115S Serial I/O Module User Manual
Contents
1. 5000 31 25 20480 0 63 1 25 1 50 1 25 2 50 6 00 5800 34 38 22528 0 94 1 88 1 75 1 88 3 75 7 00 6000 37 50 24576 1 25 2 50 2 00 2 50 5 00 8 00 6800 40 63 26624 1 56 3 13 2 25 3 13 6 25 9 00 7000 43 75 28672 1 88 3 75 2 50 3 75 7 50 10 00 7800 46 88 30720 2 19 438 2 75 4 38 8 75 11 00 8000 50 00 32768 2 50 5 00 3 00 5 00 10 00 12 00 8800 53 13 34816 2 81 5 63 3 25 5 63 11 25 13 00 9000 56 25 36864 3 13 6 25 3 50 6 25 12 50 14 00 9800 59 38 38912 344 6 88 3 75 6 88 13 75 15 00 A000 62 50 40960 3 75 7 50 4 00 7 50 15 00 16 00 A800 65 63 43008 406 813 4 25 8 13 16 25 17 00 BOOO 68 75 45056 438 8 75 4 50 8 75 17 50 18 00 B800 71 88 47104 4 69 9 38 4 75 9 38 18 75 19 00 C000 75 00 49152 5 00 10 00 5 00 10 00 20 00 20 00 C800 78 13 51200 5 31 10 63 5 25 10 63 21 25 21 00 DOOO 81 25 53248 5 63 11 25 5 50 11 25 22 50 22 00 D800 84 38 55296 5 94 11 88 5 75 11 88 23 75 23 00 E000 87 50 57344 6 25 12 50 6 00 12 50 N A 24 00 E800 90 63 59392 6 56 13 13 6 25 13 13 N A N A FOOO 93 75 61440 6 88 13 75 6 50 13 75 N A N A Table 5 1 Hex representa2. 115S Serial I O Module User Manual ELPRO Technologies Pty Ltd 9 12 Billabong Street Stafford O 4053 Australia Tel 61 7 33528600 Fax 61 7 33528677 Email sales elprotech com Web www elprotech com 1158 Serial VO Module User Manual Thank you for your selection of the 115S Serial I O Module We trust it will give you many years of valuable service ATTENTION Incorrect termination of supply wires may cause internal damage and will void warranty To ensure your 115S product enjoys a long life Double check ALL your connections with the User Manual before turning the power on All equipment must be properly grounded for safe operation All equipment should be serviced only by a qualified technician Important Notice ELPRO products are designed to be used in industrial environments by experienced industrial engineering personnel with adequate knowledge of safety design considerations These products should not be used in non industrial applications or life support systems without consulting ELPRO Technologies first Installation and Operating Instructions The Expansion I O modules are to be installed by trained personnel licensed electricians only and installation must be carried out in accordance with the instructions listed in the Installation Guide and applicable local regulatory codes The units are intended for Restricted Access Locations The Expansion I O modules are intended to be installed i
3. Comms Pulsed Outputs Setup Single ended Voltage input Differential Voltage input Single 41 gt 1155 Detected DIP switches 1155 12 AIN V DIP switches set 3 Analog input module Voltage differential Save configuration AIN1 0 to 5V AIN2 0 to 5V AIN3 0 to 5V Scale AIN4 0 to 5V Dto5Y Otoi 1to5Y AINS 0 to 10V AINE 0 to 10V AIN1 AIN2 G a AIN7 1 to SV AINS 1 to 5Y AIN3 AIN4 AINS AINE Firmware version 01 03 PCB Revision 1 14 PCB Serial Number 11051888 Update Status Panel AIN AINS Save scales to 1155 Figure 4 6 Setup page for differential voltage input Page 32 June 2011 1158 Serial I O Module User Manual Once the dip switches on the unit are set tick the checkbox on the form and click Save configuration Check the 1155 Detected panel to ensure that the analog mode has been updated to Voltage differential Clicking Read from 115S will read the scales out of the unit if any and display them in the scales grid Note that the dip switches should be set correctly for this result to be relevant Choose the desired scale for each channel in the Scale box Click the Save scales to 1158 button and check that the scales are updated in the 715S Detected panel 4 4 2 Current input Current inputs may be selected in the scales 0 to 10mA 0 to 20mA or 4 to 20mA For each scale the minimum to maximum signal levels are represented by 4000 hex to C000 hex Table 4 2 shows how
4. WARNING Ensure correct DIP switch positions AND software configuration has been completed for each analogue input BEFORE connecting external signals to the 115S 12 module 2 2 4 Analog Outputs The 115S 13 provides eight analog outputs These may be configured as voltage or current outputs The current output may be selected as sink or source current Refer to Section 4 5 for detail on configuring analog outputs 2 2 4 1 Current Output Current output mode may be configured for current source or current sink Figure 2 11 shows the connections for current source mode Figure 2 12 shows the connections for current sink Page 18 June 2011 115S Serial I O Module User Manual 115S 13 Module ALS 24V Figure 2 11 Connection for current source output Note The module is configured at the factory for this type of output connection To change the input configuration refer to section 4 5 1155 13 Module Figure 2 12 Connection for current sink output Note The hardware configuration needs to be changed for this type of output connection To change the hardware configuration refer to section 4 5 man 1158 1 15 docx Page 19 115S Serial I O Module User Manual 2 2 4 2 Voltage Output Voltage output mode produces a voltage referenced to the module s AGND Figure 2 13 shows the connection for voltage output configuration 115S 13 Module PLC VOLTAGE ALS 24V m LLL INPUT i F
5. A 3 1158 13 Data Modbus I O Type Modbus Addresses Digital input 1 Input status 10001 Digital input 2 Input status 10002 Digital input 3 Input status 10003 Digital input 4 Input status 10004 Digital input 5 Input status 10005 Digital input 6 Input status 10006 Digital input 7 Input status 10007 Digital input 8 Input status 10008 Digital output 1 Coil status 00001 Digital output 2 Coil status 00002 Digital output 3 Coil status 00003 Digital output 4 Coil status 00004 Digital output 5 Coil status 00005 Digital output 6 Coil status 00006 Digital output 7 Coil status 00007 Digital output 8 Coil status 00008 Pulse output count 1 Input registers 30009 Pulse output count 2 Input registers 30010 Pulse output count 3 Input registers 30011 Pulse output count 4 Input registers 30012 Pulse output count 5 Input registers 30013 Pulse output count 6 Input registers 30014 Pulse output count 7 Input registers 30015 Pulse output count 8 Input registers 30016 Pulse output target 1 Holding registers 40009 Pulse output target 2 Holding registers 40010 Pulse output target 3 Holding registers 40011 Pulse output target 4 Holding registers 40012 Pulse output target 5 Holding registers 40013 Pulse output target 6 Holding registers 40014 Pulse output target 7 Holding registers 40015 Pulse output target 8 Holding registers 40016 Modbus Output Timeout Holding registers 40204 Pulse out update time 1 Input registers 30109 Pulse out update time 2 Input registers 30110
6. PPR Raviciam 1 9A Figure 4 3 Pulsed outputs setup page for a 115S 11 The pulsed outputs are available on all models Clicking the button Read from 115S will read the pulse out update times from the 115S and display them on the form The Pulse Out Update Times should be set to the approximate interval at which the 115S will receive updates to its pulse out target register The pulse output circuitry will attempt to generate pulses at a rate that will reach the target pulse count within the update time For example if the Modbus master unit is configured to send the register value for the pulse output channel every 1 minute then the Update Time should be set to 1 minute The maximum allowed pulse out update time is 34 minutes 57 seconds Set the update times for each channel in hours minutes and seconds An update time of zero will never produce any pulses After the update times have been set click the Save Update Times button The pulse output feature can be tested on the Check folder tab refer section 5 Page 28 June 2011 1158 Serial I O Module User Manual 4 3 1158 11 configuration 4 3 1 Pulsed Inputs Choose the Pulse Inputs Setup page as shown in Figure 4 4 File Format Help HEX DEC Connect Comms Pulse Inputs Setup Pulsed Outputs Setup DIO Check 1155 Detected Maximum Input Pulse rate 1159 11 DIO Digital 1 0 module DIO1 60 per minute pio2 1120 per minute pigoz 60000 per minute Read from 115
7. Pulse out update time 3 Input registers 30111 Pulse out update time 4 Input registers 30112 Pulse out update time 5 Input registers 30113 Pulse out update time 6 Input registers 30114 Pulse out update time 7 Input registers 30115 Pulse out update time 8 Input registers 30116 Analog outputs 1 Holding registers 40001 Page 50 June 2011 115S Serial I O Module User Manual Data Modbus I O Type Modbus Addresses Analog outputs 2 Holding registers 40002 Analog outputs 3 Holding registers 40003 Analog outputs 4 Holding registers 40004 Analog outputs 5 Holding registers 40005 Analog outputs 6 Holding registers 40006 Analog outputs 7 Holding registers 40007 Analog outputs 8 Holding registers 40008 Module supply voltage Input registers 30033 Analog supply voltage 28V Input registers 30034 Serial port transmission mode Input registers 30201 Serial port baud rate Input registers 30202 Serial port parity and stop bit Input registers 30203 Modbus Comms Fail Timeout Input registers 30204 ELPRO ACK Timeout Input registers 30205 Module Firmware version Input Register 30801 0x4000 8V 0xC000 40V Firmware earlier than 2 00 is 0x4000 8V 0xC000 16V 0x4000 12V 0xC000 36V 1 Y Timeout values in 32mSec increments 0x0204 Ver 2 04 man 1158 1 15 docx Page 51 115S Serial I O Module User Manual Appendix B Modbus Functionality Table B 1 speci
8. idle 13 8V 11 100mA 12 100mA 13 120mA Supply current for I O per digital input 13mA per digital output 13mA per analog input 50mA per analog output 50mA If using 24V loop supply Loop supply 24V nominal Loop supply will follow 115S xx power supply voltage above 24V input Loop supply max current 1158 12 270mA 1155 13 160mA RS232 port Modbus protocol RS485 port Modbus protocol ELPRO E Series protocol Modbus protocol Transmission modes Modbus ASCII 8 data bits Modbus ASCII 7 data bits Modbus RTU Tf no parity use 2 stop bits If using parity use 1 stop bit Baud rates 1200 2400 4800 9600 14 400 19 200 28 800 38 400 57 600 76 800 115 200 Parity Odd even none Stop bits 1 2 Slave address Modbus 01 99 Elpro 96 127 Note Each module requires 3 addresses meaning the maximum number of serial modules per radio is 10 man 1158 1 15 docx Page 55 1158 Serial I O Module User Manual Default settings If slave address 0 Modbus RTU 9600 N 1 Digital inputs On state voltage lt 2 1VDC Wetting current 5mA Max pulse input rate 1kHz Minimum pulse width 0 5mS Max pulse input count 4294967295 32 bit Digital outputs Output voltage range 0 30 VDC Output current max 200mA Max pulse output rate 50Hz Max pulse output co
9. 2 2 4 Analog Outputs tia td cacas 18 3 CONFIGURATION aia eee 21 31 ELPRO EXPANSION I O CONFIGURATION ecsescecesseeseeecesseceseeesseeceaeeseneeesaeessaeeeeaes 21 3 2 MODBUS SLAVE CONFIGURATION ccccccsssssssssesececceccaeaaeeesessscscceceeeeesausaensessceceeeeess 23 4 HARDWARE CONFIGURATION iiiceeeceeeeeeeeseeeeeeseeeeseeeeeseeeeeseeeeseeesesseessesesse 24 4 1 CONNECTING TO THE 115S MODULE ccccccccscssssssseseccecceccecseaesessesececeeeeeecauaeaeesesees 24 42 CONFIGURATION COMMON TO ALL MODULES c ooocccononcccononccononanononnnncconnnnnnnnnnnconananncnnnss 25 4 2 1 COMMUNICATIONS 3 84 raser e nen E a a e EEA TE ta 25 4 2 2 Modbus Output Timeout on Comms fail 0 00 ceecccceeetecceseeeeeeseeeeeeestaeeenennees 26 4 2 3 Configurable ACK Timeout cecccccccsceeesseeecenecceseeeeeseaeeceenaaeceneneeenseneeeess 27 4 2 4 P lsed outputs A A NA 28 48 115S L CONFIGURATION co ito dat ida 29 4 3 1 Pulsed Ip a id hea a 29 44 1155 12 CONFIGURATION i ce cccccsssdesacecadecasdutecdecssnatanabonccs sesentavetectesdatadecsaceuvadannenscevieay 30 4 4 1 Voltage inpitssiei steve destin ca 30 4 4 2 CUA a dl 33 LIBE IEA Ic II NS im lr dali dia 36 4 5 1 NOltAeOULPUE dhemimmmir mm RN TE E E E E 36 4 5 2 Caent opu aa aa aan E AA N A A AASA e 38 5 OPERATION seseccscscunassesicceessesveatsacomeansantan woveaanecessseveasanscsuoesecpenescasepensatensenesestaccentat 40 gir ATSSATMODULE O OS E 40 A A O OA RA 41 A A NANA 43 5
10. 4 to 20mA For compatibility with E Series modules 4 20mA current is recommended See section 4 4 for more information on compatibility The values on the analog input are decimal 16 384 hex 4000 for minimum signal 0 and decimal 49 152 hex C000 for maximum 100 The analog channel will measure over scale up to 150 which will have value 65 536 hex FFFF For 4 20mA signals the channel will measure under scale down to OmA which has a value of 8 192 hex 2000 See section 5 4 for hex to decimal conversion The 115S 12 provides a 24V analog loop supply ALS for powering analog loops 1 1 5 Analog outputs The 115S 13 has eight analog output channels and can be configured to output voltage or current For current signals source or sink can be selected The scale of each analog output is specified during configuration with scale options as follows Voltage output scale options 0 to 5V 0 to 10V 1 to 5V Current output scale options 0 to 10mA 0 to 20mA 4 to 20mA source or sink e Voltage outputs are measured with respect to the ground terminal e Current source outputs are measured with respect to the ground terminal e Current sink outputs are measured with respect to the 24V ALS terminal Writing to the output register by the master produces the analog output Minimum to maximum signals 0 100 are produced by register values from decimal 16 384 to 49 152 hex 4000 C000 See s
11. provide 8 digital output signals These signals are marked DIO1 8 and DIO1 16 for the 1155 11 On all 115S modules DIO 1 8 can also operate as pulsed outputs When active digital outputs provide a transistor switch to EARTH To connect a digital output refer to the diagram in Figure 2 6 A bypass diode is recommended to protect against switching surges for inductive loads such as relay coils 115S Module Max 30VDC 0 2A Figure 2 6 Connection of digital outputs Note that digital outputs will only switch DC circuits with maximum voltage 30VDC 2 2 3 Analog Inputs The 115S 12 provides eight grounded single ended or four floating differential analog inputs These provide measurement of voltage signals 0 10V or current 0 20 mA signals An internal 24V analog loop supply ALS is generated for current loops Refer to Section 4 4 for detail on configuring single ended differential current mode or voltage mode inputs 2 2 3 1 Grounded Single Ended mA Inputs Single ended current inputs allow twice as many inputs as the differential mode This mode is useful when the sensor loop can be grounded to the 115S module Devices may also be powered by the 24V supplied by the 115S Refer to Figure 2 7 Page 14 June 2011 115S Serial I O Module User Manual Loop powered 1158 12 Module sensor ALS 24V Externally powered sensor Figure 2 7 Connection for single ended current inputs Transducers may be externally power
12. to the module and the PC Start the configuration software cfg_115S_Vx xx exe Set the slave address to 100 Ensure the comms settings are 9600 baud no parity one stop bit Click Connect to 1158 The module should connect successfully Choose the Comms page and change the settings to the desired parameters If the module did not connect successfully try the steps listed below for using ModScan 22 SEN A A S Procedure for recovering communications with firmware V1 04 and earlier 1 Set the Modbus address switches to 00 This fixes the communications setting to those specified in step 6 2 Connect the RS232 port to the PC and start ModScan Supply power to the 1155 4 In ModScan set the following Address 0201 Length 3 Device ID 100 Modbus Point Type Holding register 5 Click Connection Connect 6 Choose the appropriate COM port Also choose Baud rate 9600 Word length 8 Parity none Stop bits 1 7 Click Protocol Selection Choose STANDARD ASCII for Transmission mode Click OK OK uy 00 ModScan should connect to the module with no errors 9 The registers displayed in ModScan represent the serial port settings that are used when the address switches are set to other than 00 as follows Address Description 40201 Serial port transmission mode man 1158 1 15 docx Page 53 115S Serial I O Module User Manual 40202 Serial port baud rate 40203 Serial port parity an
13. 4 HEXADECIMAL REPRESENTATION OF VOLTAGE AND CURRENT LEVELS ccscceeteeeeees 45 APPENDIX A MODBUS ADDRESS MAP oocconcccccocnonccconanoconsanocccnonocccnonocnocannanoconnononos 46 O A ONO 46 Ed 48 AMI A E da A 50 APPENDIX B MODBUS FUNCTIONALITY oncccncccnnoccononoconnonococnonocccnonicncnannococonioconos 52 APPENDIX C COMMS RECOVERY cccssccssssssccscssscscsscscsscscsccssscescssccsesssscsenees 53 Page 4 June 2011 1158 Serial I O Module User Manual APPENDIX D SPECIFICATIONS i sccpiscdscccuessscvesnsteatasscscvcsesctsondedansessssinsbeusssseunaiceesiuea 55 APPENDIX E RS232 WIRING sionistas nidn cis 57 1 Overview The ELPRO 115S modules are designed to provide I O expansion for other ELPRO products like 105U and 905U modules The 115S modules support the ELPRO E Series protocol and communicate serially via RS232 or RS485 Configuration is done via the ELPRO E Series configuration utility The 115S modules also support MODBUS protocol They may be used as a MODBUS slave with any 3 party MODBUS device or with the ELPRO 105U G or 905U G modules using MODBUS They support both MODBUS ASCII protocol and serial un signed MODBUS RTU also known as MODBUS binary The Modbus slave address of the 115S is selected via two rotary switches on the bottom panel of the case All 115S models provide digital inputs and outputs Specific models provide analog inputs or analog outputs Pulsed inputs and pulsed outputs are also availa
14. 5 DID4 60000 per minute Figure 4 4 Pulse inputs setup Only available on a 1158 11 module Clicking the Read from 1158 button reads the existing maximum pulse rate settings from the 115S and displays them on the form If pulse rate is to be used the maximum pulse input rate must be set The pulse rate value 1s calculated as a fraction of the maximum pulse input rate Specify the maximum pulse input rate in pulses per minute The highest allowable pulse input rate is 60000 pulses per minute or 1kHz Once the maximum pulse rates are specified click the Save Max Rates button to save the data to the 115S module The pulse input feature can be tested on the DIO Check page refer section 5 1 man 1158 1 15 docx Page 29 115S Serial VO Module User Manual 4 4 1158 12 configuration 4 4 1 Voltage input Voltage inputs may be selected in the scales 0 to 5V 0 to 10V or 1 to 5V For each scale the minimum to maximum signal levels are represented by 4000 hex to C000 hex Table 4 1 shows how the 1158 12 voltage readings translate to outputs in other ELPRO products 115S 12 115S 12 105 G 105 1 105 3 Voltage scale Input voltage Register value Output current Output current V hex mA mA 0 to 5V 0 4000 4 4 5 C000 20 20 0 to 10V 0 4000 4 4 10 C000 20 20 1 to 5V 0 2000 0 5 0 1 4000 4 4 3 000 20 20 Table 4 1 Compatibility of 115S 12 voltage inputs with other ELPRO products Re
15. 5S DER File Format Help Connect Comms Pulsed Outputs Setup Voltage Dutput Current Output AOT Check Digital outputs Digital inputs Pulse Output count 0N DIO1 C DIO1 0000 1155 13 AOT DID2 DIO2 0000 Analog output module DIOS BIOS 0000 Voltage DIO4 DIO4 0000 AOT1 Oto 107 DIOS go000 AOT2 Oto 10V DIOS ADT3 Oto 10V DIOS DIO6 0000 AOT4 Oto 10 DIO 0000 AOTS Dto 10V DIO AOTE Oto 104 biog DIOS 0000 AOT Oto 10V AOTS Oto 10V 1155 Detected 33 a gt 9 9 9 9 o Analog Dutputs Copy to All Pulse Output Target Scaled AQT 58000 DIO1 0000 Firmware version 01 04 PCB Revision 1 24 AOT2 f cooo Copy DIO2 0000 PCB Serial Number 03061302 AOT3 4000 DIOS 0000 AOT4 0000 DIO4 0000 Update Status Panel AOTS 0000 DIOS 0000 AOT6 0000 DIOS 0000 ADT 0000 DIO 0000 A0T8 0000 Edit Targets DIOS 0000 Figure 5 6 Check the operation of the 115S 13 module using the AOT Check page man 1158 1 15 docx Page 43 115S Serial I O Module User Manual Test the digital outputs by setting the select buttons to ON or OFF this will force the DO to the selected state Digital inputs are reflected in the software by blacking ON or greying OFF of the associated label in the Digital Inputs column The pulse output count values are also shown The pulse out target may be set by clicking the Edit Targets button Pulses will be produced until the count reaches
16. 7 Every serial module that is connected to the same radio module needs a separate address You can use the same address on two 1155 11 DIO 4103_2 different serial modules if they are 1155 11 DIO 4103_2 connected to different radio modules IS Note When using modules as Elpro Expansion VO each module will be assigned 3 addresses Unit Address Unit Name Once you have added the new module you can configure I O mappings the same way you would for the older 105 series modules or a radio module For more information on configuring ELPRO E Series modules using the E Config software refer to the 105 1 or 905 1 user manual Figure 3 3 Select unit address Page 22 June 2011 115S Serial VO Module User Manual 3 2 MODBUS Slave Configuration If configured as a MODBUS Slave the module will need to have a unique Slave address see section 2 1 2 Address Switches above for details on how this is done The Address selected will be the address that the MODBUS Master needs to poll to gather data The module also has a number of internal registers that hold the I O values status etc These register are polled by the MODBUS Master using standard commands that Read Write values to or from the device When the Modbus Master Polls the Slave is does so using a Modbus Command and an T O location This Modbus command will varies depending on whether they are Inputs Outputs and Analog Digital values Example e To read a
17. 8 DIOS 0000 DIOS 0000 DIO 0000 DIOS 0000 Update Status Panel Edit Targets Figure 5 4 Check the operation of the 1158 12 module with the AIN Check page Test the digital outputs by setting the select buttons to ON or OFF this will force the DO to the selected state Digital inputs are reflected in the software by blacking ON or greying OFF of the associated label in the Digital Inputs column The pulse output count values are also shown The pulse out target may be set by clicking the Edit Targets button Pulses will be produced until the count reaches the target The analog inputs can be viewed in decimal or hexadecimal and represents a fraction of the analog signal where hex 4000 is 0 and hex C000 is 100 In differential configuration only the value of the first channel in the differential pair shows the quantity being measured The second channel of each differential pair should be ignored Page 42 June 2011 115S Serial I O Module User Manual 5 3 115S 13 module The I O terminal block for the 115S 13 is shown in Figure 5 5 e p F a oe Is L DIO ALS il oa ao ou i add il AOT A ALS 8 Earth 24 8 GND 24 HHHHHHHHHHHHHHHHHH Figure 5 5 I O terminal block for 115S 13 Pulse outputs coincide with DIO terminals 1 8 The operation of the 1155 13 may be confirmed using the configuration software Start the software as described in chapter 4 and choose the 4O7 Check page W cfg 11
18. 8 1 15 docx Page 25 1158 Serial I O Module User Manual 4 2 2 Modbus Output Timeout on Comms fail The module when being used as a Modbus Slave device has an output reset on comms fail feature This means the outputs are turned off after a configured timeout if the module doesn t receive any Modbus polls to itself Note The Modbus Output Timeout feature is available in Firmware version 2 02 and above To set the Modbus Output reset time use the configuration software V1 09 and above and under the Comms tab you will see a Modbus Output Timeout Select the appropriate time and then press the Set Comms button and then resetting the module See Figure 4 2 above Note that you will need to change the connection settings on the Connect page and re connect to the 115S Maximum Output timeout is 34 minute 57 seconds Selecting 00 00 minutes and seconds will disable the outputs resetting Be aware the Modbus Output Timeout must be greater than the Modbus Master Poll time or you will see the outputs reset before the next poll Generally it is good practice to configure the reset time to two or three times the Modbus poll time so as to ensure accurate comms fail indication The Modbus Output Timeout can also be configured by the Modbus Master by writing into register 204 in units of 32 msec E g AO hex would be 5 12 seconds 3A9 hex would be 30 seconds and 249F would be 5 minutes The module t
19. Digital Input on the module an 02 Input Status command is used and the Modbus address will be in the range 10001 19999 e To read an Analog input on the module an 04 Input Register Command is used and the Modbus address will be in the range 30001 39999 e To write to a Digital output Turn it on you need to use a 01 Coil Status Command and the Modbus address location will be 0001 9999 e To Write to an Analog output you will need to use an 03 Holding Register command and the Modbus Address will be in the range 40001 49999 See Appendix A Modbus address map for the I O registers locations Note all Analog values are 16 bit unsigned integers We recommend using Wintech s Modscan and Modsim which are low cost Modbus Master and Modbus Slave simulators to help diagnose any Read Write addressing issues www win tech com man 1158 1 15 docx Page 23 115S Serial VO Module User Manual 4 Hardware Configuration Hardware Set up allows the 115S hardware function to be adjusted to suit the application To configure the hardware settings you need Access to the DIP switches under the Analog Configuration Panel refer Figure 1 1 115S unit with significant parts labeled Configuration Software to run on your PC Configuration of the 115S modules is performed by either the dedicated 115S configuration software cfg_115S_Vx xx exe or by the ELPRO E Series configuration software from the Utili
20. E ADT AOTS ALL Read from 1155 Cc y 3 3 gt Oj y 3 Firmware version 01 04 PCB Revision 1 24 PCB Serial Number 03061302 Update Status Panel O 202 20 2 8 3 2 07 Ob Da gt O Figure 4 10 Current output setup page Once the dip switches on the unit are set tick the checkbox on the form and click Save configuration Check the 1155 Detected panel to ensure that the analog mode has been updated to Current Clicking Read from 115S will read the scales out of the unit if any and display them in the scales grid Note that the dip switches should be set correctly for this result to be relevant Choose the desired scale for each channel in the Scale box Click the Save scales to 1158 button and check that the scales are updated in the 715S Detected panel man 1158 1 15 docx Page 39 115S Serial I O Module User Manual 5 Operation 5 1 1158 11 module The I O terminal block for the 1158 11 is shown in Figure 5 1 ES ed B oe ed DIO DIO E ba pe en p DIO 8 Earth Earth 9 16 Earth Earth AEE Figure 5 1 I O terminal block for 115S 11 Pulse inputs coincide with DIO terminals 1 4 Pulse outputs coincide with DIO terminals 1 8 The operation of the digital I O may be confirmed using the configuration software Start the software as described in section 4 and choose the DIO Check page as shown in Figure 5 2 T cfg 1155 ex File Format Help HexJoec Con
21. SNI 9 AIN7 4 to 20m AIN2 AINS 4 to 20m4 AIN3 AIN4 AINS AING AIN7 AINS ALL Y Ol Firmware version 01 03 PCB Revision 1 14 PCB Serial Number 11051888 Update Status Panel Ol a a Save scales to 1155 Figure 4 7 Setup page for single ended current input Once the dip switches on the unit are set tick the checkbox on the form and click Save configuration Check the 1155 Detected panel to ensure that the analog mode has been updated to Current single ended Clicking Read from 115S will read the scales out of the unit if any and display them in the scales grid Note that the dip switches should be set correctly for this result to be relevant Choose the desired scale for each channel in the Scale box Click the Save scales to 1158 button and check that the scales are updated in the 1155 Detected panel Page 34 June 2011 115S Serial I O Module User Manual 4 4 2 2 Differential current input The 1155 12 can be configured to measure differential current The differential pairs are AIN1 AIN2 AIN3 AIN4 AINS AIN6 and AIN7 AIN8 To use this configuration choose the differential current input page as shown in Figure 4 8 Note If mapping Differential Analog inputs using the Elpro E Series Configuration software map only the Odd inputs E g AIN1 for the first Differential input AIN3 for the second AINS for the third and AIN7 for the fourth If using Modbus all registers can be read but onl
22. al 16 384 hex 4000 for zero rate and decimal 49 152 hex C000 for the maximum rate configured by the user These zero and maximum values are the same as 0 and 100 used for analog values See section 5 4 for hex to decimal conversion The maximum pulse input rate is set during configuration The value is in pulses per minute and is limited to 60000 1 KHz the maximum rate capable of the module 1 1 4 Analog inputs The analog inputs on the 115S 12 can be connected as either grounded single ended inputs or as floating differential inputs The 115S 12 has eight grounded inputs or four floating inputs e Grounded single ended inputs connect between the AIN terminal and the GND terminal e Floating differential inputs each take up two terminals There are four differential pairs on the 115S 12 AIN1 AIN2 AIN3 AIN4 AINS AIN6 AIN7 AIN8 For Page 8 June 2011 115S Serial VO Module User Manual example the first input is connected to terminals AIN1 positive and AIN2 negative The two types of input cannot be mixed all inputs must be either grounded or floating Inputs can also be selected as mA current or voltage input all inputs must be the same either all current or all voltage The scale of each analog input is chosen during hardware configuration with scale options as follows Voltage input scale options 0 to 5V 0 to 10V 1 to 5V Current input scale options 0 to 10mA 0 to 20mA
23. anty does not indemnify the purchaser of products for any consequential claim for damages or loss of operations or profits and ELPRO is not liable for any consequential damages or loss of operations or profits resulting from the use of these products ELPRO is not liable for damages losses costs injury or harm incurred as a consequence of any representations warranties or conditions made by ELPRO or its representatives or by any other party except as expressed solely in this document man_115S_1 15 docx Page 3 115S Serial I O Module User Manual CONTENTS L OVERVIEW atraido so iae i aa A 5 T1 MODULE TYPES AND FEATURES siisi iaciae nianie ansan iar i ieii ag i easaig 7 1 1 1 Digital inputs o tDu S isisisanseea see e he Gas Sai sense cd cevcstaneusccesdaiedececssndavecaedessuacaedes 7 1 1 2 Pulsed UU a 7 1 1 3 PO S 8 1 1 4 Analog OPUS id a a eea 8 1 1 5 Analog Output Sininen an EE RE ATE E R ar 9 1 1 6 Communications iann iea aaa e a aaa oaia aa aE dada 10 EIA E T T E 11 2 1 GENERAL INSTALLATION Gar rias 11 2 1 1 Power Connect ii dai a E 11 2 1 2 Address Switches asne aaan e eaaa a aa aeea aiae 12 222 SIGNAL CONNECTIONS cortina ae de veda sdee ed eaceus tena svav els acted Pete 13 2 2 1 Digital Inputs and Pulsed Inputs oooonnnocccnnnncccnnonccccnonononononnnonnnon crono nncnnnnnoos 13 2 2 2 Digital Outputs and Pulsed Outputs oooooocnnncccnnnnccccnononcnononcnonanancnononancnnnnnnoos 14 2 2 3 Analog puts Ed bas 14
24. auge earth wire is recommended Master E Series Figure 2 1 Several 1158 units connected to a master 2 1 1 Power Connection The 115S modules require a 10 8 30 VDC power supply This is supplied to the 4 way connector shown in Figure 2 2 Model Dependent Check rear label for actual operating voltages BA Figure 2 2 Power and RS485 connector Connect 10 8 30 VDC to and earth to Connect RS485 to B and A man 1158 1 15 docx Page 11 115S Serial VO Module User Manual 2 1 2 Address Switches The address switches are found on the bottom panel of the module as shown in Figure 2 3 If you are using the 115S module with other ELPRO E Series modules ELPRO 105 and 905 modules the address switches must be set to 00 This enables ELPRO protocol mode and assigns 3 serial addresses to each module If you are using a Modbus Master device ensure each 115S connected to the same Modbus master has a unique Modbus address Note that the module must be reset after changing the address switches You can connect to an ELPRO 105U G MD1 or 905U G MD1 Module using either MODBUS protocol or ELPRO protocol ELPRO protocol is easier to set up and we recommend using this protocol for most applications CAE de De Sons x10 a AX hi Figure 2 3 Address switches The address shown is 01 Connect the RS485 B and A wires to the 4 way connector shown previously in Figure 2 2 An RS485 termination switch is provi
25. available in firmware version 2 04 and greater The configurable Ack timeout allows the wait time of this response to be extended by adjusting a register shown in the table below Address Description 40205 Configurable Ack timeout The Ack timeout is configurable from 32msec to 34 minutes 57 seconds see examples below Ack Timeout will be added to the default random 0 5 sec retry time The factory value for the Ack timeout will be 0 which will use the default 0 5 second staggered timeout Decimal Value Timeout Decimal Value Timeout 1 32msec 1875 1 Min 16 500msec 3750 2 Min 31 1 Sec 7500 4 Min 62 2 Sec 9375 5 min 100 3 2 sec 18750 10 Min 156 5 Sec 28125 15 Min 312 10 Sec 37500 20 Min 469 15 Sec 46875 25 Min 625 20 Sec 56250 30 Min 1000 32 Sec 65535 34 Min 57 Sec man 1158 1 15 docx Page 27 115S Serial I O Module User Manual 4 2 4 Pulsed outputs Choose the folder tab labeled Pulsed Outputs Setup as shown in Figure 4 3 File Format Help HEX DEC Connect Comms DIO Setup Pulsed Outputs Setup DIO Check 1155 Detected Pulse Out Update Time 1155 11 DIO DlO1 0001 00 E hhimm ss Digital 1 0 module pioz 00 10 00 bhimm ss pioz 00 00 00 hh mm ss DIO4 00 34 57 H hh mm ss DIOS 00 3457 H hh mm ss pigg 00 34 57 H hh mm ss pioz 00 3457 hhimm ss Read from 1155 Dios 00 3457 H hh mm ss Firmware version 01 04
26. ble Several modules may be connected to one master allowing any combination of I O types Figure 1 1 shows a diagram of a 115S module with parts labelled man 1158 1 15 docx Page 5 115S Serial I O Module User Manual Status LEDs RS485 and power connector termination RS232 configuration switch connector Power OK Transmit gt Receive gt Analog configuration access panel S Figure 1 1 115S unit with significant parts labeled Two ports allow configuration and communications on the 115S The RS232 port is intended for configuration The RS485 port allows the unit to be in a multi drop configuration Overvoltage protection and supply monitoring is provided to minimize the risk of failure due to faulty connections or supply surges Page 6 June 2011 115S Serial I O Module User Manual 1 1 Module types and features The module types and I O are summarised in Table 1 1 115S 11 12 13 Digital inputs outputs 16 8 8 Pulse outputs 8 8 8 Pulse inputs 4 Analog inputs 8 Analog outputs 8 Table 1 1 Summary of 115S module types and I O 1 1 1 Digital inputs outputs Each digital I O channel on the 115S modules can act as either an input or an output The input output direction does not need to be user configured Digital inputs are suitable for voltage free contacts or NPN transistor swi
27. cate with the 115S refer to Appendix C Comms Recovery If connection has been successful several folder tabs will become available depending on the module type The panel on the right hand side of the form shows the 115S detected and its settings 4 2 Configuration common to all modules 4 2 1 Communications Select the Comms folder tab This page allows you to change the communications settings of the 1155 These settings are applied to both the RS 232 configuration port and to the RS 485 Modbus interface port Choose the required settings then click Set comms You will need to power off on the 115S for the new settings to take effect Serial Expansion Module Configuration File Format Hexfoec Connect Comms Pulsed Outputs Setup Voltage Output Current Output AQT Check Module Detected Set Module Comms 1155 13 A0T Note Clicking the Set comms button Baud Rate 3600 will change the communications Anal amo dl settings of the module to those di MOGLIA None displayed here You must reset the Current Parity module for the new comms settings to take effect AOT1 4 to 20m4 source Stop bits 1 pa A0T2 4 to 20m4 source ADT3 0 to 20m source Modbus Output pp R ADT4 Oto 20m source Timeout 0010 mmiss AOTS 4 to 20mA source AOTE 4 to 20m4 source AOT Dto 10m4 source Set comms AOTS O to 10m source Figure 4 2 Communications configuration screen man 115
28. d stop bit 10 Use the tables below to work out the current communications settings or write to the registers using ModScan to change the settings to the desired values Note that the module transmission mode should be set to Modbus RTU Modbus address 40201 serial port transmission mode Setting Register Value Modbus RTU 0x0101 Modbus ASCII 8 data bits 0x0201 Modbus ASCII 7 data bits 0x0202 Modbus address 40202 serial port baud rate Setting Register Value 1200 0x000C 2400 0x0018 4800 0x0030 9600 0x0060 14400 0x0090 19200 0x00CO 28800 0x0120 38400 0x0180 57600 0x0240 76800 0x0300 115200 0x0480 Modbus address 40203 serial port parity and stop bit Parity Setting Register s High Byte Value None 0x00 Odd 0x11 Even 0x22 Stop bit Setting Register s Low Byte Value 1 stop bit 0x11 2 stop bits 0x22 11 Once the new comms setting are correct be sure to change the address switches back to a non zero setting for normal operation Page 34 June 2011 115S Serial I O Module User Manual Appendix D Specifications EMC Approval EN 55024 1998 EN 61000 3 2 2002 EN 61000 3 3 2002 EN 55022 1998 FCC Part 15 Operating temperature 40 to 60 deg C range Power supply 10 8 30 0 VDC Model Dependent Check 13 8V 24VDC nom rear label for actual operating voltages Supply current
29. dbus type RTU ASCH with 8 data bits ASCII with 7 data bits Note that the configuration software only supports Modbus RTU A Modbus Master can select ASCII protocol by writing to the appropriate register See Appendix A Baud rate 1200 2400 4800 9600 14400 19200 28800 38400 57600 76800 115200 Parity none odd even Stop bits 1 or 2 The modules are fitted with a termination switch for the RS485 Set this switch only on the last module in a multi drop RS485 configuration The ELPRO E Series software is used to configure the 115S modules as part of an E Series network The hardware set up for items such as expected pulse rates and analog signals is also available through this software When used as a Modbus only device stand alone configuration software cfg 1158_Vx xx exe is available to set up the modules All required software may be downloaded from the ELPRO website Page 10 June 2011 115S Serial VO Module User Manual 2 Installation All connections to the module should be SELV only Normal 110 220 240V mains supply should not be connected to any input terminal of the module 2 1 General installation Several 115S modules may be connected to one Master E Series Radio via RS485 multi drop connection as shown in Figure 2 1 Ensure there are good connections between the 115S units and the master and a separate Earth connected to the GND terminal on the front Terminal block of each module 2 5 sqmm 12 g
30. ded Terminate the last 115S module in the multi drop setup as shown in Figure 2 4 Up terminate Termination iss M switch up Down unterminated ON terminated RS485 termination switch Figure 2 4 RS485 multi drop connection and termination only use external termination for the master if it does not have internal termination Page 12 June 2011 115S Serial VO Module User Manual 2 2 Signal Connections All connections to the module should be SELV only Normal 110 220 240V mains supply should not be connected to any input terminal of the module 2 2 1 Digital Inputs and Pulsed Inputs The 1155 11 supports 16 digital signals and the 1158 12 and 1158 13 support 8 digital signals Additionally digital inputs DIO1 4 on the 1158 11 operate as pulse inputs Digital output signals share the same terminals as the Digital input signals marked DIO1 8 and DIO1 16 on the 1158 11 module A digital input is activated by connecting to EARTH either by voltage free contact or by a transistor switch Refer to Figure 2 5 115S Module D DIO1 Voltage free contact D DIO2 e Transistor switch device s e ol EARTH V Figure 2 5 Connection of digital inputs man 1158 1 15 docx Page 13 115S Serial VO Module User Manual 2 2 2 Digital Outputs and Pulsed Outputs The 1155 11 supports up to 16 digital outputs shared with the digital input function on the same terminals The 1158 12 and 1158 13 both
31. duced accuracy for less than 4mA in 105 1 Page 30 June 2011 115S Serial I O Module User Manual 4 4 1 1 Single ended voltage input If the 1155 12 is to measure voltage with respect to ground choose the Single ended voltage input page as shown in Figure 4 5 Remove the access panel from the front of the 1155 12 case to gain access to the dip switches Replace the access panel after setting the switches Set the switches according to the picture shown The unit should be orientated with the 20 way connector towards you T 115S CFG File Format Help HEX DEC Connect Comms Pulsed Outputs Setup Single ended Voltage input Differential Voltage input Single 4 gt 1155 Detected DIP switches 1155 12 AIN IV DIP switches set Analog input module Voltage single ended Save configuration AIN1 O to SV AIN2 0 to 5V AIN3 0 to 10 AIN4 O to 10 Oto5 Otol0 T1to5v AINS 1 to 5V AINE 1 to 5V AIN 0 to 10 AINS 0 to 10 C Y 3 Firmware version 01 03 PCB Revision 1 14 PCB Serial Number 11051888 Update Status Panel E Ol ALL Read from 1155 gt Figure 4 5 Setup page for single ended voltage input Once the dip switches on the unit are set tick the checkbox on the form and click Save configuration Check the 1155 Detected panel to ensure that the analog mode has been updated to Voltage single ended Clicking Read from 115S will read the scal
32. e pulse out target may be set by clicking the Edit Targets button Pulses will be produced until the count reaches the target 5 2 115S 12 module The I O terminal block for the 1158 12 is shown in Figure 5 3 ho F c SS oe pe Ba DIO ALS Al 1 Al 1 Al 2 Al 2 Al 3 Al 3 Al 4 Al 4 A ALS 8 Earth 24 Al1 Al2 AI3 Al4 AIS Al6 Al7 Al8 GND 24 OOdddddddddddHHHddda Figure 5 3 I O terminal block for 1155 12 Pulse outputs coincide with DIO terminals 1 8 The operation of the 1155 12 may be confirmed using the configuration software Start the software as described in section 4 and choose the 4 N Check page as shown in Figure 5 4 man 1158 1 15 docx Page 41 1158 Serial I O Module User Manual y cfg_115 DAS File Format Help Differential Voltage input Single ended Current Input Differential Current Input AIN Check 1155 Detected Digital outputs Digital inputs Pulse Output count Dy DIO1 0000 DI DIO2 0000 DIO3 BIOS 0000 DIO4 0000 DIOS 0000 AIN1 4 to 20m DIOG 0000 AIN2 4 to 20m DIO 0000 AINS 4 to 20m4 DIOS 0000 AIN4 4 to 20m AINS 4 to 20m4 AINE 4 to 20m AIN 4 to 20m4 Analog Inputs Pulse Dutput Target AINS 4 to 20m4 a 1155 12 AIN DIO1 DID2 DIO3 DIDA DIOS DIOG DIO DIOS Analog input module Current single ended 53533333339 010 22 2 2 DIO1 0000 he 0000 Firmware version 01 04 0000 PCB Revision 1 14 DIO4 0000 PCB Serial Number 1105189
33. ection 5 4 for hex to decimal conversion The analog channel can output over scale up to 150 corresponding to register value 65 536 hex FFFF For 4 20mA signals the channel can output under scale down to OmA from a register value of 8 192 hex 2000 or less Note that the over scale output is limited by the maximum levels capable of the 115S module 12V or 24mA man_115S_1 15 docx Page 9 115S Serial I O Module User Manual 1 1 6 Communications The 115S modules have two communication ports RS232 and RS485 The RS485 port communicates using E Series protocol Both ports support Modbus protocol The RS232 port is intended for configuration The RS485 port is intended for normal operation and can be used in a multi drop setup There are two address switches on the base of the module When the switches are set within the range 01 99 the module uses Modbus protocol on the RS485 port with the Modbus address defined by the switches Setting both address switches to 00 configures the module to use E Series protocol on the RS485 port Whenever these address switches are changed the unit should be reset by disconnecting power Note When configured for E Series protocol the maximum number of expansion modules per radio is 10 as each module requires 3 addresses When using E Series protocol the port settings are fixed at 9600 baud 8 data bits no parity 1 stop bit The Modbus communications settings are configurable as follows Mo
34. ed or powered by the 1158 24V loop supply Note The module is configured at the factory for this type of input To change the input configuration refer to section 4 4 WARNING Ensure correct DIP switch positions AND software configuration has been completed for each analogue input BEFORE connecting external signals to the 1155 12 module man 1158 1 15 docx Page 15 115S Serial I O Module User Manual 2 2 3 2 Floating Differential Mode mA Inputs Differential mode current inputs should be used when measuring a current loop which cannot be connected to earth or ground This allows the input to be connected anywhere in the current loop Common mode voltage can be up to 27VDC Up to four loops can be connected to terminal pairs AIN1 AIN2 AIN3 AIN4 AINS AIN6 AIN7 AIN8 the former terminal is ve and the latter ve The diagram in Figure 2 8 indicates how to connect devices for differential mode current inputs 1155 12 Module ALS 24V ol AIN1 g I p A as 2 AIN3 g i o Loop powered sensor Power supply Externally powered sensor ua AGND V Figure 2 8 Connections for differential current inputs Note The module configuration needs to be changed for this type of input To change the input configuration refer to section 4 4 WARNING Ensure correct DIP switch positions AND software configuration has been completed for each analogue input BEFORE connecting external signa
35. egisters 30017 30018 Pulse input count 2 Input registers 30019 30020 Pulse input count 3 Input registers 30021 30022 Pulse input count 4 Input registers 30023 30024 Pulse input rate 1 Input registers 30001 Pulse input rate 2 Input registers 30002 Pulse input rate 3 Input registers 30003 Page 46 June 2011 115S Serial I O Module User Manual Data Modbus I O Type Modbus Addresses Pulse input rate 4 Input registers 30004 Maximum input pulse rate 1 Input registers 30101 Maximum input pulse rate 2 Input registers 30102 Maximum input pulse rate 3 Input registers 30103 Maximum input pulse rate 4 Input registers 30104 Pulse output count 1 Input registers 30009 Pulse output count 2 Input registers 30010 Pulse output count 3 Input registers 30011 Pulse output count 4 Input registers 30012 Pulse output count 5 Input registers 30013 Pulse output count 6 Input registers 30014 Pulse output count 7 Input registers 30015 Pulse output count 8 Input registers 30016 Pulse output target 1 Holding registers 40009 Pulse output target 2 Holding registers 40010 Pulse output target 3 Holding registers 40011 Pulse output target 4 Holding registers 40012 Pulse output target 5 Holding registers 40013 Pulse output target 6 Holding registers 40014 P
36. es out of the unit if any and display them in the scales grid Note that the dip switches should be set correctly for this result to be relevant Choose the desired scale for each channel in the Scale box Click the Save scales to 1158 button and check that the scales are updated in the 1155 Detected panel man 1158 1 15 docx Page 31 115S Serial I O Module User Manual 4 4 1 2 Differential voltage input The 1155 12 can be configured to measure differential voltage Neighbouring channels serve as reference voltages in this mode The four differential pairs are AIN1 AIN2 AIN3 AIN4 AIN5 AIN6 and AIN7 AIN8 Note If mapping Differential Voltage inputs using the Elpro E Series Configuration software only map the Odd inputs E g AIN1 for the first Differential input AIN3 for the second AINS for the third and AIN7 for the fourth If using Modbus all registers can be read but only the odd registers holds the values i e 30001 for AIN1 AIN2 30003 for AIN3 AIN4 30005 for AINS AIN6 and 30007 for AIN7 AIN8 Choose the page to configure the 115S 12 for differential voltage input as shown in Figure 4 6 Remove the access panel from the front of the 115S 12 case to gain access to the dip switches Replace the access panel after setting the switches Set the switches according to the picture shown The unit should be orientated with the 20 way connector towards you TE 115S CFG File Format Help HEX DEC Connect
37. fies the maximum query and response data parameters for the 1158 modules See the Gould Modbus Protocol Reference guide PI MBUS 300 Rev B for more detail Function Description Maximum Data Size code 1 2 Read coil input status 1160 coils inputs 3 Read holding output registers 145 registers 4 Read input registers 145 registers 5 Force single coil 1 coil 6 Set single register 1 register 7 Read exception status 8 coils 8 Loopback test N A 9 10 NOT SUPPORTED NOT SUPPORTED 11 Communications event counter N A 12 14 NOT SUPPORTED NOT SUPPORTED 15 Force multiple coils 1160 coils 16 Set multiple registers 145 registers 17 255 NOT SUPPORTED NOT SUPPORTED Table B 1 Supported Modbus functions and limitations for 1158 modules Page 52 June 2011 115S Serial I O Module User Manual Appendix C Comms Recovery If the communications setting of the 115S has been forgotten or mistakenly set there is a way of recovering serial communications with the 115S 115S firmware versions 1 04 and earlier require ModScan to do this With later firmware versions this can be done using the configuration software cfg_115S_Vx xx exe Procedure for recovering communications with recent firmware V1 05 and later 1 Set the Modbus address switches to 00 This fixes the communications setting to Modbus RTU 9600 baud no parity and one stop bit Connect a standard straight through RS232 cable
38. hen needs to be reset for the settings to take effect Also the module must be operating in MODBUS mode otherwise the reset outputs feature is disabled so the modules address must be set to something other than 00 If using the modules in ELPRO E Series mode the Outputs also have a reset feature that can be configured within the E Series Configuration Utility Page 26 June 2011 115S Serial I O Module User Manual 4 2 3 Configurable ACK Timeout All communications between Elpro devices using Elpro Protocol is two way communications The initiating module sends a message to an end device and expects to get a response within a given time period this response is called an acknowledgement If this acknowledgment is not received in the allotted timeframe the message is retried up to 4 times with a random 0 5 seconds delay between each retry If all retries are not acknowledged then a communications fail can be flagged Typically the 115S expansion I O modules are used with 105U 905U I O radios and the longer Acknowledge Timeouts are not required If using the modules with Elpro modems or third party devices were the acknowledgement is likely to take longer than 5 seconds then a configurable Ack time can be implemented to overcome these timing issues E g Communication path may have a number of repeaters or be going through a network with longer timeframes GSM or Ethernet Networks Note The Configurable Acknowledge timeout is only
39. igure 2 13 Connection for voltage output configuration Page 20 June 2011 115S Serial VO Module User Manual 3 Configuration The 115S serial expansion modules can be configured as expansion I O for the ELPRO radio modules When configured like this the module communicates using standard ELPRO protocol which works on a Change of State concept like all other ELPRO radio modules The module can also be configured as a Standard MODBUS Slave device which operates by responding to poll messages from a MODBUS Master DCS SCADA PLC Etc 3 1 ELPRO Expansion I O configuration Use the ELPRO Configuration utility to configure the 115S module to communicate to 105U and 905U radio modules Ensure the Address switches are set to 00 for ELPRO protocol mode Refer to section 2 1 2 for details on setting the address switches The ELPRO Configuration utility allows you to configure systems consisting of a mixture of ELPRO Module types The software can be downloaded from the ELPRO web site or from the ELPRO Product CD included with your device 115S expansion I O module can only be added to the software via the Serial Units branch of a radio module see Figure 3 1 below If using the module as a standalone serial device without radios you will need to add a dummy radio module to the software and then add all serial module to this dummy modules Serial Units branch Refer to your radio module user manual for an explanati
40. ls to the 1155 12 module Page 16 June 2011 115S Serial I O Module User Manual 2 2 3 3 Floating Differential Voltage Inputs Differential voltage inputs allow a voltage to be measured when it cannot be referenced to earth or ground The diagram in Figure 2 9 shows how to connect differential voltage inputs The module has a 27V common mode input range 1155 12 Module ALS 24V ol AIN1 e AIN2 ua AIN3 e AIN4 Sensors with e voltage signals o ol AGND V Figure 2 9 Connection for differential voltage input mode Note The module configuration needs to be changed for this type of input To change the input configuration refer to section 4 4 WARNING Ensure correct DIP switch positions AND software configuration has been completed for each analogue input BEFORE connecting external signals to the 115S 12 module 2 2 3 4 Single ended Voltage Input Single ended voltage inputs allow twice as many inputs as differential mode This mode is useful when one end of the input voltage can be connected to the ground of the 1158 module Figure 2 10 shows connections for single ended voltage input man 1158 1 15 docx Page 17 115S Serial I O Module User Manual 1155 12 Module ALS 24V Sensor with voltage AIN1 signal Figure 2 10 Connection for single ended voltage input Note The module configuration needs to be changed for this type of input To change the input configuration refer to section 4 4
41. me 8 Input registers 30116 Page 48 June 2011 115S Serial I O Module User Manual Data Modbus I O Type Modbus Addresses Analog inputs 1 Input registers 30001 Analog inputs 2 Input registers 30002 Analog inputs 3 Input registers 30003 Analog inputs 4 Input registers 30004 Analog inputs 5 Input registers 30005 Analog inputs 6 Input registers 30006 Analog inputs 7 Input registers 30007 Analog inputs 8 Input registers 30008 Module supply voltage Input registers 30033 Analog supply voltage 24V Input registers 30034 Serial port transmission mode Input registers 30201 Serial port baud rate Input registers 30202 Serial port parity and stop bit Input registers 30203 Modbus Comms Fail Timeout Input registers 30204 ELPRO ACK Timeout Input registers 30205 Module Firmware version Input Register 30801 0x4000 8V 0xC000 40V Firmware earlier than 2 00 is 0x4000 8V 0xC000 16V 0x4000 12V 0xC000 36V Timeout values in 32mSec increments 0x0204 Ver 2 04 Note If using Differential Voltage or Current inputs only the odd inputs should be used i e AIN1 for the first input AIN3 for the second AINS for the third and AIN7 for the fourth man_115S_1 15 docx Page 49 115S Serial I O Module User Manual
42. n a final enclosure rated IP54 before use outdoors The Equipment shall be powered using an external Listed Power Supply with LPS outputs or a Class 2 Power Supply Ex Hazardous Location Notices This device complies with Ex nA IIC T5 Ge 40C lt Ta lt 60C WARNING EXPLOSION HAZARD Do not disconnect equipment unless power has been switched off or the area is known to be non hazardous Page 2 June 2011 115S Serial VO Module User Manual Limited Lifetime Warranty Disclaimer and Limitation of Remedies ELPRO products are warranted to be free from manufacturing defects for the serviceable lifetime of the product The serviceable lifetime is limited to the availability of electronic components If the serviceable life 1s reached in less than three years following the original purchase from ELPRO ELPRO will replace the product with an equivalent product if an equivalent product is available This warranty does not extend to failures caused by operation of the equipment outside the particular product s specification or use of the module not in accordance with this User Manual or abuse misuse neglect or damage by external causes or repairs alterations or modifications undertaken other than by an authorized Service Agent ELPRO s liability under this warranty is limited to the replacement or repair of the product This warranty is in lieu of and exclusive of all other warranties This warr
43. nect Comms Pulse Inputs Setup Pulsed Outputs Setup DIO Check 1155 Detected Digital outputs Digital inputs Pulse Input count Pulse Output count ON DIO1 lo DIO1 C DIO2 a DIO2 DIO3 a DIO3 DIO4 a DIO4 Dog 0 0 0 1155 11 DIO ag E DIO1 DID2 DID3 DID4 Digital 1 0 module O 2 2S nas DIOG sau Pulse Input rate DIO DIO DIOS DIOS DIO10 DIO11 DID12 DIO13 DIO14 DID15 DIO16 y 3 3 e DID8 Y 3 DIO1 16384 DIO2 esa Pulse Output Target d 93 A Doo o Firmware version 01 04 DIOS 16384 nine PCB Revision 1 24 DIO4 eae PCB Serial Number 03061113 DIO3 DIO4 0 0 0 Update Status Panel DIOS 0 0 0 0 y 3 O DIOG DIO7 Edit Targets DIOS Figure 5 2 Check the operation of the 1155 11 module using the DIO Check page E E A ae oj ol Page 40 June 2011 115S Serial I O Module User Manual Test the digital outputs by setting the select buttons to ON or OFF this will force the DO to the selected state Digital inputs are reflected in the software by blacking ON or greying OFF of the associated label in the Digital Inputs column The pulsed input count values are shown as well as the pulse rate The rate can be viewed in decimal or hexadecimal and represents a fraction of the maximum pulse rate where hex 4000 is 0 and hex C000 is 100 of the maximum pulse rate The pulse output count values are also shown Th
44. on on how to create the radio module configuration Once you have created the new radio module configuration or a radio module was already present you can add a serial module Select the radio module that you want to connect the 115S serial module to and select the Serial Units item Select Add a new Serial Unit to create the new configuration or select Load a New Serial Unit to load the configuration from an existing module See Figure 3 1 amp 3 2 below man 1158 1 15 docx Page 21 115S Serial I O Module User Manual H E Series Configuration Utility File View Utilities Unit Options Help i Test Eh Units Create Serial Units iy 105 G 1 i 905 142 FJ Mappings UpdateTimes D Load a New Serial Unit Dutput Reset Times Sensitivities RR Pulsed Inputs JA Pulsed Outputs Setpoints Debounce gt Serial Units i 305 386 Comm Port 1 Selected Version 1 40 0 Figure 3 1 Configuration of 115S modules using ELPRO Configuration Utility Select the Unit Type When you select Add a new Serial Unit you di will need to select the unit type Select the correct module type here 1155 13 AOT Figure 3 2 Select the unit type Finally you will be prompted to select the module address You can choose to allow the configuration software to select an unused address for you or you can select the module address manually Serial Module address must be in the range 96 to 12
45. ou T 115S CFG File Format Help HEX DEC Connect Comms Pulsed Outputs Setup Voltage Output Current Output AOT Check 1155 Detected DIP switches 1155 13 40T fetes sates i i ps ae a Voltage Save configuration ADT1 0 to 5V AOT2 0 to 5V ADT3 0 to 10V AOT4 Dto 10V Oto5 Otoiy 1to5Y AOTS 1 to 5V AOTE 1 to 5V AOT Dto 5V AOTS 0 to 5V e F O Y 3 Firmware version 01 04 PCB Revision 1 24 PCB Serial Number 03061302 Update Status Panel 2 E 3 02 20 3932 Save scales to 1155 ALL Read from 1155 Figure 4 9 Voltage output setup page Once the dip switches on the unit are set tick the checkbox on the form and click Save configuration Check the 715S Detected panel to ensure that the analog mode has been updated to Voltage Clicking Read from 115S will read the scales out of the unit if any and display them in the scales grid Note that the dip switches should be set correctly for this result to be relevant Choose the desired scale for each channel in the Scale box Click the Save scales to 1158 button and check that the scales are updated in the 5S Detected panel man 1158 1 15 docx Page 37 115S Serial VO Module User Manual 4 5 2 Current output Current outputs may be selected in the scales 0 to 10mA 0 to 20mA or 4 to 20mA For each scale the minimum to maximum signal levels are represented by 4000 hex to C000 hex Table 4 4
46. shows how signals from other ELPRO products translate to 1158 13 current levels 1158 13 105 1 105 2 105 G 1158 13 Current scale Input current Input current Register value Output current mA mA hex mA 0 to 10mA 4 4 4000 0 20 20 C000 10 0 to 20mA 4 4 4000 0 20 20 C000 20 4 to 20mA N A 0 2000 0 oF 2 3000 2 4 4 4000 4 20 20 C000 20 Table 4 4 Compatibility of other ELPRO products with 115S 13 voltage outputs Reduced accuracy for less than 4mA in 105 1 June 2011 Page 38 115S Serial I O Module User Manual To configure the 1155 13 for current output select the page as shown in Figure 4 10 Remove the access panel from the front of the 1155 12 case to gain access to the dip switches Replace the access panel after setting the switches Set the switches according to the picture shown The unit should be orientated with the 20 way connector towards you T 115S CFG File Format Help HEX DEC Connect Comms Pulsed Outputs Setup Voltage Output Current Output AOT Check 1155 Detected DIP switches 1155 13 40T i A a A nies pi sji Current Save configuration ADT1 O to 10m4 source ADT2 0 to 10m4 sink AOT3 0 to 20m4 source Scale AOT4 0 to 20m sink Dto 10m4 Oto 20m4 4 to 20m4 Source Sink AOTS 4 to 20m source AOTE 4 to 20m4 sink AOT O to 20mA4 source AOTS O to 20m4 sink ADTI G a Cc G C ADT2 ADT3 AOT4 ADT5 ADOT
47. t if any and display them in the scales grid Note that the dip switches should be set correctly for this result to be relevant Choose the desired scale for each channel in the Scale box Click the Save scales to 1158 button and check that the scales are updated in the 715S Detected panel 4 5 1158 13 configuration 4 5 1 Voltage output Voltage outputs may be selected in the scales 0 to 5V 0 to 10V or 1 to 5V For each scale the minimum to maximum signal levels are represented by 4000 hex to C000 hex Table 4 3 shows how signals from other ELPRO products translate to 1155 13 voltage levels 1158 13 105 1 105 2 105 G 1158 13 Voltage scale Input current Input current Register value Output voltage mA mA hex V 0 to 5V 4 4 4000 0 20 20 C000 5 0 to 10V 4 4 4000 0 20 20 C000 10 1 to 5V N A 0 2000 0 2 2 3000 0 5 4 4 4000 1 20 20 000 5 Table 4 3 Compatibility of other ELPRO products with 115S 13 voltage outputs Reduced accuracy for less than 4mA in 105 1 June 2011 Page 36 115S Serial I O Module User Manual To configure the 1155 13 for voltage output select the page as shown in Figure 4 9 Remove the access panel from the front of the 1155 12 case to gain access to the dip switches Replace the access panel after setting the switches Set the switches according to the picture shown The unit should be orientated with the 20 way connector towards y
48. tch devices Digital outputs are open collector transistor outputs able to switch loads up to 30VDC 200mA If you have wired an input output channel as an input it is recommended that you do not write values to it as an output No electrical damage will occur if you attempt to use a channel wired as an input as an output or vice versa however the I O system will not operate correctly We recommend that the required digital inputs be assigned consecutively from channel 1 Then use the remaining channels as digital outputs 1 1 2 Pulsed outputs The first eight digital channels on each 115S module can be used as pulse outputs The maximum output frequency is 50Hz A pulse output on the 115S will output the number of pulses equal to the register value sent by the master When the master sends a new register value the 115S will output additional pulses until the output count is the same as the new value Three register values are associated with creating each pulsed output e The Count keeps a tally of how many pulses have been output this is a 16 bit register and overflows to 0 e The Target is set by the master and is the trigger for pulses to be created The digital channel outputs pulses until the Count value reaches the Target value If the Target register is set to 0 the pulses stop and the Count register is cleared man 1158 1 15 docx Page 7 115S Serial I O Module User Manual e The Update Time is the interval in which
49. the 1155 12 current readings translate to outputs in other ELPRO products 115S 12 115S 12 105 G 105 1 105 3 Current scale Input current Register value Output current Output current mA hex mA mA 0 to 10mA 0 4000 4 4 10 C000 20 20 0 to 20mA 0 4000 4 4 20 C000 20 20 4 to 20mA 0 2000 0 5 0 4 4000 4 4 20 C000 20 20 Table 4 2 Compatibility of 1158 12 current inputs with other ELPRO products Reduced accuracy for less than 4mA in 105 1 man 1158 1 15 docx Page 33 115S Serial I O Module User Manual 4 4 2 1 Single ended current input The 1155 12 can also measure current input To measure current with respect to ground choose the Single ended current input page as shown in Figure 4 7 Remove the access panel from the front of the 1155 12 case to gain access to the dip switches Replace the access panel after setting the switches Set the switches according to the picture shown The unit should be orientated with the 20 way connector towards you T 115S CFG File Format Help HEX DEC Single ended Voltage input Differential Voltage input Single ended Current Input Differential Current Inpi 41 1155 Detected DIP switches 1155 12 AIN IV DIP switches set Analog input module Current single ended Save configuration AIN1 0 to 10m4 AIN2 O to 10m AIN O to 10m Scale AIN4 O to 20m4 Dto10mA Dto 20mA 4 to 20mA AINS 0 to 20m AINE 0 to 20mA
50. the 115S expects to receive updates to the Target value The module will output enough pulses for the Count to reach the Target within the update time The output pulse rate is determined by the update time and the difference between the count and the target If the calculated pulse rate is more than the maximum rate 50Hz the 1158 will output pulses at the maximum rate At the end of the update time the count value will be less than the target The 115S will then calculate the new required pulse rate for the next update period based on the difference between Count and Target values If the calculated pulse rate is greater than around three times the maximum rate pulses are not output The Count value will be set to the value of the Target without any pulses output Pulses will be output again when the calculated pulse rate falls within the maximum possible rate 1 1 3 Pulsed inputs The first four digital channels on the 115S 11 module can be used as pulsed inputs The maximum input pulse frequency is 1 KHz The pulse input channel calculates two register variables each of which can be read by the Modbus master e The Pulse Count is a count of the pulses detected on the channel since the 1158 powered up The pulse input counts are 32 bit values 2 x 16 bit registers a low and a high register and wrap around to zero on overflow e The Pulse Rate is a measure of the rate of pulses detected on the channel The pulse rate value is decim
51. the target The analog outputs can be viewed in decimal or hexadecimal and represents a fraction of the analog signal where hex 4000 is 0 and hex C000 is 100 The analog output values can be set by the user for testing and the output signal measured to confirm the analog operation If you are using hexadecimal values which is the easiest ensure the symbol precedes the value to denote a hex number Page 44 June 2011 115S Serial I O Module User Manual 5 4 Hexadecimal representation of voltage and current levels The voltage and current levels are represented as a fraction of the configured scale 4000 hex represents the minimum level in the scale and C000 hex represents the maximum level in the scale Levels and their hex representation are summarised in Table 5 1 for easy reference Voltage scale Current scale Hex Percent Dec 0 5V 0 10V 1 5V 0 10mA 0 20mA 4 20mA value value 0000 0 00 0 N A N A N A N A N A N A 0800 3 13 2048 N A N A N A NA N A N A 1000 6 25 4096 N A N A N A N A N A N A 1800 9 38 6144 N A N A N A N A N A N A 2000 12 50 8192 N A N A 0 00 N A N A 0 00 2800 15 63 10240 N A N A 0 25 N A N A 1 00 3000 18 75 12288 N A N A 4 0 0 N A N A 2 00 3800 21 88 14336 N A N A 0 75 N A N A 3 00 4000 25 00 16384 0 00 0 00 1 00 0 00 0 00 4 00 4800 28 13 18432 0 31 0 63 1 25 0 63 1 25 5 00
52. ties Advanced SXM menu The software is available from ELPRO s Product CD or web page 4 1 Connecting to the 115S module To use the configuration software perform the following steps e Connect the 115S to the PC COM port with a standard serial cable straight through DB9 female to DB9 male See Appendix for wiring e Set the address switches to 00 e Supply power to the 115S via the and terminals on the bottom of the module 10 8 30 VDC Model Dependent Check rear label for actual operating voltages e Start the configuration software on your PC or laptop cfg_115S_Vx xx exe 115S CFG File Format Help Hexfpec Connect 1155 Detected MODBUS RTU Communications Port Comi Z Baud Rate 9600 Zi None X Stop bits Slave address 1 Connect to 1155 5 7 Firmware version x sx PCB Revision Rx x amp PCB Serial Number 88888888 Parity Figure 4 1 Main configuration screen Page 24 June 2011 115S Serial I O Module User Manual Set the Port setting to match the computer com port you have connected to Set the Slave Address to match the address switch setting of the 115S If you are using address 00 for ELPRO Protocol set the Slave Address to 100 e Set the communications parameters The default communications parameters are Baud rate 9600 Parity NONE Stop bits 1 Click the button labelled Connect to 1155 If you are unable to communi
53. tion of voltage and current levels man 1158 1 15 docx Page 45 115S Serial VO Module User Manual Appendix A Modbus address map A 1 1158 11 Data Modbus I O Type Modbus Addresses Digital input 1 Input status 10001 Digital input 2 Input status 10002 Digital input 3 Input status 10003 Digital input 4 Input status 10004 Digital input 5 Input status 10005 Digital input 6 Input status 10006 Digital input 7 Input status 10007 Digital input 8 Input status 10008 Digital input 9 Input status 10009 Digital input 10 Input status 10010 Digital input 11 Input status 10011 Digital input 12 Input status 10012 Digital input 13 Input status 10013 Digital input 14 Input status 10014 Digital input 15 Input status 10015 Digital input 16 Input status 10016 Digital output 1 Coil status 00001 Digital output 2 Coil status 00002 Digital output 3 Coil status 00003 Digital output 4 Coil status 00004 Digital output 5 Coil status 00005 Digital output 6 Coil status 00006 Digital output 7 Coil status 00007 Digital output 8 Coil status 00008 Digital output 9 Coil status 00009 Digital output 10 Coil status 00010 Digital output 11 Coil status 00011 Digital output 12 Coil status 00012 Digital output 13 Coil status 00013 Digital output 14 Coil status 00014 Digital output 15 Coil status 00015 Digital output 16 Coil status 00016 Pulse input count 1 Input r
54. ulse output target 7 Holding registers 40015 Pulse output target 8 Holding registers 40016 Modbus Output Timeout Holding registers 40204 Pulse out update time 1 Input registers 30109 Pulse out update time 2 Input registers 30110 Pulse out update time 3 Input registers 30111 Pulse out update time 4 Input registers 30112 Pulse out update time 5 Input registers 30113 Pulse out update time 6 Input registers 30114 Pulse out update time 7 Input registers 30115 Pulse out update time 8 Input registers 30116 Module supply voltage Input registers 30033 Serial port transmission mode Input registers 30201 Serial port baud rate Input registers 30202 Serial port parity and stop bit Input registers 30203 Modbus Comms Fail Timeout Input registers 30204 ELPRO ACK Timeout Input registers 30205 Module Firmware version Input Register 30801 0x4000 8V 0xC000 40V Firmware earlier than 2 00 is 0x4000 8V 0xC000 16V a gt de Timeout values in 32mSec increments 0x0204 Ver 2 04 man 1158 1 15 docx Page 47 115S Serial I O Module User Manual A 2 1158 12 Data Modbus I O Type Modbus Addresses Digital input 1 Input status 10001 Digital input 2 Input status 10002 Digital input 3 Input status 10003 Digital input 4 Input status 10004 Digital input 5 Input status 10005 Digital input 6 Inp
55. unt 65535 Analog Inputs Input voltage range 0 12V Voltage resolution 16 bits Input current range 0 24mA Current resolution 16 bits Input impedance voltage 100k Input impedance current 100ohm Common mode voltage 27VDC range Calibrated accuracy 0 10 Analog Outputs Output voltage range 0 12V Voltage resolution 12 bits Output current range 0 24mA Total output current 160mA Current resolution 12 bits Calibrated accuracy 0 10 Table D 1 115S Specifications 115S 11 12 13 Digital inputs outputs 16 8 8 Pulse outputs 8 8 8 Pulse inputs 4 Analog inputs 8 Analog outputs 8 Table D 2 1158 module types and I O Page 56 June 2011 115S Serial I O Module User Manual Appendix E RS232 Wiring The RS232 connection to the 115S modules requires a standard straight through serial cable modem cable The wiring is shown in Figure E 1 TN E 2 2 RD 3 3 RD TD 5 5 TD SG 7 7 SG RTS 3 8 RTS CTS 6 CTS DSR 4 DSR DTR 1 DIR DCD DCD SA 115S PC DB9 DB9 MALE FEMALE Figure E 1 Wiring for RS232 cable for PC 115S communications man 1158 1 15 docx Page 57
56. ut status 10006 Digital input 7 Input status 10007 Digital input 8 Input status 10008 Digital output 1 Coil status 00001 Digital output 2 Coil status 00002 Digital output 3 Coil status 00003 Digital output 4 Coil status 00004 Digital output 5 Coil status 00005 Digital output 6 Coil status 00006 Digital output 7 Coil status 00007 Digital output 8 Coil status 00008 Pulse output count 1 Input registers 30009 Pulse output count 2 Input registers 30010 Pulse output count 3 Input registers 30011 Pulse output count 4 Input registers 30012 Pulse output count 5 Input registers 30013 Pulse output count 6 Input registers 30014 Pulse output count 7 Input registers 30015 Pulse output count 8 Input registers 30016 Pulse output target 1 Holding registers 40009 Pulse output target 2 Holding registers 40010 Pulse output target 3 Holding registers 40011 Pulse output target 4 Holding registers 40012 Pulse output target 5 Holding registers 40013 Pulse output target 6 Holding registers 40014 Pulse output target 7 Holding registers 40015 Pulse output target 8 Holding registers 40016 Modbus Output Timeout Holding registers 40204 Pulse out update time 1 Input registers 30109 Pulse out update time 2 Input registers 30110 Pulse out update time 3 Input registers 30111 Pulse out update time 4 Input registers 30112 Pulse out update time 5 Input registers 30113 Pulse out update time 6 Input registers 30114 Pulse out update time 7 Input registers 30115 Pulse out update ti
57. y the odd registers holds the values i e 30001 for AIN1 AIN2 30003 for AIN3 AIN4 30005 for AINS AIN6 and 30007 for AIN7 AIN8 Remove the access panel from the front of the 1155 12 case to gain access to the dip switches Replace the access panel after setting the switches Set the switches according to the picture shown The unit should be orientated with the 20 way connector towards you T 115S CFG File Format Help HEX DEC Differential Voltage input Single ended Current Input Differential Current Input AIN Check ir 1155 Detected DIP switches 1155 12 AIN jl IV DIP switches set Anao ni module Current differential Save configuration AIN1 0 to 10m4 AIN2 0 to 10m4 AIN3 0 to 20m4 Scale AIN4 O to 20m4 Dto 10m4 Oto 20m4 4 to 20m4 AINS 4 to 20m4 AINE 4 to 20m4 AINT AIN2 G gt Cc AIN7 O to 10mA AINS 0 to 10m4 AIN3 AIN4 AINS AINE Firmware version 01 03 PCB Revision 1 14 PCB Serial Number 11051888 Update Status Panel AIN AING ALL Read from 1155 Figure 4 8 Setup page for differential current configuration man 1158 1 15 docx Page 35 1158 Serial I O Module User Manual Once the dip switches on the unit are set tick the checkbox on the form and click Save configuration Check the 1155 Detected panel to ensure that the analog mode has been updated to Current differential Clicking Read from 115S will read the scales out of the uni
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