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170AEC92000 IO Base - Guillevin Industrial Automation Group

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1. 5 3 Actual Values for Counters 1 and 2 Input Words 5 6 7 and 8 The current encoder values actual data are maintained in the input words 5 and 6 for counter 1 resp 7 and 8 for counter 2 Two words i e one double word are available to each counter for this purpose ES Note Only the counter s actual values are transferred in the input words 5 6 resp 7 8 The previously transferred command data values cannot be read back Parameter values cannot be returned through the communications adapter 5 3 1 Current Values for Incremental Encoders Actual value resolution is 24 bit sign 16 777 216 to 16 777 215 m Any specified modulo values only have a 24 bit unsigned resolution 0 to 16 777 215 Input words 5 7 Bit 15 14 13 12 11 1019 18 7 6 5 4 3 2 41 0 Actual or held value gt Input words 6 8 Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 G N a Actual or held value Sign Not usable 92 20 Status Information and Counted Values 5 3 2 Current Values for Absolute Encoders Input words 5 6 7 and 8 Status reporting of current values for absolute encoders is made continuously The values are maintained in the input words 5 an
2. 4 4 2 Absolute Encoder Command Data Maximum command data resolution is 25 bit unsigned 0 to 33 554 431 This depends upon encoder resolution from 0 to 4 095 for 12 bits from O to 16 777 215 with 24 bits Output words 5 7 12 bit resolution Bit 15 14 13 12 11 1019 8 7 6 5 4 3 2 1 0 Counter 1 2 command data gt Output words 6 8 24 bit resolution Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 N lt lt Counter 1 2 command data Not usable 25 bit resolution 84 20 Values Status Information and Counted 5 Status information and counted values are transferred from the counter module to the PLC in 8 input words The following data structure applies for both counter channels Input Function word High byte Low byte 1 Counter 1 status bits Counter 1 error bits 2 Counter 2 status bits Counter 2 error bits 3 Reported counter 1 current status Returned counter 1 code number 4 Reported counter 2 current status Returned counter 2 code number 5 Counter 1 current counted value bits 0 15 6 Counter 1 current counted value bits 16 S 7 Counter 2 current counted value bits 0 15 8 Counter 2 current counted value bits 16 31 20 Width 178 mm Height 216 mm 85 Status Information and Counted Va
3. Output word Entry 400 101 1200 hex 400 102 0 400 103 8 hex 400 104 0 400 105 100 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 102 300 103 801 hex 300 104 300 105 300 106 300 107 300 108 cS Note The steps 1 and 2 can be combined to one step S 113 Width 178 mm Height 216 mm Application Examples Step 3 Transfer of Threshold Value 1 Configuration of Output 2 Next the threshold value 1 200 is transferred Simultaneously output 2 is configured Output Mode A This happens with the output words 3 and 5 All other entries stay unchanged Output word Entry 400 101 1200 hex 400 102 0 400 103 A082 hex 400 104 0 400 105 200 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 102 300 103 802 hex 300 104 300 105 300 106 300 107 300 108 114 a Application Examples Step 4 Transfer of Threshold Value 2 The threshold value 2 300 is transferred next This happens with the output words 3 and 5 All other entries stay unchanged CS Note Change contents of register 400103 first before changing register 400105 contents Otherwise the threshold value 1 will be overwritten Output word Entry 400 101 1200 hex 400 102 0 400 103 A083 hex
4. Counted pulses 28 20 Operating Mode Descriptions 2 4 9 Operating Mode 9 Period Meter with 5 Time Bases In this operating mode the duration of a period can be measured In this case pulses are registered for the duration of the gate time Different time bases can be selected in accord with the period Five time bases ranging from 1us through 10 000 us are available This operating mode is applied to time measurements of processes Note The time base is to be chosen such that the precision required is achieved and that there is no counter overrun within the measurement period Depending upon the process both full and half periods can be measured Full period means measurement of the input pulse sequence from one positive edge to the next Counter input A Internal pulse sequence j Dest lt Full period gt 1 in microsec Full period 20 Width 178 mm Height 216 mm 29 Operating Mode Descriptions Counter input A _ Internal pulse sequ
5. Address 4x 5 Output word 6 high word 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Counter 1 command data high part Address 4x 6 Output word 7 low word 15 114 13 12 11 10 9 8 7 6 5 4 3 21 1 0 Counter 2 command data low part Address 4x 7 Output word 8 high word 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Counter 2 command data high part cS Note The individual word functions can be found in Chapter 4 from page 57 Counter Configuration 40 20 170 AEC 920 00 3 3 2 Input Words 8 input words from the I O module with the following contents Address 3x Input word 1 15 14 13 12 11110 9 8 7 6 15 4 3 21 1 0 Counter 1 module status bits Counter 1 error bits Address 3x 1 Input word 2 15 14 13 12 1111019 8 7 6 15 4 3 21 1 0 Counter 2 module status bits Counter 2 error bits Address 3x 2 Input word 3 15
6. A input Pulse generator B input Y Ext clock signal lt Halt period gt Counted pulses or B input E l Ext clock signal e Fulpriod 1 Counted pulses j Note If an external clock signal with 24 VDC level is to be utilized it must be connected to the B input 20 27 Width 178 mm Height 216 mm Operating Mode Descriptions Example 2 Pulse counting with an internal clock signal only 24 VDC level If an external clock signal is not available the Q1 Q3 discrete outputs can be configured for frequency output But since these outputs are only available as 24 VDC level the corresponding Q1 Q3 output must be tied to the B input and B with 1M Pulse generator to A input Q1 Q3 output to y B input lt Half period gt Counted pulses or A N Q1 Q3 output to B input lt _____ Full period 1
7. 2M 2L Absolute encoder Count hold xy Counter enable N 1 A fast blow 5 V Encoder supply Note The wiring example relates to operating modes C D and E SSI absolute encoder 50 20 170 AEC 920 00 3 6 LED Status Display C TI Eis 6171819 10 11 12 13 14 15 16 LED Status Meaning ready Green Ready for service internal logic supply voltage 5 VDC is present Off Module not ready 1L Green 1L working voltage for Q1 4 discrete outputs present Off 1L working voltage for Q1 4 discrete outputs not present 2L Green 2L encoder supply voltage 5 30 VDC is present Off 2L encoder supply voltage 5 30 VDC is not present Upper row Green Input status one LED per discrete input input active i e 1 IN signal at input logical ON 11 16 Off Input status one LED per discrete input input inactive i e 0 signal at input logical OFF Middle row Green Output status one LED per discrete output output active i e OUT 1 signal at output logical ON 13 16 Off Output status one LED per discrete output output inactive i e 0 signal at output logical OFF Bottom row Red Discrete output overload one LED per output short circuit or ERR
8. Ne ale BU A 1 D D Z2 2M 2L 1M 1M S D D D D D 1M 1M 1M 4 1M 2M 2L os Counter enable Accept preset value 1 A fast blow 24 V Transmitter supply 110 21 Application Examples B 2 2 Solution The parameterization of the counter is done in seven steps 1 Set counter mode and preset mode 2 Transfer of the preset value 3 Transfer of threshold value 1 configuration of output 2 4 Transfer of threshold value 2 5 Enable the counter via software 6 Setting the count value to the preset value 7 Enable the counter via hardware These steps are described on the following pages 21 111 Width 178 mm Height 216 mm Application Examples Step 1 Set Counter Mode and Preset Mode Counter mode 2 and preset mode 1 are set first This with the output word 1 Output word Entry 400 101 1200 hex 400 102 0 400 103 400 104 400 105 400 106 400 107 ET JE DE er 0010 400 108 Input word Counter feedback 300 101 220 hex 300 102 300 103 800 hex 300 104 300 105 300 106 300 107 300 108 112 21 Application Examples Step 2 Transfer of the Preset Value Next the preset value 100 is transferred This happens with the output words 3 and 5 All other entries stay unchanged
9. Caution A A module without fuse protection can cause a short circuit and or voltage spikes Protective measures should always provide external supply voltage fuses for module protection Wiring diagrams specify the proper fuse values Failure to observe these precautions will endanger personal safety or risk damage to the I O base 42 20 170 AEC 920 00 Table 4 Terminal block mapping Row Terminal no Signal Function 1 1 6 A1 A2 Positive differential A input 5 VDC counter channels 1 2 2 7 B1 B2 Positive differential B input 5 VDC counter channels 1 2 3 8 Z1 Z2 Positive differential Z input 5 VDC counter channels 1 2 4 9 C1 C2 Positive SSI clock output counter channels 1 2 11 14 11 14 Discrete accept preset value inputs counter channels 1 2 12 15 12 15 Discrete counter enable inputs counter channels 1 2 13 16 13 16 Discrete hold current count inputs counter channels 1 2 17 M Power supply return 18 L Module 24 VDC power supply 2 1 6 A1 A2 Negative differential A input 5 VDC counter channels 1 2 2 7 B1 B2 Negative differential B input 5 VDC counter channels 1 2 3 8 Z1 Z2 __ Negative differential Z input 5 VDC counter channels 1 2 4 9 C1 C2 Negative SSI clock output counter channels 1 2 13 14 Q1 Q2 Counter channel 1 discrete outputs 15 16 Q3 Q4 Coun
10. 400 105 400 106 400 107 400 108 o 0 00 0 0 0 Input word Counter feedback 300 101 220 hex 300 102 300 103 800 hex 300 104 300 105 300 106 300 107 300 108 21 Width 178 mm Height 216 mm 131 Application Examples Step 2 Configuration of Output 1 as Frequency Output and Disable of the Broken Wire Detection Configure output 1 as frequency output output Mode D disable the broken wire detection and transfer the time basis 5 ms for the output frequency out words 3 and 5 After that output 1 is blinking 5 ms on 5 ms off Note Note In the reference data editor first enter the time basis word 5 and then the ratio no in word 3 Otherwise the value 0 is going to be transferred and the output will be switched off Output word Entry 400 101 808 hex 400 102 0 400 103 D8B hex 400 104 0 400 105 5 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 hex 300 102 300 103 80B hex 90B hex 300 104 300 105 300 106 300 107 300 108 132 21 Application Examples Step 3 Configuration of Output 3 as Frequency Output for the Time Basis Configure output 3 as frequency output Output Mode D and transfer the time basis 500 ms for the output frequency out words 4 and 7 After that output 3
11. 64 20 Counter Configuration 4 1 6 Preset Value Acceptance for Short Cams The preset value is entered when the SW enable bit E_P and 11 l4 hardware input both have 1 signal and a zero pulse is on the Z counter input This function can be used in those cases where the encoder provides only a single zero pulse over the cam length Entry takes place on the zero pulse falling edge for down counters and rising edge for up counters refer to Figure 11 For incremental encoders entry always takes place on the zero pulse rising edge since the zero pulse always coincides with a 1 signal at the B counter input CS Note Should the encoder provide several zero pulses during the cam signal the counter is set to the preset value with each zero pulse The following timing diagram explains counter setting to the preset value with the short cam signal Figure 11 Short cam function UU k A counter input B counter input Down counting S counting direction Up counting Z counter input 1 fl zero pulse i 1 i SW enable E_C l i Short cam l l 11 14 i f ler Counted value i E i Preset value l 7 gt Time 20 65 Width 178 mm Height 216 mm Counter Configuration Preset Value Acceptance for Long Cams Preset value entry takes place at the first rising edge of the zero pulse on the Z counter input which follows an 11 14 hardware input falling
12. A1 Bi Z1 C1 A2 B24 Z2 C2 1L 1L Q1 Q2 Q3 Q4 1M 1L 2 D D D D D D D D D oa oO D D L 3 A1 Bi Z1 2M 2L A2 223 R 1M 11M 1M 1M 1M 2M 2L Os 0 ojo oo Counter enable Accept preset value 1 A fast blow 24 V Transmitter supply 21 Width 178 mm Height 216 mm 119 Application Examples B 3 2 Solution The parameterization of the counter is done in seven steps 1 Set counter mode and preset mode transfer the preset value and disable of the broken wire detection 2 Configuration of output 1 as frequency output Transfer of threshold value 1 configuration of output 2 Transfer of threshold value 2 Enable the counter via software Setting the count value to the preset value SN LO or ee o Enable the counter via hardware These steps are described on the following pages 120 Application Examples Step 1 Set Counter Mode and Preset Mode Transfer the Preset Value Counter mode 2 and preset mode 1 are set first disable protection wire detection The transfer of the preset value 100 is done simultaneously ratio no 1 This is done with the output words 1 3 and 5 Output word Entry 400 101 1200 hex 400 102 0 400 103 8 hex 400 104 0 400 105 100 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 102 300 103 801 hex 300 104 300 105
13. 172 PNN 210 22 Modbus Plus port 172 PNN 260 22 Two redundant Modbus Plus ports Additional Documentation Further information regarding the processor and interface adapters can be found in the 870 USE 101 00 manual Dimensions of the combined modules with and without an interface adapter are given in the 870 USE 002 00 User Manual 20 Introduction 1 2 Functional Details and Utilization The 170 AEC 920 00 I O base contains two 200 kHz hardware counters Typical application areas would be Event counting Frequency measurements Period measurements Pulse generator Position sensing through incremental encoders quadrature mode Position sensing through SSI absolute encoders The module can also be employed for pulse and position operation One of a possible 13 operating modes must be parameterized depending upon the particular application refer to the overview of operating modes in Ch 2 Encoders perform the acquisition of pulses or positions and forward them to the I O base The I O base firmware then interprets the incoming data as pulses path increments or based upon the operating mode and compares them continuously with the prescribed command data values These comparison results control two discrete hardware outputs for each counter These outputs can consequently be utilized as first and final set point cutoff output These operating modes often require a specific type of
14. Transfer ratio no 9 the time basis 1000 ms and the setting full period value 5 Output word Entry 400 101 A08 hex 400 102 0 400 103 D89 hex 400 104 0 400 105 5 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 hex 300 102 300 103 809 hex 909 hex 300 104 300 105 300 106 300 107 300 108 150 21 Application Examples cS Note Step 1 3 may be combined to one step Step 4 Enable the Counter via Software Set the counter enable bit Bit 1 in output word 1 Output word Entry 400 101 AOA hex 400 102 0 400 103 D89 hex 400 104 0 400 105 5 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 A00 hex BOO hex 300 102 300 103 8809 hex 8909 hex 300 104 300 105 500 dec 300 106 300 107 300 108 The pulses on the counter input will be counted as long as the counter is enabled After the first completed count period bit 15 of input word 3 will be set and the and S 151 Width 178 mm Height 216 mm Application Examples the number of pulses per second is displayed in input word 5 500 in this example Note Bit positions are IEC That is bit 15 is left most while bit zero 0 is right most when viewing register contents For the operating mode A all digital inputs are without function
15. gt 5 957 e ee eB SSE NE See Sees Q2 Q4 2 hex 20 Width 178 mm Height 216 mm 73 Counter Configuration 3 hex and 4 hex output behavior The Q1 Q3 output is set to 1 signal at counter enable and returns to 0 when the counted value threshold value 1 retentive The Q2 Q4 output is set to 1 signal at counter enable and returns to 0 when the counted value threshold value 2 retentive Figure 13 Function 3 hex and 4 hex Counted value Threshold value 2 em ya neh nennen Threshold value 1 ZH Henne Anne S Q1 Q3 Q2 Q4 74 20 Counter Configuration 5 hex output behavior The Q1 Q3 output is set to 1 signal when the counted value threshold value 1 retentive The Q1 Q3 output is set to 0 signal when the counted value threshold value 2 retentive Figure 14 Function 5 hex Counted value Threshold valie 2 nme PSS a SSeS OS ae SS Se aS hreshold Vae 37 22 57 eS ee ee SER Is eae Se eS ee Q1 Q3 20 75 Width 178 mm Height 216 mm Counter Configuration 6 hex and 8 hex output behavior The Q1 output is set to 1 signal when the counted value gt threshold value 1 The Q1 output is set to 0 signal when the counted value lt threshold value 1 The Q2 output is set to 1 signal when the counted value gt threshold value 2 The Q2
16. hardware input is at 1 signal D14 12 15 1 The Counter enable hardware input is at 1 signal D15 11 14 1 The Accept preset value hardware input is at 1 signal 20 Width 178 mm Height 216 mm 89 Status Information and Counted Values S 5 2 Status Return Information Words 3 and 4 The returned code numbers and reported counter bit parameter status are transferred to the PLC in input words 3 and 4 Counter 1 return information is conveyed in input word 3 The individual bits have the following significances Counter 2 return information is conveyed in input word 4 The significance of the status return information bits correspond to word 3 High byte reported status Low byte returned code number C a gt r AS Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Signal amp hm 218 2 2 2 5 3 3 5 amp 5 2 gt 3 w C E 5 3 9 35 E LC O O First counting cycle is complete Accept preset value HW amp counter preset SW enable s Hold current count HW amp counter hold SW enable s The preset value was entered operating modes 4 and 5 Q2 Q4 discrete output state Counter 1 2 Q1 Q3 discrete putput state Counter 1 2 Returned code number as transferred handshake 90 20 Status Information and Counted Values 5 2 1 5
17. without the prior written consent of Schneider Electric Translation into any language is prohibited Information in this manual is subject to change without notice and does not represent a commitment on the part of the vendor 1999 Schneider Electric All rights reserved Contents Contents T ee en bedava eae TT 1 Terminology 3 sce toa op ee peed ack boas eee Ris wie AAE Hebe dev darted 2 Related Documentation cece cece eee eee eee 3 Chapter 1 Introduction ss see sss x x x x x x ee eee es 5 1 1 TSX Momentum Adapters 0 eee eens 6 1 1 1 TSX Momentum Communications Adapters 0 6 1 1 2 TSX Momentum Processor Adapters and Interface Adapters 7 1 2 Functional Details and Utilization 00 eee eee 9 1 2 41 Event Counting s s san ein non 10 1 2 2 Repetitive Counter e tte teens 10 1 2 3 Frequency Measurements cece eee 10 1 2 4 Period Measurements s s e e c eee eee nn 10 i25 Pils Generator u heilen 10 1 2 6 Incremental Position Sensing 0 ccc eects 11 1 2 7 Absolute Position Sensing 00 cece eee ete eens 12 Chapter 2 Operating Mode Descriptions s sc c x x x x c x x x x x x e e e ee 13 2 1 Overview of AEC 920 00 Operating Modes 2222222222 14 2 2 Common Counter Characteristics 0 cette teens 16 2 2 1 Counter Resolution einant iian a ep a nennen nenn 16 2 2 2 5 VDC 24 VDC C
18. 0 Input word Counter feedback 300 101 9B00 hex 4903 hex 300 102 300 103 4803 hex 4903 hex 300 104 300 105 100 dec 300 106 300 107 300 108 126 21 Application Examples Step 7 Enable the Counter via Hardware Enable the counter by setting the digital input 2 input word 1 5B00 hex 5A00 hex input word 3 2803 hex 2903 hex Every pulse on the count input 1 gets counted as long as the digital input 1 is on The actual count value can be red from word 300 105 Output 2 goes on when the count value reaches the threshold value 1 and goes off when it reaches threshold value 2 Output 1 is is blinking With a positive edge on the digital input 1 you reset the count value to the preset value cS Note Make sure that a value gt 0 is entered into output word 5 6 before entering the ratio no B for a frequency output Otherwise the value 0 will be overtaken and the output will be switched off Inverting the Bit D_B Bit 15 in output word 1 changes the count direction of the counter With the capture input the count value is held constant Internally however the counter keeps on counting and serves the outputs correctly 21 127 Width 178 mm Height 216 mm Application Examples B 4 B 4 1 Example 4 Pulse rate Counter Full Period with external Time Base Mode 8 Task The counter has to count the number of pulses per second The pulses to be counted are generated by the digi
19. 10 Hex 1 0 0 The preset value is entered by a 0 1 edge for count up anda 1 0 edge for count down at the 11 14 hardware input Used for axis control Hex 1 0 1 The preset value is entered by a 1 0 edge for count up anda 0 1 edge for count down at the 11 14 hardware input Hex 1 1 0 Reference point with short cam signal refer to Chapter 4 1 6 page 65 Hex Reference point with long cam signal refer to Chapter 4 1 6 page 65 Only while SW enable bit E_P 1 signal 62 20 Counter Configuration Counting Direction Reversal D15 D B The counting direction is reversed for all operating modes when software sets bit 15 Caution After SSI encoder direction reversal a transfer of the preset value and software limit switch values must be repeated Figure 9 Demonstration of preset mode 1 hex Pulses UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUL SW enable E_P word 1 2 bit 0 11 14 hardware input SW enable E C word 1 2 bit 1 HW enable 12 15 Counted value Le Preset value 20 Width 178 mm Height 216 mm 63 Counter Configuration Figure 10 Demonstration of preset mode 3 hex Pulses UU UU UU UU e SW enable E_P word 1 2 bit 0 11 14 hardware input L SW enable E_C word 1 2 bit 1 HW enable 12 15 Counted value Preset value
20. 14 13 12 11 110 9 8 7 6 15 4 3 21 1 0 Counter 1 output status Code number for counter 1 command data Address 3x 3 Input word 4 15 14 13 12 11110 9 8 7 6 15 4 3 21 1 0 Counter 2 output status Code number for counter 2 command data Address 3x 4 Input word 5 low word 15 14 13 12 1111019 8 7615 4 3 21 1 0 Counter 1 current counted value low part Address 3x 5 Input word 6 high word 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Counter 1 current counted value high part Address 4x 6 Input word 7 low word 15 14 13 12 11 10 9 8 7 6 5 4 3 2 11 0 Counter 2 current counted value low part Address 4x 7 Input word 8 high word 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Counter 2 current counted value high part tS Note See page 85 for more details Diagnosis 20 41 Width 178 mm Height 216 mm 170 AEC 920 00 3 4 Internal Connections and Signal Functions The following figure shows I O base internal connections Counter 1 Counter 2 Discrete Coumter Control Inputs A A A r A 4 N N Al Bi Z1 C1 A2 B2 Z2 C2 5 E T PRS M L 1 a a o DT o o BA o o o o a o a o o SSI encoder clock A1 Bi Z1 B A2 aol 1L 1L QI Q4 1M 1L 2 oo o o erg o EB UY ji Discrete output 3 A1 B1 Z1 2M 2L A2 B2 Z2 2M 2L 1M mj 2M 2L D D m 5 D D ANZ A7
21. 2 2 Returned Code Number Low Byte Input words 3 4 bits DO D3 The configured code numbers previously transferred to the module through output words 3 and 4 are reported back to the PLC through the DO D3 bits The returned code number serves as a command data transfer handshake refer to 4 2 3 Note Should an invalid code number be conveyed a 1F hex value is returned in the DO D4 bits and the command data transferred in words 5 6 resp 7 8 are not utilized by the module Reported Status High Byte Input words 3 4 bits 8 15 D8 Q1 Q3 1 Q1 Q3 discrete output is at 1 signal D9 Q2 Q4 1 Q2 Q4 discrete output is at 1 signal D10 Unused D11 REF 1 The preset value is registered mode 4 or 5 and the outputs are enabled There is no presetting necessary to enable outputs in all the other operating modes 0 The preset value has not been registered mode 4 or 5 and the outputs are not enabled resp an invalid operating mode has been chosen D12 ECPP 1 The Counter hold function is activated D13 ECP 1 The Counter enable function is activated D14 PP 1 The Counter preset function was executed by the counter D15 RCVA 1 The first counting cycle in the operating modes 8 pulse counter 9 period meter or A frequency meter is complete 20 Width 178 mm Height 216 mm 91 Status Information and Counted Values
22. 2 2 6 Event Processing The user has the option of assigning event dependent functions to the outputs The discrete outputs are set when the parameterized event has occurred The following events can be parameterized Counter value threshold value Counter value gt threshold value Counter value lt threshold value Counter value gt threshold value 1 and lt threshold value 2 Additional information can be found in Chapter 4 2 3 2 2 7 Definition of Terms Explanations of terminology employed in this manual follow maximum up down counting range actual value output if required actual value gt upper software limit switch actual value gt threshold value 2 actual value gt threshold value 1 actual value gt lower software limit switch y y y y y preset value 16 777 216 lower software threshold values 1 and 2 upper software 16 777 215 limit switch limit switch Counting pulse signals are dependent upon the type of transmitter The I O base can process signal levels of either 5 VDC or 24 VDC Two counter inputs are provided for each of the two counters 5 VDC differential signals channels A A B B Z Z 24 VDC differential signals channels A A B B Z Z m 24 VDC single ended signals channels A B Z connected to the transmitter s ground Be sure to turn off the encoder monitoring 18 20 Operating Mode Descriptions
23. 24 bit plus sign 16 777 216 to 16 777 215 Absolute 25 bit 0 to 33 554 431 12 bit 0 to 4095 24 bit 0 to 16777215 5 VDC differential Max count frequency 200 kHz Input voltage of 1 signal Minimum 2 4 VDC Input current of 1 signal gt 3 7mA Input voltage of 0 signal Maximum 1 2 VDC Input current of 0 signal lt 1 mA at 1 2 VDC 24 VDC single ended Max count frequency 10 kHz Input voltage of 1 signal Minimum 11 VDC Input current of 1 gt 6mA signal Input voltage of 0 3 5 VDC signal Input current of 0 signal lt 2 mA at lt 5 VDC 20 Width 178 mm Height 216 mm 53 170 AEC 920 00 Discrete Outputs Output type Solid state Supply voltage range 20 24 30 VDC Number of outputs 4 Output voltage 0 5 V Number of groups 2 Current load 0 5 A max output Type of signal True high Leakage current lt 0 5 mA at 24 VDC Voltage drop in on state lt 0 5 V DC at 0 5 A Overload protection Outputs are protected against overload and short circuit see below Fault display 1 red LED per output row 3 as short circuit overload indicator Error message Error message I O error to the com munications adapter if the module is defective I O base self test Output delay with resis tive l
24. 300 106 300 107 300 108 21 Width 178 mm Height 216 mm 121 Application Examples Step 2 Configuration of Output 1 as Frequency Output Configure output 1 as frequency output input Mode D and transfer the time basis 250 ms output words 3 and 5 After that the output is blinking 250 ms on 250 ms off Output word Entry 400 101 1200 hex 400 102 0 400 103 D8B hex 400 104 0 400 105 250 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 hex 300 102 300 103 80B hex 90B hex 300 104 300 105 300 106 300 107 300 108 122 21 Application Examples Step 3 Transfer of Threshold Value 1 Configuration of Output 2 Next the threshold value 1 200 is transferred Simultaneously output 2 is configured Output Mode A This happens with the output words 3 and 5 Output word Entry 400 101 1200 hex 400 102 0 400 103 AD82 hex 400 104 0 400 105 200 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 hex 300 102 300 103 802 hex 902 hex 300 104 300 105 300 106 300 107 300 108 21 Width 178 mm Height 216 mm 123 Application Examples Step 4 Transfer of Threshold Value 2 The threshold value 2 300 is transferred next This happens with the out
25. 6 Differential Counter 000 cece eee eens 25 Operating Mode 7 Up Down Counter with Directional Signal 25 Operating Mode 8 Pulse Counter with Time Base Rotary Speeds 26 Operating Mode 9 Period Meter with 5 Time Bases 29 Operating Mode A Frequency Meter with 5 Time Bases 31 Operating Modes for Absolute Encoder eee c cence cence 32 Counter Resolution 0 0 cece cee eee eee tence eee neeees 32 Encoder Offset oror RE rin ans 33 SSI Serial synchronous Interface 000 cece cece e eee teens 33 Counter Channel for Counter Functions with Absolute Encoders 35 Operating Mode C Position Sensing with Single Turn Encoders SSI T2 Bit Resolutions eer rerama Kanaren Baa baleen 36 Operating Mode D Position Sensing with Multi Turn Encoders SSI 24 Bit Resolution 0000 cece nennen nennen nenn 36 Operating Mode E Position Sensing with Multi Turn Encoders SSI 25 Bit Resolution inso csp let dete eat ae ae lected Sera es Aad Gets ne ae 36 170 AEC 920 00 Module Description 00005 37 Momentum Adapter Selection 0000 cece cece eee eee 38 Terminal Block Selection 0 0 cece cece cee tenet nennen 38 Configuratio me anregt rn Gh thee ee 39 Output Words eree eae testi re hoe bud Dame SEE 40 Input WOrds 4 dob bea Sead oe Pete bee bed taeda wad ets 41 Internal Connections and Signal Functions nn 42 Wiring Pr
26. Internal time base t o ER lt Full period gt Frequency measurement over a half period A counter input frequency to be measured Internal time base t L Half period 20 31 Width 178 mm Height 216 mm Operating Mode Descriptions 2 5 2 5 1 Operating Modes for Absolute Encoder Both 170 AEC 920 00 counters can also be connected to absolute encoders using the SSI protocol Note Mixed operation with incremental and absolute encoders is not supported Hereafter only the functions deviating from the incremental encoder will be described Note The input filter must be disabled in the operating modes C D and E The following characteristics apply to absolute encoder operation Counter Resolution The resolution of both counter channels can be chosen as 12 24 or 25 bit This is equivalent to decimal values from 4096 to 33 554 431 The following operating modes are possible with absolute encoders C counting with 12 bit resolution single turn encoder m D counting with 24 bit resolution multi turn encoder m E counting with 25 bit resolution multi turn encoder 32 20 Operating Mode Descriptions 2 5 2 2 5 3 Encoder Offset The encoder s absolute position value can be shifted through the encoder offset Displacement is only allowed within the max encoder resolution The transferred offset is added to the current actual value through a 0 gt 1 edge of th
27. and lower software limit switches When a software limit switch boundary is exceeded discrete outputs are deactivated and an error message is given The software limit switches are only active after parameter values for both the upper and lower software limit switches have been transferred 16 20 Operating Mode Descriptions 2 2 5 Hold the Current Counted Value Capture Function With this function the current count value is placed in an additional internal register Counting operations continue independent of this function The function is required in particular for the measurement of pulses or paths Counted value holding takes place after an enable through the software E_CP bit and an edge at either the 12 discrete input for counter 1 or I6 for counter 2 This held counted value continues to be transferred as the actual value to the PLC until the E_CP bit is reset by software Transfers of the counter s true actual value are reinstated after the reset Pulses SW count enable ZZ HW count enable 12 15 er SW enable E_CP 1 Hold current f count 13 16 i A Actual value registered by AEC f i 0 A Actual value i sent to PLC 0 20 17 Width 178 mm Height 216 mm Operating Mode Descriptions
28. block connectors Grounding screw Grounding busbar m AlO LI DIN rail interlock Wall installation mounting holes spring 20 Width 178 mm Height 216 mm Introduction 1 1 TSX Momentum Adapters TSX Momentum Communications Adapters The communications adapters serve the I O bases as interfaces to numerous industry standard open communication networks The following communications adapters are available Table 1 Available communications adapters Type Communications adapter for 170 INT 110 00 INTERBUS 170 NEF 110 21 Modbus Plus 984 data format over single network cable 170 NEF 160 21 Modbus Plus 984 data format over dual network cable 170 PNT 110 20 Modbus Plus IEC data format over single network cable 170 PNT 160 20 Modbus Plus IEC data format over dual network cable 170 DNT 110 00 ProfiBus DP 170 FNT 110 00 FIPIO for TSX 7 and April 170 FNT 110 01 FIPIO for TSX Premium 170 LNT 710 00 DeviceNet 170 LNT 810 00 ControlNet 170 ENT 11000 Ethernet Additional Documentation Detailed information for the individual communications adapters can be found in the specific manuals refer to the Additional Documentation section in the foreword The procedure to join the communications adapter and I O base is describe
29. but max 5A fast blow In accordance with the designed power consumption of the connected encoders but max 1 A fast blow EMC in Industrial Use Mechanical Design Noise immunity IEC 1131 Surge voltage in the mains supply 500 V 12 Ohm Emissions EN 50081 2 Approvals Depth without an adapter Height UL CUL CSA CE 141 5 mm without or with 1 row bus bar 159 5 mm with 2 row busbar 171 5 mm with 3 row busbar 20 Width 178 mm Height 216 mm 55 170 AEC 920 00 56 20 Counter Configuration 4 Together with a communication adapter or processor adapter the 170 AEC 920 00 I O base comprises a fully functional TSX Momentum System module A bit Ievel explanation of output word functions is follows Settings for counter functions output configuration and counter channel preset values are made through output word parameters This is accomplished for the two counters through the following output words Output Function word High byte Low byte 1 Counter 1 configuration bits 2 Counter 2 configuration bits 3 Counter 1 output configuration Counter 1 command data code no 4 Counter 2 output configuration Counter 2 command data code no 5 Counter 1 command data values bits 0 15 6 Counter 1 command data values bits 16 31 7 Counter 2 command data values bits 0 15 8 Counter 2 command da
30. connectors Grounding screw Grounding busbar DIN rail interlock spring Wall installation mounting holes ONO GM 20 Width 178 mm Height 216 mm 37 170 AEC 920 00 3 1 3 2 Momentum Adapter Selection Select an appropriate communications adapter or processor adapter for your application and mount according to the 870 USE 002 00 User Manual instructions Caution Electrical voltages are present when the I O base is connected to a supply voltage Ensure that no voltage is applied as long as the I O base is without an adapter This can be achieved by not attaching the terminal blocks to the I O base until after adapter installation Always be sure to unplug the terminal blocks before separating the adapter from the I O base That should leave the I O base without power Failure to observe these precautions will endanger personal safety or risk damage to the I O base Terminal Block Selection Suitable terminal blocks must be chosen for the connection of transmitters sensors and actuators to the I O base These can be found in the 870 USE 002 00 User Manual refer to Terminal Block and Busbar Selection 38 20 170 AEC 920 00 3 3 Configuration The 170 AEC 920 00 I O base is equipped with two configurable hardware counters with discrete I Os for high sp
31. dec 300 106 300 107 300 108 The pulses on the counter input will be counted as long as the counter is enabled After the first completed count period bit 15 RCVA of input word 3 will be set and the number of pulses per second is displayed in input word 5 100 dec in this example Note Bit positions are IEC That is bit 15 is left most while bit zero 0 is right most when viewing register contents Make sure that a value gt 0 is entered into output word 5 6 before entering the ratio no B for a frequency output Otherwise the value 0 will be overtaken and the output will be switched off Changes for the period definition are overtaken after a positive edge on the counter enable bit in output word 1 this is bit 1 of word one For the operating mode 8 all digital inputs are without function 21 Width 178 mm Height 216 mm 135 Application Examples B 5 Example 5 Period Meter Mode 9 with internal Time Basis B 5 1 Task In this operating mode the time length of a period can be measured This can be the time between A positive edge to the next negative edge on the counter input A counter gate half period A positive edge to the next positive edge on the counter input A counter gate full period During the gate time the counter counts internal clock signals generated by a selectable time base The time base can be set as a parameter which also determines whether the count
32. dependent upon both the preset mode and the discrete inputs Counter 1 is assigned discrete input 1 and counter 2 discrete input 4 The following preset modes are available words 1 2 bits 14 12 Preset mode Function 0 Without preset 1 The preset value is activated by a positive edge at the preset discrete input 2 The preset value is activated by a negative edge at the preset discrete input 3 The preset value is activated by a positive edge at the preset discrete input The counter is then halted A negative edge at the preset discrete input starts the counter again 4 The preset value is activated by a positive edge for count up or a negative edge for count down at the preset discrete input 5 The preset value is activated by a negative edge for count up or a positive edge for count down at the preset discrete input 6 Reference point with short cam signal 7 Reference point with long cam signal The transmitter s zero pulse Z counter input registers the preset value in preset modes 6 and 7 The transmitter provides this counting pulse with every full revolution The preset mode is configurable also refer to Chapter 4 1 4 page 62 The preset modes are not available in all operating modes frequency period and pulse counter 20 20 Operating Mode Descriptions 2 3 Counter Channel for Counter Functions with Pulse Genera
33. depends upon the employed absolute encoder and is typically on the order of 30 microseconds 34 20 Operating Mode Descriptions 2 6 Counter Channel for Counter Functions with Absolute Encoders The software amp hardware logic operations demonstrate the relationships for absolute encoders Counter 2 Counter 1 Field Inputs E P IN_1 Encoder functionles offset S Y TSX e YY Momentum IN2 amp Counter 4 adapter port Counter enable Yy enable 8 IN Words E CP 7 8 OUT R Words IN_3 IT amp S Counter Hold current J S hold count Data A um Q1 Output A m SSF Interface Clock A Q2 Output Z Figure 3 Absolute encoder functional diagram 20 Width 178 mm Height 216 mm 35 Operating Mode Descriptions 2 6 1 2 6 2 2 6 3 Operating Mode C Position Sensing with Single Turn Encoders SSI 12 Bit Resolution For connection of a SSI encoder with a single track Resolution is 12 bit per revolution single turn encoder Single turn encoders begin counting again from 0 after a full revolution They are suitable for traversing ranges in which either the encoder does not make use of the entire revolution or for those applications in which the number of revolutions is not important turntable An example of p
34. output is set to 0 signal when the counted value lt threshold value 2 Figure 15 Function 6 hex and 8 hex Counted value A Threshold value 2 N r sss 2 ec Ne See Ee eee eS Threshold value 1 Zee aa Re ee en 76 20 Counter Configuration 7 hex and 9 hex output behavior The Q1 Q3 output is set to 1 signal when the counter is enabled and counted value lt threshold value 1 The Q1 Q3 output is set to 0 signal when counted value gt threshold value 1 The Q1 Q3 output is set to 1 signal when the counter is enabled and counted value lt threshold value 2 The Q1 Q3 output is set to 0 signal when counted value gt threshold value 2 Figure 16 Function 7 hex and 9 hex Counted value A Threshold value 1 A gt fiw er Henn Ke men ern Be Threshold value 2 Q1 Q3 E W a 1 gt i 20 77 Width 178 mm Height 216 mm Counter Configuration A hex output behavior The Q1 Q3 output is set to 1 signal when the counted value gt threshold value 1 The Q1 Q3 output is set to 0 signal when the counted value gt threshold value 2 Figure 17 Function A hex Counted value A Threshold value 2 A wees ee R mem nn ees Threshold value 1 7 jf T Home 7770700 7 78 20 Counter Configuration B hex and C hex output behavior Initiate a
35. overload of the corresponding output 13 16 Off Normal Q1 Q4 output operation 20 51 Width 178 mm Height 216 mm 170 AEC 920 00 3 7 Technical Specifications Module Type 2 high speed counters 10 200 kHz Supply voltage sensor voltage working 24 VDC voltage Input current 6 mA 24VDC type 1 or 2 Load current max 0 5 A output Interbus ID Code hex 0633 decimal 1587 External Power Supply Supply voltage 20 24 30 VDC Power consumption Typically 200 mA at 24 VDC 350 mA max Power dissipation Typically 4 W 6 W maximum Discrete Counter Control Inputs Sensor supply Typically 24 VDC 30 VDC max Number of inputs 6 Sinking type Number of groups 2 Input 3 for each counter with the functions a Accept preset value b Counter enable c Count hold Type of signal True high IEC 1131 type 1 Signal level of 1 signal 11 30 VDC Signal level of 0 signal 3 5 VDC Input current 2 6 mA min for 1 signal 1 2 mA maximum for 0 signal Input voltage range 3 30 VDC Surge 45 V pk for 10 ms Input delay counter to output 1 ms max off to on 1 ms max on to off 20 170 AEC 920 00 Counter Inputs for pulses Input types 5 VDC differential RS 422 or 24 VDC single ended IEC 1131 type 2 Counting range incremental
36. progress 1 transfer is complete 100 20 Application Examples 21 Width 178 mm Height 216 mm 101 Application Examples B 1 B 1 1 Example 1 Up Counter with 24 Vdc Pulse Encoder Mode 2 Task Counter 1 as up counter m Enable via hardware input 2 Reset count value via hardware input 1 positive edge m Start value of the counter is 0 m Threshold value 1 is 100 m Threshold value 2 is 200 Output 1 switches on when counter is enabled and switches off when threshold value 1 is reached m Output 2 switches on when threshold value 1 is reached and switches off when threshold value 2 is reached 102 21 Application Examples Figure 20 Wiring example 1 Up Counter with 24 VDC Pulse Encoder 24 VDC 24 VDC Return Return Counter 1 Counter 2 Counter Control Inputs A A A 4 N g N fr N Al Bi Z1 C1 A2 B2 Z2 C2 1 2 18 4 15 l6 M L 1 D D D D S D D D D D D D D D L B24 Z2 C2 1L 1L Q1 oi ee o Q2 Q3 Q4 1M 1L X e Z2 2M 2L 1M 1M 11M 1M 1M 1M 2M 2L D D D D D LS A L ann nee Counter enable N Accept preset value 1 A fast blow 24 V Transmitter supply 21 103 Width 178 mm Height 216 mm Application Examples B 1 2 Solution The parameterization of the counter is done in five steps 1 Set counter mode and pr
37. pulse when counted value threshold value 1 pulse length is definable 1 2 EXP 32 ms Figure 18 Function B hex and C hex Counted value A Threshold value 1 mr cs Ge se ee eee a Threshold value 2 Q1 Q3 Pulse length definable 20 79 Width 178 mm Height 216 mm Counter Configuration Priorities The following priorities apply to the setting of discrete outputs Highest priority A force through the PLC Frequency output active D hex il Software limit switches min max Lowest priority Software configuration for threshold values 1 and 2 80 20 Counter Configuration 4 3 Code Numbers and Meaning of the Parameters Output Words 5 6 and 7 8 Set points are handled in output words 5 and 6 for counter 1 and in words 7 and 8 for counter 2 Since only two words one double word are availible for each counter the meaning of the set point is determined by their allocation to a particular code number Every set point must be sent in a data frame from the master to the I O base This can be done for instance using a function block The code numbers are returned to the PLC during the parameterization If the associated code number is indicated in the PLC the next parameter and associated code number can be sent to the module m The code number for counter 1 is located in output word 3 HEX 0 m The code number for counter 2 is located i
38. since every edge of the A and B inputs can be evaluated refer to the examples in Appendix B 1 page 102 20 23 Width 178 mm Height 216 mm Operating Mode Descriptions Count up gt gt Count down A1 input T T 46 8 10 12 2 B1 input if ff I TAT TAT 01 5 7 9 1113 15 1412108 6 4 2 0 90 90 Z1 input Note The differential signal diagrams were omitted for operating modes 4 and 5 for clarity 24 20 Operating Mode Descriptions 2 4 6 Operating Mode 6 Differential Counter In this operating mode all pulses at the A input cause counting up while all pulses at the B input invoke counting down This means that in this operating mode the pulse difference between the A and B inputs is formed The 2 discrete outputs can be controlled through 2 programmable threshold values A input N i T T count up 0 1 2 3 4 B input T T i T count down 3 2 1 0 2 4 7 Operating Mode 7 Up Down Counter with Directional Signal In this operating mode all pulses at the A input are counted up or down in accordance with the state of the B input Counts are up for a B counter input 1 signal and down on a 0 signal The 2 discrete outputs can be controlled through 2 programmable threshold values M hnn ILL Plot je esp 0 1 0 1 2 1 0 a B1 input count up count d
39. state D7 Q2 This bit contains the desired force state for Q2 discrete output 0 Output inactive 1 output active 24 VDC 60 20 Counter Configuration 4 1 3 Operating Mode Bits 8 11 output words 1 2 Operating mode hex Bits 11 10 9 8 Trans type Function 0 0 0 Channel not ready parameters not reset outputs 0 Pul Down counter Pul Up counter Corresponds to operating mode 0 Inc Up down counter position sensing x1 counting Inc Up down counter position sensing x4 counting o o r olm o0 0 0 0 0 0 lololo olo lo Le ILA Lel LAAL A Pul Differential counter A counter input forward B counter input backward Pul Up down counter A counter input up B counter input down 1 up 0 down Pul Pulse counter with external time base e g for rotary speeds flow rates etc a with an external clock as time base to the B counter input or b Q1 Q3 frequency output as time base to the B counter input Pul Period meter with 5 time bases for full or half periods 0 without time base full period 1 1 2 10 3 100 4 1 000 5 10 000 us half period 9 1 A 10 B 100 C 1 000 D 10 000 us Pul Frequency meter with 5 time bases for full or half periods 0 without time base full period 1 0 1 2 1 3 10 4 100 5 1
40. 00 105 200 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 5A00 hex 300 102 300 103 803 hex 300 104 300 105 300 106 300 107 300 108 Step 5 Enable the Counter via Hardware Enable the counter by setting the digital input 2 input word 2903 hex Output 1 gets on Every pulse on the count input 1 gets counted The actual count value is in word 300 105 With a positive edge on the digital input 1 the count value default value 0 gets reset to 0 108 Application Examples B 2 Example 2 Up Counter with 24 Vdc Pulse Encoder and Preset Value Mode 2 B 2 1 Task Counter 1 as up counter m Enable via hardware input 2 Reset count value via hardware input 1 positive edge Counter starts with count value 100 Start value of the counter is 0 Threshold value 1 is 200 m Threshold value 2 is 300 Output 2 goes on when threshold value 1 is reached and goes off when threshold value 2 is reached Output 1 stays unused 21 109 Width 178 mm Height 216 mm Application Examples Figure 21 Wiring example 2 Up Counter with 24 Vdc Pulse Encoder and Preset Value OO Counter 1 Counter 2 Counter Control Inputs QO S S A A A gt 3 3 C N K N E N IA C Al Bi Z1 C1 A2 B2 Z2 C2 1 2 18 4 15 I6 M L 1 D D D oO D D D B D i D B D LE A1 B1 Z1 C1 A2 B24 Z2 C2 1L 1L QI Q2 Q3 Q4 1M 1L 2 o a a a a a a a a a
41. 000 ms half period 9 0 1 A 1 B 10 C 100 D 1 000 ms Corresponds to operating mode 0 Abs Position sensing with single turn encoders SSI 12 bit resolution Abs Position sensing with multi turn encoders SSI 24 bit resolution Abs Position sensing with multi turn encoders SSI 25 bit resolution Software reset This always resets both counters regardless of whether this operating mode has been invoked for counter 1 or 2 20 Width 178 mm Height 216 mm 61 Counter Configuration 4 1 4 Preset Modes Output words 1 2 bits 12 14 Preset values are entered through the respective hardware inputs l1 for counter 1 14 for counter 2 When no preset value is transferred from the PLC a default preset value of 0 is placed in the counter cS Note The corresponding SW enable must be set Bits 14 13 12 Function Hex O 0 0 The preset value is entered when the SW enable bit E_P 1 signal the 11 14 hardware input is functionless Hex 0 0 1 The preset value is entered by a 0 1 edge at the 11 14 hardware input refer to Figure 9 Hex O 1 O The preset value is entered by a 1 0 edge at the 11 14 hardware input Hex 0 1 1 The preset value is entered by a 1 signal at the 11 14 hardware input halting further counting The counter resumes when the 11 14 hardware input 0 signal refer to Figure
42. 1 Width 178 mm Height 216 mm 139 Application Examples Step 2 Configuration of output 3 as frequency output Configure output 3 as frequency output ratio no D and transfer the time basis 50 ms for the clock frequency output words 4 and 7 After that output 1 is blinking 50 ms on 50 ms off Note First enter the value in reg 7 8 other than zero else outputs switched off then enter the command in register 4 DOB hex Output word Entry 400 101 908 hex 400 102 0 400 103 0 400 104 DOB hex 400 105 0 400 106 0 400 107 50 dec 400 108 0 Input word Counter feedback 300 101 220 hex 320 hex 300 102 300 103 800 hex 300 104 B hex 10B hex 300 105 300 106 300 107 300 108 140 21 Application Examples Step 3 Transfer of the time base setting full period and disable of the broken wire detection This is done with the output words 3 and 5 Output word Entry 400 101 908 hex 400 102 0 400 103 88 hex 400 104 DOB hex 400 105 2 dec 400 106 0 400 107 50 dec 400 108 0 Input word Counter feedback 300 101 200 hex 300 hex 300 102 300 103 808 hex 300 104 B hex 10B hex 300 105 300 106 300 107 300 108 21 Width 178 mm Height 216 mm 141 Application Examples Step 4 Enable the counter via software Se
43. 1 Task In this operating mode the number of pulses within a given time period can be counted The time period is either The whole length of the selected time base full period m Half the length of the selected time base half period The time base is generated internally and can be configured length and period definition 10 different possibilities In this example we want to configure the digital output 1 as a frequency output and count its pulses per second This leads to the following settings Counter 1 is pulse counter Output 1 is configured as frequency output with 1 ms pulses 1 ms on 1 ms off Time basis for the frequency is set to 1000 ms full period The counter then counts during the whole time period of 1 s Broken wire detection must be disabled IEJ Note In the operating mode frequency meter the preset mode and the digital inputs are without function The digital outputs can be configured as pulse outputs only In this example we have 24 Vdc single ended signals That is why the 20 kHz Filter has to be activated 144 21 Application Examples Wiring Notes Output 1 to counter input A1 row 2 pin 13 to row 3 pin 1 A1 to return of digital outputs row 2 pin 1 to row 3 pin 11 1 kOhm resistor from output 1 to the return of the digital outputs recommended 21 145 Width 178 mm Height 216 mm Application Examples Figure 25 Wiring example 6 Frequency Met
44. 1 gt AEC Start3xStart4x Start4xi counter status send error E_P SratioNo E_C ET E_CP Q 2 4 EI_F REF ECPP ol_3_F ECP Q1_3 PP 02_4_F RCVA Q2_4 ACT_VAL ODE p_error Pres_Mod ready D_B O_config _ED CLOA first bl tot_blk par_arr 34 00001 98 20 DFB Parameterization Table 7 DFB inputs Inputs Type Function Start3x 9 Word array First address of the 8 input words Start4xi 9 Word array First address of the 8 output words counter Byte Selects counter 1 or 2 send Bool A 0 gt 1 edge for data transmission of bytes words and double words all bool values are transferred cyclically EP Bool Counter preset SW enable EC Bool Counter enable SW enable E CP Bool Counter hold SW enable EI_F Bool Input filter enable Q1_3_F Bool Force the Q1 Q3 discrete output Q1_3 Bool Desired force state for Q1 Q3 discrete output Q2_4 F Bool Force the Q2 Q4 discrete output Q2_4 Bool Desired force state for Q2 Q4 discrete output MODE Byte 4 bits for operating mode selection Pres_Mod Byte 3 bits for preset mode selection D_B Bool Reverse counting direction effective in all operating modes O_config Byte Output configuration of the Q1 Q2 resp Q3 Q4 outputs L_ED Bool A B and Z counter broken wire detect CLOA Bool Q1 to Q4 behavior for bus interruption first_bl INT Number of the first data
45. 15 mA fast bl M Bi Z1 C1 A2 B2 Za C2 1L 1L QI Q2 Q3 Q4 1M 1L 2 m D D D a a a D B a Va EN D a ii 5 A fast blo 3 2M 2L A2 B2 Z2 1M 2M 2L D D D D mi D a a Pulse generator 2L Accept preset Counter enable value 5 VDC transmitter supply Return a 1 A fast blow 46 20 170 AEC 920 00 Figure 5 Pulse generator 24 VDC wiring example Counter 1 Counter 2 Auxiliary inputs A A A 4 N g N fr N Al Bi Z1 C1 A2 B2 Z2 C2 HW 2 18 4 15 l6 M L 1 D D D D S D D D D D D D D L 24 VDC 24 VDC Return Return B24 Z24 C2 1L 1L Q1 Cecio o o Q2 Q3 Q4 1M 1L no Je aa A1 Bi 2M 2L 1M 1M H M4 1M 1M 1M 2M oo o ojo o 2L so Count hold Counter enable ll Accept preset value 1 A fast blow 24 V Transmitter supply c Note The wiring example relates to operating mode 1 counting down 20 47 Width 178 mm Height 216 mm 170 AEC 920 00 Figure 6 Incremental encoder 5 V differential RS 422 wiring example OO v cc Counter 1 Counter 2 Discrete counter control inputs QG S S A A A gt gt 3 2 C K 4 N r N NACE C Al Bl Z1 C1 A2 B2 Z2 C2 1 12 18 14 15 I6 M L 1 A A A o o Do o o o o o Q1 Q2 Q3 Q4 1M 1L 1M 1M 2M 2L w
46. 2 B2 Z2 C2 1 2 18 14 15 I6 M L Ce ra lt Wr ie er CU B A1 B1 Z1 C1 A2 B2 Z2 C2 1L 1L Q1 Q2 Q3 Q4 1M 1L o oF OF Doo o oo oo Po P ter 5 A flink i Return A1 B1 Z1 2M 2L A2 B2 Z2 E 1M M 1M 1M 1M 2M 2L o BOC o jo o fo oo 1kQ 1kQ 21 Width 178 mm Height 216 mm 129 Application Examples B 4 2 Solution The parameterization of the counter is done in five steps 1 Set counter mode and activate the 20 kHz input filter 2 Configuration of output 1 as frequency output to be counted and disable of the broken wire detection 3 Configuration of output 3 as frequency output for the time base 4 Transfer of the setting full period 5 Enable the counter via softwareThese steps are described on the following pages ES Note We use a 24 V single ended pulse encoder This means that we do not connect the terminal 2 and 3 of the encoder interface The counter then generats a broken wire signal bit 5 in word 1 in this mode To supress this signal we have to disable the broken wire detection step 2 130 21 Application Examples Step 1 Set Counter Mode and Activate the 20 kHz Input Filter Counter mode 8 and the 20 kHz filter are configured first in the output word 1 Output word Entry 400 101 808 hex 400 102 400 103 400 104
47. 2 1 0 Signal D15 D14 D13 D12 D11 D10 D9 D8 L_ED D6 D5 D4 D3 D2 D1 DO a nme Reserved Q1 to Q4 behavior for bus interruption A B and Z counter broken wire detect 0 active default 1 not active for use with encoders with 24 VDC single ended signals 20 67 Width 178 mm Height 216 mm Counter Configuration 4 2 2 Output Word 4 The following counter 2 functions are specified through output word 4 m The significance of the parameters transferred through words 7 and 8 is determined by the command data code numbers DO D3 m D4 D5 and D6 reserved D7 specify counter 2 behavior for counter input line breakage Output configuration for the Q3 discrete output D8 D11 Output configuration for the Q4 discrete output D12 D15 Q4 output Q3 output output configuration output configuration Command data code numbers A A A N N fe N Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Signal D15 D14 D13 D12 D11 D10 D9 D8 LED D6 D5 D4 D3 D2 D1 DO ml Reserved A B and Z counter broken wire detect 0 active default 1 not active for use with encoders with 24 VDC single ended signals 68 20 Counter Configuration 4 2 3 Command Data Code Numbers Output words 3 4 bits 0 4 By making use of the cod
48. 2 2 8 2 2 9 2 2 10 Discrete Counter Control Inputs I1 16 The discrete inputs counter enable accept preset value and hold current count are only effective in combination with the corresponding software signals Note The counter inputs can be configured to operate with and without a filter for 5 VDC and 24 VDC signals Filter activation employed for mechanical contacts reduces the counting frequency max 20 kHz Discrete Counter Outputs Q1 Q4 The discrete outputs can be operated in two fashions m through counter operations forcing discrete outputs via output words 1 2 bits 1 7 within the configuration tool possible at any time Output activation functions are determined upon counter configuration refer to Chapter 4 2 4 page 71 Channel Specific Error Messages The user can obtain detailed references to the type of error reported at the counter input through the error word These can be Faults with the transmitter supply voltage Overshooting or undershooting of the measurement range Faulty transmitter Faulty transmitter connection These errors are reported through the input words refer to Chapter 5 Counted Values and Status Information 20 Width 178 mm Height 216 mm 19 Operating Mode Descriptions 2 2 11 Preset Value Acceptance Preset Mode The counter can be loaded with a freely definable value from the PLC with the preset value Preset value operation is
49. 330 01466 00 Width 178 mm Height 216 mm Modicon TSX Momentum 170 AEC 920 00 I O Base with 2 High Speed Counters User Manual 870 USE 008 00 7 99 GROUPE SCHNEIDER E Mein Gein B hbr Square D E Tamer nnou Data Illustrations Changes All data and illustrations are not binding In line with our policy of continuous product development we reserve the right to alter products without notice Should you have improvements suggestions or possibly noticed errors in this publication we d like to hear from you A user commentary form is provided on the last pages of this document Training Schneider Electric offers specialized training courses designed specifically to impart supplemental system knowledge Hotline Refer to the Technical Support Center addresses at the end of this publication Trademarks The names used for the Schneider Electric products in this manual are in general trademarks of Schneider Electric Other product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged Microsoft MS DOS and Windows are registered trademarks of Microsoft Corporation IBM is a registered trademark of International Business Machines Corporation Intel is a registered trademark of Intel Corporation Copyright No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or distributed in any form or by any means
50. 400 104 0 400 105 300 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 102 300 103 803 hex 300 104 300 105 300 106 300 107 300 108 a 115 Width 178 mm Height 216 mm Application Examples Step 5 Enable the Counter via Software Enable the preset bit and the counter enable bit with the output word 1 All other entries stay unchanged Output word Entry 400 101 1203 hex 400 102 0 400 103 A083 hex 400 104 0 400 105 300 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 1A00 hex 300 102 300 103 803 hex 300 104 300 105 300 106 300 107 300 108 116 Application Examples Step 6 Set the Count Value to the Preset Value Set the count value to the preset value This is done by a positive edge on the digital input 1 The input word 300 105 feeds this value back Output word Entry 400 101 1203 hex 400 102 0 400 103 A003 hex 400 104 0 400 105 300 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 9A00 hex 300 102 300 103 4803 hex 300 104 300 105 100 dec 300 106 300 107 300 108 Step 7 Enable the Counter via Hardware Enable the counter by setting the digital input 2 input word 1 5A00 input word 3 2803 Every pulse on the count input 1 gets counted as long as the digital in
51. D a A1 B1 Z1 C1 ee o A2 B2 Z2 C2 1L 1L Q1 Q2 Q3 Q4 1 See o o I o D D D D 3 A1 Bi Z1 2M 21 A2 21 Width 178 mm Height 216 mm 137 Application Examples B 5 2 Solution The parameterization of the counter is done in four steps 1 Set counter mode and activate the 20 kHz input filter 2 Configuration of output 3 as frequency output to be counted 3 Transfer of the time base setting full period and disable of the broken wire detection 4 Enable the counter via software cS Note We use a 24 V single ended pulse encoder This means that we do not connect the terminal 2 and 3 of the encoder interface The counter then generats a broken wire signal bit 5 in word 1 in this mode To supress this signal we have to disable the broken wire detection step 2 These steps are described on the following pages 138 21 Application Examples Step 1 Set counter mode and activate the 20 kHz input filter Counter mode 9 and the 20 kHz filter are configured in output word 1 Output word Entry 400 101 908 hex 400 102 400 103 400 104 400 105 400 106 400 107 400 108 o 0 00 0 0 0 Input word Counter feedback 300 101 220 hex 300 102 300 103 800 hex 300 104 300 105 300 106 300 107 300 108 2
52. Make sure that a value gt 0 is entered into output word 5 before entering the ratio no B for a frequency output Otherwise the value 0 will be overtaken and the output will be switched off Changes for the period definition and or time base are overtaken after a positive edge on the counter enable bit this is bit 1 of output word one Changes of the frequency on output 1 can be performed directly without a positive edge on the counter enable bit 152 21 Index Index and keyword register are here 20 Breite 185 mm Hohe 230 mm 153 Index 154 20 Numbers 170 AEC 920 00 Technical Specifications 52 170 AEC 920 00 Module Description 37 5 VDC 24 VDC Counter Inputs 16 A A_1 A_2 89 Absolute Encoder 32 Absolute Encoder Command Data 84 Absolute Encoder Cut Off Frequencies 44 Absolute Encoder Functional Diagram 35 Absolute Position Sensing 12 Actual Values for Counters 1 and 2 92 AEC 920 00 Operating Modes 14 C Capture 59 Capture Function 17 Channel Specific Error Messages 19 CHI_B 89 CLOA 70 Clock Output 10 Code Number for Lower Software Limit Switch 69 Code Number for Modulo Value 69 Code Number for Operating Mode 8 Pulse Counter with Time Base 69 Code Number for Preset Value or SSI Offset Value 69 Code Number for Pulse Width 69 Code Number for Threshold Value 1 69 Code Number for Threshold Value 2 69 Code Number for Time Base
53. actices and Examples 0 00 cece eee cece eee eee 45 LED Status Display a as aa aa oo Wet ee 51 Technical Specifications TR cece cece teen eens 52 Counter Configuration 0 e x x x x eee eee eee nun 57 Configuration of Output Words 1 and 2 2 cece eee eee es 58 Software Enable s and Filter Activation Output words 1 2 bits 0 4 59 Force the Discrete Outputs Output words 1 2 bits 4 7 205 60 Operating Mode Bits 8 11 output words 1 2 2 000 eee eee 61 Preset Modes Output words 1 2 bits 12 14 2 eee eee 62 Counting Direction Reversal 000 c eee cnet e eee teens 63 Preset Value Acceptance for Short Cams ccc cece cence eee 65 Preset Value Acceptance for Long Cams cece eee eee eens 66 Configuration of Output Words 3 and 4 cece eee eens 67 QUTDUE WOES 382 anreisen ih 67 STT ep a Ts E te ee ee re os Moat crepe 68 20 Contents 4 2 3 Command Data Code Numbers Output words 3 4 bits 0 4 69 4 2 4 Discrete Output Configuration Output words 3 4 bits 8 15 71 4 2 5 Timing Diagrams for Discrete Output Operation seen 73 4 3 Code Numbers and Meaning of the Parameters Output Words 5 6 and 7 8 81 4 4 Command Data Format 20 c cece nee n eee ee enes 83 4 4 1 Incremental Encoder Command Data cece cece eee eee 83 4 4 2 Absolute Encoder Command Data 0c
54. and Counted Values 5 1 1 Error Bits Low Byte Input words 1 2 bits 0 7 The following errors can be reported with these bits DO ME 1 The module has not been configured i e there has been no valid operating mode conveyed This bit is set after a HW or SW reset D1 PS E 1 Power supply to the discrete outputs or sensors is absent D2 OE 1 A short circuit or overload has occurred on the discrete outputs D3 COR E 1 The maximum permissable counting range has been exceeded The bit can only be reset by a 0 gt 1 edge of the E C SW enable bit This function is inactive for absolute encoders D4 SOR_E 1 A SW limit switch setting has been exceeded The discrete outputs are disabled by the error message Once the counted value is again within the SW limit switch values outputs assume their former state and the SOR_E bit is reset DB lt L E 1 Broken wire has occurred on the A B or Z counter inputs Only the A counter input of absolute encoders is monitored D6 WD_E 1 The time monitoring for encoder absolute data transfer has tripped This fault occurs for broken wire or with erroneously parameterized encoder resolution The bit can only be reset by a 0 gt 1 edge of the E C SW enable bit 20 Width 178 mm Height 216 mm 87 Status Information and Counted Values D7 P_E 1 Faulty counter 1 parameterization Causes might be An unauthorized operating mode 3 or B One channel is
55. applications that must execute in order to achieve a certain product function 20 Info Related Documents This symbol indicates manuals or other sources which elaborate on the addressed topic in more detail Related Documentation Title Order No UO Module Bases for TSX Momentum User Manual 870 USE 002 00 Interbus Communication Adapter 870 USE 003 00 Profibus DP Communication Adapter 870 USE 004 00 FIPIO Communication Adapter 870 USE 005 00 Modbus Plus Communication Adapter 870 USE 103 00 ControlNet Communication Adapter 870 USE 007 00 Ethernet Communication Adapter 870 USE 112 00 20 3 Breite 178 mm Hohe 216 mm Info 20 Introduction 1 The 170 AEC 920 00 I O base is a high speed counter module for the TSX Momentum family Together with a communications adapter or processor adapter it comprises a fully functional module The 170 AEC 920 00 principles of operation are described in this document Introduction Chapter 1 Operating mode descriptions Chapter 2 170 AEC 920 00 I O base hardware description Chapter 3 Counter configuration Chapter 4 Status information and counted values Chapter 5 DFB parameterization Appendix A l Internal adapter 7 connector ATI PAH Adapter fixation point u A and ground contact hs SEN LED status display Terminal
56. ber 128 B 5 Example 5 Period Meter Mode 9 with internal Time Basis 136 B 5 2 5 SOIG aat ae ak anna Guha tide trades ee gue eier 138 B 6 Example 6 Frequency Meter Full Period with Internal Time Base Mode A 0 0 e ec ee nennen nn 144 Index ios seis 5a cele ae Le 153 20 V Breite 178 mm H he 216 mm Contents VI 20 Info il Caution A The relevant regulations must be observed for control applicatons involving safety requirements For reasons of safety and to ensure compliance with documented system data repairs to components should be performed only by the manufacturer 20 Breite 178 mm Hohe 216 mm Info q OP 4 Why ZN Example Terminology Note This symbol emphasizes very important facts Caution This symbol refers to frequently appearing error sources Warning This symbol points to sources of danger that may cause financial and health damages or may have other aggravating consequences Expert This symbol is used when a more detailed information is given which is intended exclusively for experts special training required Skipping this information does not interfere with understanding the publication and does not restrict standard application of the product Tip This symbol is used for Tips amp Tricks This symbol emphasizes the begining of an example Proceed as follows This marks the beginning of a series of
57. block to be transferred tot_blk INT Number of data blocks to be transferred par_arr 31 Word 31 word data structure array data block word 1 code number word 2 command data value low word word 3 command data value high word cS Note The par_arr data structure consists of 10 data blocks Three words belong to each data block the code number command data value low word and command data value high word Example Example first_bl 3 tot_blk 2 This means that the data blocks 3 and 4 of the par_arr data structure will be transferred i e words 7 through 12 20 99 Width 178 mm Height 216 mm DFB Parameterization Table 8 DFB outputs Outputs Type Function Start4x 9 Word array First address of the 8 output words status Byte High byte of input word 1 or 2 status bits error Byte Low byte of input word 1 or 2 error bits SratioNo Byte Returned code numbers failure hex 1F Q_1_3 Bool Q1 resp Q3 output state Q24 Bool Q2 resp Q4 output state REF Bool The preset value was registered ECPP Bool Hold current count HW amp counter hold SW enable s ECP Bool Counter enabled PP Bool Accept preset value HW amp counter preset SW enable s RCVA Bool First counting cycle is complete ACT_VAL DINT Actual or held value p_error Bool Transmission error wrong value type sent ready Bool Data transmission indicator 0 transfer is in
58. cece annarra 84 Chapter 5 Status Information and Counted Values 5 85 5 1 Status and Error Bits Input Words 1 and 2 2 cece eee eee ee eee 86 5 1 1 Error Bits Low Byte Input words 1 2 bits 0 7 eee eee eee eee 87 5 1 2 Status Bits High Byte Input word 1 2 bits 8 15 08 89 5 2 Status Return Information Words 3 and 4 0 eee eee ee eee 90 5 2 1 Returned Code Number Low Byte Input words 3 4 bits DO D3 91 5 2 2 Reported Status High Byte Input words 3 4 bits 8 15 22 2 2 91 5 3 Actual Values for Counters 1 and 2 Input Words 5 6 7 and 8 92 5 3 1 Current Values for Incremental Encoders eee e eee eee 92 5 3 2 Current Values for Absolute Encoders Input words 5 6 7 and 8 93 Appendixes uns ea we nas nce tea we 95 Appendix A DFB Parameterization xe x x x x x x x x x e K K K eee eee eee 97 AST DFB lt eie cs 22 a ae HI a 98 Appendix B Application Examples cx x x x e c x x x e K ee e eee eee eee 101 B 1 Example 1 Up Counter with 24 Vdc Pulse Encoder Mode 2 102 B 2 Example 2 Up Counter with 24 Vdc Pulse Encoder and Preset Value Mode 2 0 cece eee ee ee ene eens 109 B 3 Example 3 Up Counter for 24 VDC Pulse and Internal Pulse Generator Mode 21 0 0 c cece ete eens 118 B 4 Example 4 Pulse rate Counter Full Period with external Time Base Mode 8 1 en ioe TRE ea o
59. d twisted pair cable with a 0 22 mm AWG 24 minimum conductor cross section for all counter signal wiring Ground the cable shield at both ends m Under the assumption that a common earth is applied this I O base s count signals can be connected to multiwire twisted pairs cable which is also carrying the encoder supply m t should be taken into account for the encoder supply mainly for 5 VDC that a voltage drop of about 0 35 VDC results for an encoder current consumption of 100 mA a wire cross section of 1 mm AWG 17 and 100 m cable length m Separate the encoder cable from power lines or similar sources of electrical disturbances at best a clearance gt 0 5 m To attain full electrical isolation the power for transmitters and peripherals should be drawn from separate sources 5 VDC incremental encoder connection example counter 1 Incremental encoder Terminals or DIN connector Momentum terminals by row 4 3 2 1 Al A1 Bi Bi Z1 Zi 2L 2M This ground connection is to be executed exactly as shown should the incremental encoder have no earth ground connec tion of its own 20 45 Width 178 mm Height 216 mm 170 AEC 920 00 Figure 4 Pulse generator 5 VDC wiring example Return oo Counter 1 Counter 2 Discrete inputs jaye A A A gt gt f N 4 R Z N tt NN Al Bi Z1 C1 A2 B2 Z2 C2 1 2 13 4 15 I6 M L 1 La a D D D D D D D D D D D L 3
60. d 6 for counter 1 and 7 for 8 for counter 2 The resolution offered m for 25 clock cycles 25 bit unsigned i e from 0 to 33 554 431 m for 24 clock cycles 24 bit unsigned i e from O to 16 777 215 m for 12 clock cycles 12 bit unsigned i e from 0 to 4 095 Input words 5 7 12 bit resolution Bit 15 14 13 12 11 109 8 7 6 5 4 3 2 1 0 Actual or held value Input words 6 8 a Wes resolution Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 X v Actual or held value Unused 25 bit resolution 20 93 Width 178 mm Height 216 mm Status Information and Counted Values 94 20 Appendixes The following appendixes provide additional information which may be helpful 20 Breite 178 mm Hohe 216 mm 95 96 20 DFB Parameterization A The AEC DFB is a 170 AEC 920 00 module aid to simple Concept configuration from version 2 2 A DFB block is required each counter channel The DFB block transfers several types of command data stored in the par_arr data structure in succession and provides the counter s actual value The data transmission of bytes words and double words are started through a 0 gt 1 edge at the send input All bits are transferred cyclically 20 Width 178 mm Height 216 mm 97 DFB Parameterization A 1 DFB Block Figure 19 AEC function block 3 00001 gt 4 0000
61. d in the 870 USE 002 00 User Manual 20 Introduction 1 1 2 TSX Momentum Processor Adapters and Interface Adapters The processor adapter is comparable to a PLC s processor in which a user program executes controlling the I O points of a process It can be plugged to the I O base controlling its I O points as local I O The following processor adapters are available Table 2 TSX Momentum processor adapter Type Internal Flash RAM Clock speed Interfaces memory 171 CCS 700 00 64 KB 256 KB 20 MHz 1 x RS 232C 171 CCS 700 10 64 KB 256 KB 32 MHz 1 x RS 232C 171 CCS 760 00 256 KB 256 KB 20 MHz 1 x RS 232C 1 x I O bus 171 CCS 780 00 64 KB 256 KB 20 MHz 1 x RS 232C 1 x RS 485 171 CCC 780 10 512 KB 32 MHz 1 x RS 232C 1 x RS 485 171 CCC 760 10 512 KB 32 MHz _ Processor adapter functionality can be enhanced by an interface adapter The interface adapter is plugged directly between the processor adapter and the I O base Interface adapters offer m Time of day Battery backup Additional communications interfaces tS Note Interface adapters can only be utilized in combination with a processor adapter and not with a communications adapter 20 7 Width 178 mm Height 216 mm Introduction Three different interface adapters are available Table 3 TSX Momentum interface adapters Type Interfaces 172 JNN 210 32 Modbus port for either RS 232C or RS 485
62. de number 0 to F 011 11 A HW or SW reset must be carried out to disable the functions The 0 value is a permissable parameter and does not deactivate these functions 20 69 Width 178 mm Height 216 mm Counter Configuration Default Values If there are no command data defined no code number chosen in output words 3 4 bits 0 4 then the following command data default values are assigned Function Default values Preset value or SSI offset value 0 Threshold values 1 and 2 Inactive Upper and lower software limit switches Inactive Pulse width of discrete outputs in ms Value 0 no output pulses Modulo value Value 0 function inactive Period and frequency meter Without time base Pulse counter mode Full period Pulse counter with time base in ms Without time base Transmitter line breakage monitoring Active Q discrete outputs Inactive D5 output words 3 4 Bit D5 is not currently used D6 CLOA output words 3 4 This bit determines whether after an interruption of communications the outputs are to be disabled CLOA 0 or further operated by the module CLOA 1 This function can only be parameterized in the counter 1 output word but is effective for both counter channels 70 20 Counter Configuration D7 L_ED output words 3 4 The open circuit monitoring of the counter inputs can be disabled with this bit The meanings are 0 open c
63. e E_P bit word 1 2 bit 0 In order to displace the encoder s absolute value to the machine zero point the negatively signed current actual position is transferred to the encoder as offset Through the addition of absolute value and offset carried out within the module the actual value is set to zero SSI Serial synchronous Interface Absolute position value data transfer begins with the most significant bit MSB and in sync with a counter provided clock output The data word length may be 12 bit for encoders with a single track single turn and 24 or 25 bit for dual track encoders multi turn An evaluation of parity or power failure bits is not foreseen 20 Width 178 mm Height 216 mm 33 Operating Mode Descriptions Clock Cycles for the SSI Data Format nxT S BEE T 4 microseconds C counter ii output clock i A ot n X nt X n 2X n 3 3 X 2 X 1 i data MSB N LSB t Each cycle edge triggers transfer of a single data bit The 250 kHz clock frequency is dictated by the module Clock and data signals are at a high level when idle The current measured value is latched through the first falling edge Data transmission begins with the first rising edge The data signal output remains low after data word transfer until the absolute encoder is ready to provide a new measured value t This latency time
64. e numbers different command data types can be transferred to the module The functions are identical for output words 3 and 4 whereby the discrete outputs apply to the respective counter In detail these are Code 4 3 2 1 0 Function number Hex 0 O 0 0 0 O No code number selected Hex 1 O 0 0 0 1 Code number for preset value or SSI offset value Hex 2 O 0 0 1 0 Code number for threshold value 1 Hex 2 O 0 0 1 1 Code number for threshold value 2 Hex 4 O 0 1 0 O Code number for upper software limit switch outputs are disabled when counting pulses gt value Hex B O 0 1 0 1 Code number for lower software limit switch outputs are disabled when counting pulses gt value Hex 6 O 0 1 1 0 Code number for counter 1 and 2 discrete output Q pulse width in ms Hex 7 O 0 1 1 1 Code number for modulo value of repetitive counters function disabled by modulo value 0 Hex B O 1 0 0 O Code number for time base of counter operation mode period meter Mode 9 Output words 1 2 bits 8 11 Hex 9 O 1 0 0 1 Code number for time base of counter operation mode frequency meter Mode A Output words 1 2 bits 8 11 Hex A O 1 0 1 0 Code number for operating mode 8 pulse counter with time base Output words 1 2 bits 8 11 Hex B O 1 0 1 1 Code number for time base in ms of half period pulse on Q1 Q3 discrete outputs Hex C O 1 1 0 O Reserved Hex D O 1 1 0 1 Reserved corresponds to co
65. edge Entry also requires the SW enable bit E_P to be set Note Subsequent zero pulses have no effect The following timing diagram explains counter setting to the preset value with the long cam signal A counter input B counter input N 1 Counted value counting direction Down counting Up counting Z counter input T T zero pulse Short cam aie 11 14 SW enable E_C Preset value Time 66 20 Counter Configuration 4 2 Configuration of Output Words 3 and 4 Output word 3 specifies the following functions for counter 1 output word 4 provides similiar functionality for counter 2 4 2 1 Output Word 3 The following counter 1 functions are specified through output word 3 The significance of the parameters transferred through words 5 and 6 is determined by the command data code numbers DO D3 m D4 and D5 are reserved D4 and D5 are reserved m D6 D7 specify module behavior for bus interruption and counter input line breakage Output configuration for the Q1 discrete output D8 D11 Output configuration for the Q2 discrete output D12 D15 Q2 output Q1 output configuration configuration Command data code numbers A A A C DA S C S Bit 15 14 13 12 11 10 9 8 7 6 5 4 3
66. eed counting procedures Data exchange with the PLC is accomplished through contiguous word registers eight IN and eight OUT Output words The configuration parameterization and value specification takes place through the output words Input words The input words contain the status information error messages and counted values for each counter 20 39 Width 178 mm Height 216 mm 170 AEC 920 00 3 3 1 Output Words The eight counter output words with the following configuration data are sent to the I O base Address 4x Output word 1 15114 13 12 11 10 9 8 7 6 15 4 3 21 1 0 Counter 1 configuration Address 4x 1 Output word 2 15 114 13 12 11 10 9 8 7 6 15 4 3 1 2 1 1 1 0 Counter 2 configuration Address 4x 2 Output word 3 15 14 113 12 11 10 9 8 7 6 5 4 3 2 1 0 Configuration of the Q1 Q2 discrete Code numbers for counter 1 command outputs for counter 1 data and broken wire detect Address 4x 3 Output word 4 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Configuration of the Q3 Q4 discrete Code numbers for counter 2 command outputs for counter 2 data and broken wire detect Address 4x 4 Output word 5 low word 15 114 13 12 11 10 9 8 7 6 5 4 3 21 1 0 Counter 1 command data low part
67. elegram Gn G0 back to the 170 AEC 920 00 see Figure 1 The length n of this transferred data stream is directly dependent upon the encoder resolution resp data format and can be parameterized through configuration words The resolution of standard encoders is n 24 Figure 1 SSI clock and data telegram oa 10 ee eee ee n OCK E S TE gE pata ee es ar a ee Gray code Van XGntXon 2X X X X XaXao This data transfer takes place via a 4 wire two each for clock and data serial synchronous interface SSI To safeguard data transmission signals are conveyed as RS 422 differential signals so that noise pulses can be recognized and common mode interference eliminated 12 20 Operating Mode Descriptions 2 A description of all valid operating modes operation forms in which the counter can operate can be found in the following chapter The operating modes for each counter are parameterized individually through the output words 1 and 2 refer to Chapter 3 3 1 on page 40 20 Width 178 mm Height 216 mm Operating Mode Descriptions 2 1 Overview of AEC 920 00 Operating Modes The following table provides an overview of the valid operating modes as defined in output words 1 and 2 bits 11 8 Operating mode Transmitter type Function 0 Channel not ready parameters not reset outputs 0 Pu
68. ence j a lt Half period gt 1 wer la i i in microsec alf period Note Half period means measurement of the input pulse sequence from one positive to the next negative edge 30 20 Operating Mode Descriptions 2 4 10 Operating Mode A Frequency Meter with 5 Time Bases In this operating mode the number of pulses per unit time is measured Different time bases can be selected in accord with the frequency to be measured Five internal time bases ranging from 0 1 ms through 1000 ms are available This operating mode is applied to measurements of process frequencies cS Note The time base is to be chosen such that the precision required is achieved and that there is no counter overrun within the measurement period Depending upon the process both full and half periods can be measured Full period means measurement of the input frequency from one positive time base edge to the next Half period means measurement of the input frequency from one time base positive to the next negative edge Frequency measurement over a full period A counter input 1 frequency to be measured i
69. er Full Period with Internal Time Base 24 VDC 24 VDC Return Return Counter 1 Counter 2 Discrete Counter Control Inputs Co K r N 4 N Al Bi Z1 C1 A2 B2 Z2 C2 N 2 18 4 15 l6 M L 1 o o o o o o 315 a a a a a a a a a a N mA flink A1 Bi Z1 C1 A2 B2 Z2 C2 1L 1L Q1 Q2 Q3 Q4 1M 1L oe 7 7 3 A1 B1 Z1 2M 2L A2 B2 Z2 2M 2L NM 1M IM 1M 1M 1M 2M 2L CCC o We 0 o jo o o oo 146 21 Application Examples B 6 2 Solution The parameterization of the counter is done in four steps 1 2 Set counter mode and activate the 20 kHz input filter Configuration of output 1 as frequency output to generate the frequency to be counted and disable of the broken wire detection Configuration of the internal time basis for frequency measuring Enable the counter via software Note We use a 24 V single ended pulse encoder This means that we do not connect the terminal 2 and 3 of the encoder interface The counter then generats a broken wire signal bit 5 in word 1 in this mode To supress this signal we have to disable the broken wire detection step 2 These steps are described on the following pages 21 Width 178 mm Height 216 mm 147 Application Examples Step 1 Set Counter Mode and Activate the 20 kHz Input Filter Counter mode A and the 20 kHz filter are config
70. er gate is open during the half or the full period There are 5 different time bases available with half or full period each So you have the choice between 10 different codes In this example the time base internally generated clock shall be 10 us The period to be measured is simulated by the digital output 3 frequency output with time base 50 ms This leads to the following settings m Counter 1 is configured as period meter Mode 9 m Time basis 2 10 ms full period Output 3 is frequency output with 50 ms time base and generates the Counter gate 50 ms on 50 ms off 100 ms gate time at full period cS Note In the operating mode Period meter the preset mode and the digital inputs are without function The digital outputs can be configured as frequency outputs only In this example we have 24 Vdc single ended signals That is why the 20 kHz filter has to be activated Because there are no signals connected to the counter inputs B and C broken wire detection must be disabled 136 z Application Examples Wiring Notes Output 3 to counter input A1 row 2 pin 15 to row 3 pin 1 A1 to return of digital outputs row 2 pin 1 to row 3 pin 11 1 kOhm resistor from output 3 to the return of the digital outputs recommended Figure 24 Wiring example 5 Period Meter Mode 9 with internal Time Basis Counter 1 A Discrete Counter Control Inputs C N Al Bi Z1 C1 m D ao
71. eset mode 2 Transfer of threshold value 1 configuration of output 1 and disable of the broken wire detection 3 Transfer of threshold value 1 configuration of output 2 4 Enable of the preset bit and the counter enable bit 5 Setting the preset input and the enable input These steps are described on the following pages cS Note We use a 24 V single ended pulse encoder This means that we do not connect the terminal 2 and 3 of the encoder interface The counter then generats a broken wire signal bit 5 in input word 1 in this mode To supress this signal we have to disable the broken wire detection step 2 104 21 Application Examples Step 1 Set Counter Mode and Preset Mode Counter mode 2 and preset mode 1 are set first This happens with the output word 1 Output word Entry 400 101 1200 hex 400 102 0 400 103 400 104 400 105 400 106 400 107 o 0 0 0 0 0 400 108 Input word Counter feedback 300 101 220 hex 300 102 300 103 800 hex 300 104 300 105 300 106 300 107 300 108 21 105 Width 178 mm Height 216 mm Application Examples Step 2 Transfer of Threshold Value 1 Configuration of Output 1 and Disable of Broken Wire Detection Next the threshold value 1 100 is transferred Simultaneously output 1 is configured output Mode 7 This happens with the output words 3 and 5 All other entries
72. i Count hold xu Counter enable N Accept preset value 1 A fast blow 5 VDC Encoder supply Incremental encoder 2L 48 20 170 AEC 920 00 Figure 7 Wiring for 24 VDC incremental encoder for tracks A B and Z 24 VDC 24 VDC Return Return Counter 1 Counter 2 Discrete counter control inputs a N C N f N Al Bl Z1 C1 A2 B2 Z2 C2 1 12 13 Di4 I I6 M L 1 D D D D D D D D D D D D D A1 B1 Z1 C1 A2 B24 Z2 HSS S C2 1L 1L Q1 o o o Q2 Q3 Q4 1M 1L oo Bi Z1 QM 2L A2 B2 Z2 m a a a 2M 2L 1M 1M 1M 1M 1M 1M 2M 2L o oF OF ofja o Count hold Counter enable Accept preset value Incremental encoder 1 A fast blow 24 V Encoder supply Note The wiring example relates to operating modes 3 4 and 5 20 Width 178 mm Height 216 mm 49 170 AEC 920 00 Figure 8 Wiring example for absolute encoder 24 VDC 24 VDC Return Return Counter 1 Counter 2 Discrete counter control inputs A A A 4 N L N A N Al Bi Z1 C1 A2 B2 Z2 C2 H 2 18 4 15 I6 M L o D D o o D D D D T A1 Bi1 Z1 C1 A2 B2 1L 1L Q1 Q2 Q3 Q4 1M 1L 2 a ojo o T oo x EN s o 2M 2L A2 B2 2M 2L 1M 1M 1M 2M 2L o o o
73. in ms 69 Code Number for Upper Software Limit Switch 69 Command Data Code Numbers 69 Command Data Format 83 Communications Adapters 6 Communications Interruption 70 Configuration 39 Configuration of Output Words 1 and 2 58 Configuration of Output Words 3 and 4 67 Connection of a 5 VDC Incremental Encoder 45 Continuous Counting 10 COR_E 87 Counted Values 85 86 87 Counter Configuration 57 58 59 Counter Hold 59 Counter Resolution 16 32 Counting Direction Reversal 63 Current Values for Absolute Encoders 93 Current Values for Incremental Encoders 92 D D_B 63 Data in Output Words 5 and 6 81 Default Values 70 DFB Block 98 DFB inputs 99 DFB outputs 100 DFB Parameterization 97 98 99 101 102 103 Differential Counter 25 Discrete Inputs 19 Discrete Output Configuration 71 Discrete Output Operation 72 Discrete Outputs 19 Down Counter 22 61 20 Breite 178 mm H he 216 mm 155 Index EI_F 59 Encoder Offset 33 EP_B 89 Error Bits Low Byte 87 Event Counting 10 Event Processing 18 F Force an Output 60 Frequency Measurement 10 Frequency Meter Time Base Code Number 69 Frequency Meter with 5 Time Bases 31 61 H Hold the Current Counted Value 17 l 11 14 89 12 15 89 13 16 89 Incremental Encoder 1 1 Logic 23 Incremental Encoder 1 4 Logic 23 Incremental Encoder RS 422 Wiring Example 48 Incremental Encoder Command Da
74. ircuit monitoring active 1 open circuit monitoring disabled In mode 1 and 2 up and down counter only the differencial 5 V inputs A and A are line fault detected In mode C D and E absolut encoder only the differencial 5 V inputs A and A are line fault detected In all other modes 4 5 6 7 8 9 A all differential inputs A B and Z are line fault detected If 24 V signle ended signals are used the line fault detection have to disabled or the error bits L_E have to be ignored If line fault detection is desired the unused differential inputs have to be connected to the 5 V encode supply Caution The L ED bit must be set for encoders with 24 VDC single ended signals disabling the open circuit monitoring 4 2 4 Discrete Output Configuration Output words 3 4 bits 8 15 The discrete outputs can be assigned various functions each output having 4 configuration bits for this purpose Q1 output of counter 1 bits 8 11 in word 3 Q2 output of counter 1 bits 12 15 in word 3 Q3 output of counter 2 bits 8 11 in word 4 Q4 output of counter 2 bits 12 15 in word 4 20 71 Width 178 mm Height 216 mm Counter Configuration Discrete Output Functions Output words 3 4 bits 8 15 The functions contained in the following table can be assigned to the discrete outputs Bits 11 Function control of counter 1 Q1 Q3 discrete outputs Bits 15 13 12 Function control of counte
75. is blinking 500 ms on 500 ms off Output word Entry 400 101 808 hex 400 102 0 400 103 D8B hex 400 104 DOB hex 400 105 5 dec 400 106 0 400 107 500 dec 400 108 0 Input word Counter feedback 300 101 200 hex 300 hex 300 102 300 103 80B hex 90B hex 300 104 B hex 10B hex 300 105 300 106 300 107 300 108 cS Note Step 1 3 may be combined to one step 21 133 Width 178 mm Height 216 mm Application Examples Step 4 Transfer of the Setting Full Period This is done with the output words 3 ratio no A and 5 value 1 Output word Entry 400 101 808 hex 400 102 0 400 103 D8A hex 400 104 DOB hex 400 105 1 dec 400 106 0 400 107 500 dec 400 108 0 Input word Counter feedback 300 101 200 hex 300 hex 300 102 300 103 80A hex 90A hex 300 104 B hex 10B hex 300 105 300 106 300 107 300 108 134 21 Application Examples Step 5 Enable the counter via software Set the counter enable bit Bit 1 in output word 1 Output word Entry 400 101 80A hex 400 102 0 400 103 D8A hex 400 104 DOB hex 400 105 1 dec 400 106 0 400 107 500 dec 400 108 0 Input word Counter feedback 300 101 A00 hex BOO hex 300 102 300 103 880A hex 890A hex 300 104 B hex 10B hex 300 105 100
76. l when counter enabled and counted value lt threshold value 2 The output is set to 0 signal when the counted value gt threshold value 2 Hex A 1 0 1 O The output is set to 1 signal when the counted value gt threshold value 1 The output is set to 0 signal when the counted value gt threshold value 2 Hex B 1 0 1 1 initiate a pulse when counted value threshold value 1 pulse length is definable 1 2 EXP 32 ms Hex C 1 1 0 0 Initiate a pulse when counted value threshold value 2 pulse length is definable 1 2 EXP 32 ms Hex D 1 1 0 1 Frequency output only Q1 Q3 discrete outputs a frequency must also be specified through the code number B Hex E 1 1 1 0 Reserved value same as 0 hex no acknowledgement to the Hex E 1 1 1 1 communications adapter 72 20 Counter Configuration 4 2 5 Timing Diagrams for Discrete Output Operation Various output configurations for the Q1 Q3 and Q2 Q4 outputs can be found in the following timing diagrams 1 hex and 2 hex output behavior The Q1 Q3 output is set to 1 signal and remains stored when the counted value threshold value 1 1 hex The Q2 Q4 output is set to 1 signal and remains stored when the counted value threshold value 2 2 hex Figure 12 Function 1 hex and 2 hex Counted value A Threshold valie2 e e S Sa eS ev SA Ss Sees NSS Sees Threshold value
77. lse Down counter Pulse Up counter Corresponds to operating mode 0 Inc Up down counter position sensing x 1 counter Inc Up down counter position sensing x 4 counter O a R O Pp Pulse Differential counter A counter input upcount B counter input downcount Pulse Up down counter A counter input up down B counter input direction 1 up 0 down Pulse Pulse counter with time base e g for rotary speeds flow rates etc a with an external clock as time base to the B counter input or b discrete output Q as time base to the B counter input Pulse Period meter with 5 time bases for full or half periods full period 0 without time base 1 1 2 10 3 100 4 1 000 5 10 000 microsec half period 9 1 A 10 B 100 C 1 000 D 10 000 microsec 14 20 Operating Mode Descriptions A Pulse frequency meter with 5 time bases for full or half periods full period 0 without time base 1 0 1 2 1 3 10 4 100 5 1 000 ms half period 9 0 1 A 1 B 10 C 100 D 1 000 ms B Corresponds to operating mode 0 C Abs Position sensing with single turn encoders SSI 12 bit resolution D Abs Position sensing with multi turn encoders SSI 24 bit resolution E Abs Position sensing with multi turn encoders SSI 25 bit resolution F Software reset This always resets both counters regardless of
78. lue acceptance requires the E_P SW enable bit and an 0 gt 1 edge at the 11 l4 hardware input Di lt E C 1 Counter enable To be enabled the counter requires the E_C SW enable bit and a 1 signal on the 12 15 hardware input D2 E_CP 1 Counter hold enable capture Holding of the counted value given to the PLC requires the E_CP SW enable bit and an edge at the 12 16 hardware input This held counted value continues to be transferred to the PLC as the actual value until the E_CP bit is reset by software Transfers of the counter s true current actual value are reinstated after reset Pulses at the counter inputs continue to be registered internally by the counter during counter hold enable D3 EL F 1 Counter input filter activation Input filter activation limits the counter input frequency to lt 20 kHz cS Note Filter activation is necessary to suppress noise disturbances with 24 VDC single ended pulse generators 20 59 Width 178 mm Height 216 mm Counter Configuration Force the Discrete Outputs Output words 1 2 bits 4 7 The discrete outputs can be turned on or off forced by the PLC independent of the assigned counter function D4 Q1_F 1 Force the Q1 discrete output D5 determines the Q1 output state D5 Q1 This bit contains the desired force state for Q1 discrete output 0 Output inactive 1 output active 24 VDC D6 Q2 F 1 Force the Q2 discrete output D7 determines the Q2 output
79. lues 5 1 Status and Error Bits Input Words 1 and 2 Through the status bits the counter is able to provide error messages and the current states of hardware inputs and associated software enable s Counter 1 status information and error messages are transferred to the PLC in input word 1 The individual bits have the following significances Counter 2 status information and error messages are transferred to the PLC in input word 2 The significance of status and error bits correspond to word 1 High byte status Low byte errors A A C NCO Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 1 0 a RE Mr eel Iaa H IR a TENI a Bee 5 S a O ja lt a Q cc x O 100 Signal m m O O O DL 3 S es p 6 Ko o Ka c o aa B a a 22 8s 3 8 8 8 5 8 5 5 S g 8 S amp a 3 a ss 8s 8 5 oo gt ze amp 2 2 2 z3 2 2 8 2 E 8 3 5 55 E SE SE H a D w FT o 2 53 S e ge g ya a S S S 5 wo gB oe 56 6 Ss 53 5 E 5 3 5 Z E ZS 3 o S 8 BF S B Dr ay aa o ao A ARS ee S v O O m 2 x g S Cc Cc ro Cc a T O E G a 3 i Q 2 9 5 g 2 8 Ke E amp 2 jr 2 pan 02 v E 5 2 BE 2 S E L jo ro 3 D S 3 ra R a eo 3 u 2 fo O fo O a 2 8 3 0 o Q o 2 o Z gt a D G gt 9 O o lt 3 oa 86 20 Status Information
80. me base full period 1 0 1 2 1 3 10 4 100 5 1 000 in ms half period 9 0 1 A 1 B 10 C 100 D 1 000 in ms Transfer of any other values sets the P_E bit and returns code number 1F Hex A Full half period selection for pulse counter with time base operating mode 8 as found in output word 1 2 bits 8 11 0 unauthorized sets the P_E bit 1 full period 2 half period at the corresponding Bx counter input Hex B Clock output time base 1 2 EXP 32 ms only half period pulses on Q1 Q3 discrete outputs Hex C Reserved Hex D to F Reserved values corresponds to code number 0 Counter 1 code numbers are in output word 3 82 20 Counter Configuration 4 4 Command Data Format 4 4 1 Incremental Encoder Command Data The command data resolution is 24 bit sign 16 777 216 to 16 777 215 Modulo values only have a 24 bit unsigned resolution 0 to 16 777 215 Output words 5 7 Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Counter 1 2 command data Laal Output words 6 8 Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 E N Counter 1 2 command data Sign Not usable 20 83 Width 178 mm Height 216 mm Counter Configuration
81. n output word 4 HEX 0 20 Width 178 mm Height 216 mm 81 Counter Configuration Code number refers to register 3 4 bits 0 4 Function This data is entered into output words 5 6 and 7 8 Hex No command data value selected Hex Preset value 24 bit sign or SSI offset value max encoder resolution Hex Threshold value 1 24 bit sign for inc encoder 25 bit for abs encoder Hex Threshold value 2 24 bit sign for inc encoder 25 bit for abs encoder gt oIm o Hex Counter 1 upper software limit switch 24 bit sign for inc encoder 25 bit for abs encoder Hex 5 Counter 2 lower software limit switch 24 bit sign for inc encoder 25 bit for abs encoder Hex 6 Q1 Q2 discrete outputs pulse width 1 2 EXP 32 ms Hex 7 Event counter repetitive counter modulo value max 24 bit function disabled by modulo value 0 Hex 8 Time base for period meter counter operation mode operating mode 9 as found in output word 1 2 bits 8 11 0 without time base full period 1 1 2 10 3 100 4 1 000 5 10 000 in microsec half period 9 1 A 10 B 100 C 1 000 D 10 000 in microsec Transfer of any other values sets the P_E bit and returns code number 1F Hex 9 Time base for frequency meter counter operation mode operating mode A as found in output word 1 2 bits 8 11 0 without ti
82. ncoder 36 Software Enable s 59 Software Limit Switch 16 Software Reset 61 SOR_E 87 SSI 32 Status and Error Bits Words 1 and 2 86 Status Bits High Byte 89 Status Information 85 86 87 Status Return Information Words 3 and 4 90 T Technical Specifications 170 AEC 920 00 52 Terminal Block 38 Terminal Block Mapping 43 Terminal Block Selection 38 TSX Momentum Interface Adapter List of available Models 8 TSX Momentum Processor Adapter List of available Models 7 U Up Counter 22 61 Up Down Counter 61 Up Down Counter 1 1 Logic 61 Up Down Counter 1 4 Logic 61 Up Down Counter with Change of Direction 25 Utilization 9 W WD E 87 Wiring 45 Wiring Example for Absolute Encoder with Actuators 50 Wiring for 24 VDC Pulse Generator Usage 49 20 Breite 178 mm Hohe 216 mm 157 Index 158 20
83. ncy Measurements In this operating mode frequencies of up to 200 kHz can be measured The time base can be varied in a range from 0 1 1000 ms Period Measurements In this operating mode the duration of a period can be measured In this case pulses are registered for the duration of the gate time Different time bases can be selected in accord with the period Five time bases ranging from 1us through 10 000 us are available Pulse Generator Pulses produced by the module can be output through the outputs Q1 counter 1 and Q2 counter 2 Pulse widths varying from 1 ms through 1000 s can be output refer to 2 4 8 10 20 Introduction 1 2 6 Incremental Position Sensing Position sensing through incremental encoders is performed according to a counting method Therefore the encoder must be recalibrated preset value acceptance after turn on or power failure For this reason the encoder delivers a reference signal zero pulse In order to distinguish the direction of rotation during forward or reverse travel the encoder provides two periodic square wave signals 90 degrees out of phase which are evaluated and appropriately counted by the AEC To safeguard data transmission at higher frequencies signals can also be conveyed as RS 422 differential signals so that disturbing pulses can be recognized and common mode interference eliminated This requires a total of 6 conductors for data transfer 2 for each of the 3 c
84. oad 0 1 ms max 0 gt 1 0 1 ms max 1 gt 0 Maximum switching cycles 1 000 h with inductive load 100 s with resistive load 8 s with 2 4 W bulb load Configurable functions Refer to Chapter 4 page 57 Clock Outputs for Absolute Encoders Output type 5 VDC differential RS 422 Output voltage of 1 gt 2 VDC signal Output current of 1 gt 20 mA signal Note An output load of at least 1 kOhm is necessary when the Q1 and or Q3 outputs are utilized for frequency output The output current of a shortenedoutput is limited to a nondestructive value The short circuit heats the output driver and the output will switch off The output will switch on again if the driver leaves the over temperature condition Ifthe short circuit still exists the driver will reach the over temperature condition again and will switch off again As long as an output is overloaded the green LED is on and the red LED is on 54 20 170 AEC 920 00 Potential isolation from one another and PE Fusing Discrete I O signals Counter inputs Clock outputs Supply voltage Internal age External 1L sensor and actuator supply External 2L encoder transmitter supply External L supply volt 500 VAC for 1 min 315 mA fast blow In accordance with the designed power consumption of the connected sensors and actuators
85. osition sensing with a single turn encoder can be found in the Appendix Operating Mode D Position Sensing with Multi Turn Encoders SSI 24 Bit Resolution The multi turn encoder with 24 bit resolution delivers 12 bit resolution per revolution 4096 pulses and can count through 4096 revolutions before overflowing The great advantage of absolute encoders is that the absolute position is available immediately upon turn on An example of position sensing with a multi turn encoder can be found in the Appendix Operating Mode E Position Sensing with Multi Turn Encoders SSI 25 Bit Resolution The multi turn encoder with 25 bit resolution delivers 13 bit resolution per revolution 8192 pulses and can count through 4096 revolutions before overflowing The great advantage of absolute encoders is that the absolute position is available immediately upon turn on An example of position sensing with a multi turn encoder can be found in the Appendix 36 20 170 AEC 920 00 Module Description 3 The 170 AEC 920 00 I O base can count pulse frequencies of up to 200 kHz To this end it is equipped with two hardware counters for counting pulse inputs each with discrete inputs for counter enable accept preset value and hold current count as well as two independent discrete outputs Module elements Internal adapter connector ATI Adapter fixation point and ground contact LED status display Terminal block
86. ounter Inputs 0 cee eens 16 2 2 3 Preset Value cine erate gud Bee eae ae el ne ee Dr 16 2 2 4 Software Limit Switch 0 eens 16 2 2 5 Hold the Current Counted Value Capture Function essa eus nauan 17 2 2 6 Event Processing 4 3 22 lem Owe oe De 18 2 2 7 Definition of Terms 0 2 0 2 eee ne eee ee teen eens 18 2 2 8 Discrete Counter Control Inputs 11 16 0 0 2 eee 19 2 2 9 Discrete Counter Outputs Q1 Q4 2 22 2222 nennen nennen 19 2 2 10 Channel Specific Error Messages ernennen nn 19 2 2 11 Preset Value Acceptance Preset Model Heer ee eee 20 2 3 Counter Channel for Counter Functions with Pulse Generators and Incremental Encoders se ss e e e e eee 21 2 4 Pulse Generator amp Incremental Encoder Modes eee eee 22 2 4 1 Operating Mode 1 Pulse Down Counter 2222222222 22 2 4 2 Operating Mode 2 Pulse Up Counter 00 0 cece eee eee 22 2 4 3 Operating Mode 3 Reserved Operating Mode 0 Equivalent 22 20 II Breite 178 mm H he 216 mm Contents 2 4 4 2 4 5 2 4 6 2 4 7 2 4 8 2 4 9 2 4 10 2 5 2 5 1 2 5 2 2 5 3 2 6 2 6 1 2 6 2 2 6 3 Chapter 3 Chapter 4 4 1 4 1 1 4 1 2 4 1 3 4 1 4 4 1 5 4 1 6 4 1 7 4 2 4 2 1 4 2 2 Operating Mode 4 Counting with x1 Logic Incremental Encoders 23 Operating Mode 5 Counting with x4 Logic Incremental Encoders 23 Operating Mode
87. ounter inputs Reference zero homing execution preset value acceptance Since the current actual position is lost with every power failure or at shut down the 170 AEC 920 00 must perform a reference zero preset value acceptance upon voltage recovery or turn on The encoder provides an appropriate reference signal zero pulse 7 different possibilities are made available to accept a preset value The acceptance of a preset value after every renewed enabling of the counter channel is necessary since the discrete outputs will not otherwise be serviced The reference point switch should be installed close to a hardware limit switch such that the reference point is always approached from one direction 20 Width 178 mm Height 216 mm Introduction 1 2 7 Absolute Position Sensing In absolute displacement measurement each position is allocated a distinct numeric value An absolute encoder performs this task These numeric values exist in the encoder as code patterns for instance on code disks in dual Gray or some other encoding The great advantage to this encoder style is that the absolute position is available immediately upon turn on Actual position determination is performed as follows The 170 AEC 920 00 requests the position value through a pulse sequence The first 170 AEC 920 00 clock signal latches the absolute position present in the encoder and starts its clock synchronous transfer as a serial data t
88. own rn En u 50 microsec 50 microsec min at 20 kHz min at 20 kHz 20 25 Width 178 mm Height 216 mm Operating Mode Descriptions 2 4 8 Operating Mode 8 Pulse Counter with Time Base Rotary Speeds This operating mode is suitable for the determination of speeds flow rates or revolutions Pulses during a selectable time base gate time are counted and saved Thereafter the counter is reset and the counting procedure starts once again The gate time can be controlled in two ways m an external clock signal or m an internal clock signal output through the Q1 or Q3 discrete outputs These outputs must be configured through output words 3 and 4 for frequency output function D In addition the frequency must be chosen through code number B The count interval is from the positive to the negative edge of the clock signal half period or from one positive edge to the next full period This is also parameterized through the output words 3 and 4 Note The discrete inputs counter enable accept preset value and hold current count are functionless in this operating mode Only the frequency output function is made available for the discrete outputs refer to 4 2 3 26 20 Operating Mode Descriptions Example 1 Pulse counting with an external clock signal e g 5 VDC level
89. parameterized for an incremental encoder the other for an absolute encoder An incorrect output configuration has been selected function E or F for Q1 Q3 output function D E or F for Q2 Q4 output A 0 time has been chosen with output function D for the Q1 Q3 frequency output An invalid command data code number D 1F has been selected A valid cycle duration mode has not been chosen code number A with an invalid value in operating mode 8 pulse counter with external time base A valid time base has not been selected code number 8 with an invalid value in operating mode 9 period meter A valid time base has not been selected code number 9 with an invalid value in operating mode A frequency meter 88 20 Status Information and Counted Values 5 1 2 Status Bits High Byte Input word 1 2 bits 8 15 The following status can be reported with these bits D8 A_1 A_2 1 The A1 A2 5 VDC resp A1 A2 24 VDC counter input is at 1 signal D9 CHL B 1 The counter has been properly configured i e both counters are initialized for either absolute or incremental encoders A 0 signal indicates an incorrect operating mode or differing encoder configurations D10 ECP B 1 The counter hold SW enable is set D11 EC B 1 The counter enable SW enable is set D12 EP_B 1 The counter preset SW enable is set D13 13 16 1 The Hold current count
90. put words 3 and 5 Note Change contents of register 400103 first before changing register 400105 contents Otherwise the threshold value 1 will be overwritten Output word Entry 400 101 1200 hex 400 102 0 400 103 AD83 hex 400 104 0 400 105 300 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 hex 300 102 300 103 803 hex 903 hex 300 104 300 105 300 106 300 107 300 108 124 21 Application Examples Step 5 Enable the Counter via Software Enable the preset bit and the counter enable bit with the output word 1 Output word Entry 400 101 1203 hex 400 102 0 400 103 AD83 hex 400 104 0 400 105 300 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 1B00 hex 1A00 hex 300 102 300 103 803 hex 903 hex 300 104 300 105 300 106 300 107 300 108 21 Width 178 mm Height 216 mm 125 Application Examples Step 6 Set the Count Value to the Preset Value Set the count value to the preset value This is done by a positive edge on the digital input 1 The input word 300 105 feeds this value back Output word Entry 400 101 1203 hex 400 102 0 400 103 AD83 hex 400 104 0 400 105 300 dec 400 106 0 400 107 0 400 108
91. put 1 is on The actual count value can be red from word 300 105 Output 2 goes on when the count value reaches the threshold value 1 and goes off when it reaches threshold value 2 Output 1 is always off With a positive edge on the digital input 1 you reset the count value to the preset value cS Note The firmware overtakes new preset values and new preset modes after a positive edge has been detected on bit E_P bit 0 of the 1st output word New threshold values are overtaken directly al 117 Width 178 mm Height 216 mm Application Examples B 3 Example 3 Up Counter for 24 VDC Pulse and Internal Pulse Generator Mode 2 B 3 1 Task Counter 1 as up counter Enable via hardware input 2 Reset preset count value via hardware input 1 positive edge Counter starts with count value 100 Start value of the counter is 0 Threshold value 1 is 200 Threshold value 2 is 300 Output 1 is frequency output with 250 ms on 250 ms off These pulses are to be counted Output 2 goes on when threshold value 1 is reached and goes off when threshold value 2 is reached 118 21 Application Examples Figure 22 Wiring example 3 Up Counter with 24 VDC Pulse Encoder and Internal Pulse Generator Counter 1 Counter 2 Counter Control Inputs A A A f N r N 1 N Al Bi Z1 C1 A2 B2 Z2 C2 HW 28 4 15 I6 M 1 o 0 o 0 o 0 a a a 24 VDC 24 VDC Return Return
92. r 2 Q2 Q4 discrete outputs 1 1 Hex 0 O 0 0 0 Outputs remain at 0 signal 0 Hex 1 0 O 1 The output is set to 1 signal and remains set when the counted value threshold value 1 Hex 2 O 0 1 O The output is set to 1 signal and remains set when the counted value threshold value 2 Hex 23 O 0 1 1 The output is set to 1 signal at counter enable and returns to 0 when the counted value threshold value 1 retentive Hex d O 1 0 0 The output is set to 1 signal at counter enable and returns to 0 when the counted value threshold value 2 retentive Hex B O 1 0 1 The output is set to 1 signal when the counted value threshold value 1 retentive The output is set to 0 signal when the counted value threshold value 2 retentive Hex 6 JO 1 1 0 The output is set to 1 signal when the counted value gt threshold value 1 The output is set to 0 signal when the counted value lt threshold value 1 Hex 7 JO 1 1 1 The output is set to 1 signal when counter enabled and counted value lt threshold value 1 The output is set to 0 signal when the counted value gt threshold value 1 Hex 8 1 000 The output is set to 1 signal when the counted value gt threshold value 2 The output is set to 0 signal when the counted value lt threshold value 2 Hex 9 1 0 0 1 The output is set to 1 signa
93. rating Mode 2 Pulse Up Counter In this operating mode all A input pulses count up starting from a preset value default 0 The B input is functionless Pulse generators with both 5 VDC differential output RS 422 and 24 VDC single ended output 24 VDC proximity switches may be connected The 2 discrete outputs can be controlled through 2 programmable threshold values Operating Mode 3 Reserved Operating Mode 0 Equivalent 22 20 Operating Mode Descriptions 2 4 4 Operating Mode 4 Counting with x1 Logic Incremental Encoders Position sensing through incremental encoders is performed according to a counting method Therefore the encoder must be calibrated after turn on or after power failure The encoder provides an appropriate reference signal zero pulse In order to distinguish the direction of rotation during forward or reverse travel the incremental encoder provides two periodic square wave signals 90 out of phase which are evaluated and appropriately counted by the AEC 920 00 The 2 discrete outputs can be controlled through 2 programmable threshold values Count up gt gt Count down A1 input V AT T B1 input x l i T N v V L c Se l 900 900 Z1 input 2 4 5 Operating Mode 5 Counting with x4 Logic Incremental Encoders Identical to operating mode 4 but offering 4 times the resolution
94. stay unchanged Output word Entry 400 101 1200 hex 400 102 0 400 103 782 hex 400 104 0 400 105 100 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 102 300 103 802 hex 300 104 300 105 300 106 300 107 300 108 106 21 Application Examples Step 3 Transfer of Threshold Value 2 Configuration of Output 2 The threshold value 2 200 is transferred next Simultaneously output 2 is configured output Mode A This happens with the output words 3 and 5 again All other entries stay unchanged cS Note Change contents of register 400103 first before changing register 400105 contents Otherwise the threshold value 1 will be overwritten Output word Entry 400 101 1200 hex 400 102 0 400 103 A783 hex 400 104 0 400 105 200 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 102 300 103 803 hex 300 104 300 105 300 106 300 107 300 108 21 107 Width 178 mm Height 216 mm Application Examples Step 4 Enable of the Preset Bit and the Counter Enable Bit Now the counter gets enabled per software This is done with the output word 1 All other entries stay unchanged Output word Entry 400 101 1203 hex 400 102 0 400 103 A783 hex 400 104 0 4
95. t the counter enable bit Bit 1 in output word 1 Output word Entry 400 101 90A hex 400 102 0 400 103 88 hex 400 104 DOB hex 400 105 2 dec 400 106 0 400 107 50 dec 400 108 0 Input word Counter feedback 300 101 A00 hex BOO hex 300 102 300 103 8808 hex 300 104 B hex 10B hex 300 105 9990 dec 300 106 300 107 300 108 cS Note Step 1 4 may be combined to one step The clock signals of the internal clock are counted as long as the Counter gate is open and the counter enable bit is set After the first completed count period bit 15 142 21 Application Examples in input word 3 is set and input word 5 shows the counted value per gate time in this case 9990 This means 9990 x 10 ms 99 9 ms cS Note Bit positions are IEC That is bit 15 is left most while bit zero 0 is right most when viewing register contents Make sure that a value gt 0 is entered into output word 5 6 before entering the ratio no B for a frequency output Otherwise the value 0 will be overtaken and the output will be switched off Changes of the time period definition are overtaken after a positive edge on the counter enable bit in output word 1 For the operating mode 9 all digital inputs are without function 21 143 Width 178 mm Height 216 mm Application Examples B 6 Example 6 Frequency Meter Full Period with Internal Time Base Mode A B 6
96. ta 83 Incremental encoder functional diagram 21 Incremental Position Sensing 11 Input Words 41 Interbus ID Code 52 Interface Adapter 7 8 Internal Connections 42 L L_E 87 L_ED 71 LED Status Display 51 M M_E 87 Machine Zero Point 33 Momentum Adapter Selection 38 Momentum Adapters 6 Multi Turn Encoder 25 Bit 36 Multi Turn Encoder 24 Bit 36 O O_E 87 Open Circuit Monitoring 71 Operating Modes 61 Output Word 3 67 Output Word 4 68 Output Words 40 P P_E 88 Period Measurements 10 Period Meter Time Base Code Number 69 Period Meter with 5 Time Bases 29 61 Position Sensing with Multi Turn Encoders 24 Bit 61 Position Sensing with Multi Turn Encoders 25 Bit 61 Position Sensing with Single Turn Encoders 61 PP 91 Preset Mode 20 Preset Modes 62 Preset Value 16 Preset Value Acceptance 20 Preset Value for Long Cams 66 156 20 Index Preset Value for Short Cams 65 Processor Adapter 7 PS E 87 Pulse Counter with External Time Base 61 Pulse Counter with Time Base 26 Pulse Generator 10 Pulse Generator 24 VDC Wiring Example 47 103 110 119 Pulse Generator 5 VDC Wiring Example 46 Q Q1 60 Q1 Q3 91 Q1_F 60 Q2 60 Q2 Q4 91 Q2_F 60 R RCVA 91 REF 91 Repetitive Counter 10 Reported Status High Byte 91 Returned Code Number Low Byte 91 Rotary Speeds 26 S Serial synchronous Interface 33 Single Turn E
97. ta values bits 16 31 20 57 Width 178 mm Height 216 mm 99 oz ZO LO jo pesjsu s nd no 3 319S1P FO EO 0 4 A MOy ureja Z 49JUNOD 104 SUONOUN wes s y Salyloads z P om 1nd1nO pejeeda ad JSNW SanjeA UOIIMS wul SIEMYOS DUR NJLA Josa d aul JO 1 JSULI E 18919191 UOIDOJIP 1 PODU SS JOLY The counting direction is reversed for all operating modes when software sets bit 15 4 bits for operating mode selection Desired force state for Q2 discrete output i e force to 0 or 1 Force activation for Q2 discrete output 1 active Desired force state for Q1 discrete output i e force to 0 or 1 Force activation for Q1 discrete output 1 active Counter preset software enable uolpal p Bununog sig 18S2lq v v s q 90104 sq pow Bunesado s aiqeus MS QD w a D la a w a gt 1 w gt N 9 gt w w it w N 2 lt z Q o m D D O N N A O a 2 gt lt m w A u N oO U m a O m o U J L paom Ind no yno payioeds aye suonouny Ja UNOD Bulmoy o y L Lv Z pue sp om ndino 10 uOHeunbyUOD uolyesunByuoyd J91u no Counter Configuration 4 1 1 Software Enable s and Filter Activation Output words 1 2 bits 0 4 These bits can enable the following functions DO E P 1 Preset value enable Preset va
98. tal output 1 and the time base of 1sec by the digital output 3 This leads to the following settings m Counter 1 is configured as rate counter full period Mode 8 Output 1 is frequency output with e g 5 ms pulses 5 ms on 5 ms off and simulates the pulse to be counted Output 3 is frequency output with 500 ms pulses 500 ms on 500 ms off It simulates the time basis of 1 s when configured as full period The counter then counts from one positive edge of output 3 to the next Note In the operating mode rate counter the preset mode and the digital inputs are without function The digital outputs can be configured as frequency outputs only In this example we have 24 Vdc single ended signals That is why the 20 kHz Filter has to be activated Wire detection has to be disableed 128 21 Application Examples Wiring Notes Output 1 to counter input A1 row 2 pin 13 to row 3 pin 1 Output 3 to counter input B1 row 2 pin 15 to row 3 pin 2 A1 to return of digital outputs row 2 pin 1 to row 3 pin 11 B1 to return of digital outputs row 2 pin 2 to row 3 pin 12 1 kOhm resistor from each of the outputs 1 and 3 to the return of the digital outputs recommended Figure 23 Wiring example 4 Pulse rate Counter Full Period with external Time Base 3 QQ c Counter 1 Counter 2 Discrete Counter Control Inputs GGO S A A A gt gt 2 fr N C N 4 N t 0 ar Anr Bi Z1 C1 A
99. ter channel 2 discrete outputs 17 1M 24 VDC working voltage return 11 12 18 1L Discrete output 24 VDC working voltage discrete input supply voltage 3 1 6 A1 A2 Positive differential A input 24 VDC counter channels 1 2 2 7 B1 B2 Positive differential B input 24 VDC counter channels 1 2 3 8 Z1 Z2 Positive differential Z input 24 VDC counter channels 1 2 11 16 1M 24 VDC working voltage return 4 9 17 2M Transmitter supply voltage return 5 10 18 2L 5 30 VDC transmitter supply voltage 20 Width 178 mm Height 216 mm 43 170 AEC 920 00 Table 5 Incremental encoder cable lengths and cut off frequencies Transmitter type with Cable length Cut off frequency signal level kHz 5 VDC RS 422 up to 100 m shielded twisted pair 200 kHz 5 VDC RS 422 up to 300 m shielded twisted pair 100 kHz 24 VDC up to 300 m 10 kHz w filter active Table 6 Absolute encoder cable lengths and cut off frequencies Trans type Cable length Cut off frequency kHz RS 422 100 m max Each specified by the 170 AEC 920 00 44 20 170 AEC 920 00 3 5 Wiring Practices and Examples The following measures are recommended to protect count signals from external push pull or common mode disturbances m Use shielde
100. tors and Incremental Encoders The software amp hardware logic operations demonstrate the relationships for incremental encoders Field Inputs IN_1 Counter 2 LR ONS E i i L Accept preset value IN_2 Counter enable IN_3 Hold u current count At A m L A Figure 2 Incremental encoder functional diagram amp Counter gt preset yy TSX cay YY Momentum amp Counter 2 communication enable G adapter port E CP wy 8 IN words a R VA A 8 OUT words amp S Count hold VY 7 Q1 Output s Counter inputs Q2 Output uf 20 Width 178 mm Height 216 mm 21 Operating Mode Descriptions 2 4 2 4 1 2 4 2 2 4 3 Pulse Generator amp Incremental Encoder Modes Operating Modes Output words 1 2 bits 8 11 Operating Mode 1 Pulse Down Counter In this operating mode all A input pulses count down starting from a preset value default 0 The B input is functionless Pulse generators with both 5 VDC differential output RS 422 and 24 VDC single ended output 24 VDC proximity switches may be connected The 2 discrete outputs can be controlled through 2 programmable threshold values Ope
101. transmitter pulse generator absolute encoder or incremental encoder Encoder input signals are usually 5 Volt signals however there are many application situations where 24 Volt signals are also authorized To facilitate control of the count and comparison functions each of the two counters is further equipped with three discrete hardware inputs which are also available as software signals Counter enable Accept preset value m Hold current count Note Operating modes are described in Chapter 2 The diagnostic data and configuration of these functions is covered in Chapters 4 and 5 Configuration examples for counter operation mode are presented in Appendix A 20 Width 178 mm Height 216 mm Introduction 1 2 1 1 2 2 1 2 3 1 2 4 1 2 5 Event Counting The module is suitable for the operation of fast counting pulses and can provide explicit reaction should the specified command data values be over or underrun Repetitive Counter In this operating mode the module counts up to the previously registered modulo value rolls back to a 0 count and continues from there If a 0 count is underrun while counting down the count jumps back to the modulo value Modulo values are always positive Expert The repetitive function can be activated for every operating mode by transfer of a positive modulo value code number 7 Exceptions are operating modes C D and E for absolute encoders Freque
102. ured first in the output word 1 Output word Entry 400 101 A08 hex 400 102 400 103 400 104 400 105 400 106 400 107 ar DE a DE ar FE ae DE m DE a NE al 400 108 Input word Counter feedback 300 101 220 hex 300 102 300 103 800 hex 300 104 300 105 300 106 300 107 300 108 148 Application Examples Step 2 Configuration of Output 1 as Frequency Output and Disable of the Broken Wire Detection Configure output 1 as frequency output Output Mode D disable the broken wire detection and transfer the time basis 1 ms ratio no B for the output frequency value 1 to be counted out words 3 and 5 After that output 1 is blinking 1 ms on 1 ms off cS Note In the reference data editor first enter the time basis word 5 and then the ratio no in word 3 Otherwise the value 0 is going to be transferred and the output will be switched off Output word Entry 400 101 A08 hex 400 102 0 400 103 D8B hex 400 104 0 400 105 1 dec 400 106 0 400 107 0 400 108 0 Input word Counter feedback 300 101 200 hex 300 hex 300 102 300 103 80B hex 90B hex 300 104 300 105 300 106 300 107 300 108 21 149 Width 178 mm Height 216 mm Application Examples Step 3 Configuration of the Internal Time Basis for Frequency Measuring
103. whether this operating mode has been invoked for counter 1 or 2 Explanation of transmitter types Inc incremental encoder Abs absolute encoder Pul pulse generator cS Note 0 3 and B are not true operating modes in the conventional sense The counter is in a neutral mode i e in a secure state and inactive 20 15 Width 178 mm Height 216 mm Operating Mode Descriptions 2 2 2 2 1 2 2 2 2 2 3 2 2 4 Common Counter Characteristics Both of the 170 AEC 920 00 I O base counters are operated as a unit either with incremental pulse or absolute encoders Counter Resolution Counter resolution is at most 24 bit sign equivalent to decimal values from 16 777 216 16 777 215 The counting range utilized is dictated by the operating mode 13 operating modes are selectable 5 VDC 24 VDC Counter Inputs The module can be connected to both 5 VDC differential signal RS 422 encoders and 24 VDC signal single ended encoders Preset Value The counter can be loaded with a freely definable value from the PLC with the preset value Preset value acceptance is dependent upon both the preset mode and the discrete inputs Counter 1 is assigned discrete input 1 and counter 2 discrete input 4 When no preset value is transferred from the PLC a default preset value of 0 is placed in the counter Software Limit Switch A counter working range can be specified through the upper

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