IP231 Industrial I/O Pack
Contents
1. FRONT VIEW w A B C D CONNECTORS 12 3 48 49 50 1 2 3 48 49 50 123 48 49 50 1 2 3 48 49 50 GN PC BOARD MODEL TRANS GP MODULE SCHEMATIC 1 2 3 48 49 50 1 2 3 48 49 50 1 2 3 48 49 50 1 2 3 48 49 50 lt oN FRONT PANEL A B C D TOP VIEW lt 9 19 233 4 gt m ilo A loli ilo q q 3 15 lt Ilo Tisi ilo 3 35 80 0 j 85 1 q q m 1 1111111110011111111111011 2 o t mmmmn y amp 57 lt ilo 8 5 o ma i 1 H i 1 m E q 4501 465A TRANS GP M 10 31 261 9 ECHANICAL DIMENSIONS AND SIMPLIFI ED SCH EMATIC NOTE DIMENSIONS ARE IN INCHES MILLIMETERS 182. INO LOGIC INTERFACE FPCA TERFACE P2 P1 DIGITAL TO DAC ANALOG OUTPUT INPUT s PARALLEL CONVERTER LATCH LATCH TOSENN CONTROL E CONTROL LOGIC ID CODES DIGITAL TO mE ANALOG OUTPUT INPUT CONVERTER LATCH LATCH k UE _ CHANNEL 15 on ANALOG COMMON BLOCK DIAGRAM 4502 001A NOTE ALL 16 CHANNELS ARE REFERENCED TO ANALOG GROUND TO AVOID GROUND LOOPS DO NOT CONNECT GROUNDED LOADS TO THE NEGATIVE SIDE OF THE OUTPUT FINGON LAdLNO SO IVNV ALISNSC HOSIH 9 9 SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE SEE NOTE 2 SEE NOTE 3 NOTES 1 2 3 IP MODULE CARRIER BOARD P2 N e R SOURCE LOAD R source CH7 LOAD 7 1 4 LLL R Y fo y Joe SOURCE p VL Vo Vo lt lt gt LOAD 15 4 A Riga EARTH GROUND CONNECTION AT ANALOG DIGITAL POWER SUPPLY TYPICAL P d SHIELD L COMMON COMMON ag LL eA SEE NOTE 1 SHIELDED CABLE IS RECOMMENDED FOR LOWEST NOISE SHIELD IS CONNECTED TO GROUND REFERENCE AT ONLY ONE END TO PROVIDE SHIELDING WITHOUT GROUND LOOPS ANALOG OUTPUT CONNECTION DIAGRAM ALL 16 CHANNELS ARE REFERENCED TO ANALOG COMMON AT THE IP MODULE TO AVOID GROUND LOOPS DO NOT CONNECT GROUNDED CHANNELS TO THE NEGATIVE SIDE OF THE OUTPUT VL lt VO DUE T
3. Typically each error component is much less than its maximum and all error components do not reinforce each other Thus typical errors are much less than that shown in the table above Calibrated Performance Accurate calibration of the IP231 can be accomplished through Software control by using calibration coefficients to adjust the analog output voltage Unique calibration coefficients are stored in the EEPROM as 1 4 LSB s for each specific channel Once retrieved the channel s unique offset and gain coefficients can be used to correct the data value sent to the DAC channel to accurately generate the desired output voltage Table 3 4 summarizes the maximum calibrated error combining the linearity and adjusted offset and gain errors Table 3 4 Maximum Overall Calibrated Error Max Linearity Max Offset Max Gain Max Total Error LSB Error LSB Error LSB Error LSB 99 2 0 0 25 0 25 2 5LSB 0 004 Thus correcting the value programmed to the DAC Channel Register using the stored calibration coefficients provides the means to obtain excellent accuracy Data is corrected using a couple of formulas Equation 1 expresses the ideal relationship between the value ideal_count written to the 16 bit DAC to achieve a specified voltage within the 10 to 10 Volt output range assuming Bipolar Offset Binary BOB data format see Section 2 for details Ideal_Count Count_Span Ideal_Volt_ Span Desired_Volt
4. 0 290 in 7 37 mm 50 pin female receptacle header Comm Con 8066 50G2 or equivalent 50 pin female receptacle header Comm Con 8066 50G2 or equivalent 33mA Typical 45mA Maximum 150mA Typical 200mA Maximum 133mA Typical 180mA Maximum 1 The maximum current draw assumes that the rated current of 5mA per channel is drawn Current draw will be reduced proportionately for high impedance output loads Maximum Vcc Rise Time 100m seconds ENVIRONMENTAL Operating Temperature 0 to 70 C Standard Version 40 C to 85 C E Versions Relative Humidity Storage Temperature Non Isolated Radiated Field Immunity Conducted R F Immunity CRF1 Electromagnetic Interference Immunity EMI Surge Immunity Electric Fast Transient EFT Immunity Electrostatic Discharge ESD Immunity 5 95 Non Condensing 55 C to 125 C Logic and field commons have a direct electrical connection Complies with EN61000 4 3 3 Vim 80 to 1000MHz AM amp 900MHz Keyed and European Norm EN50082 1 with no register upsets and analog output error is lt 0 5 of a 20V Complies with EN61000 4 6 3 V rms 150KHz to 80MHz and European Norm EN50082 1 with no register upsets and analog output error is lt 0 596 of a 20V No register
5. 2 and Ideal Zero Count remains 32 768 PROM Gain Error and PROM Offset Error are obtained from the EEPROM on the IP231 on a per channel basis Equation 3 can be written as 4 by making the listed substitutions Corrected Count 1 PROM Gain Error 262 144 Ideal Count 32 768 32 768 PROM Offset Error 4 4 Using equation 4 you can determine the corrected count from the ideal count For the previous example equation 2 returned a result 49 152 for the Ideal Count to produce an output of 5 Volts Assuming that a gain error of 33 and an offset error of 25 are read from the PROM on the IP231 for the desired channel substitution into equation 4 yields Corrected Count 1 33 262 144 49 152 32 768 32 768 25 4 49 147 8125 If this value rounded to 49 148 is used to program the DAC output following conversion to Hex the output value will approach 5 Volts to within the calibrated error specified in Table 3 4 1 LSB Note that the quantization error up to 0 5 LSB introduced by rounding to 49 148 is not included in the overall accuracy specification Calibration Programming Example The available bipolar range centered around 0 Volts is 10 to 10 Volts Assume it is necessary to program channel 0 with an output of 2 5 Volts 1 Write to the Transparent Mode register BASE 20H with data of FFFFH to select the Transparent Mode In this mode data written to the Chan
6. 2 7 to adjust the unique calibration characteristic and update each channel used or repeat steps 4 7 to update the value of a single channel Error checking should be performed on the calculated count values to insure that calculated values below 0 or above 65 535 decimal are restricted to those end points Note that the software calibration cannot generate outputs near the endpoints of the range which are clipped off due to the uncalibrated hardware i e the DAC SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE 4 0 THEORY OF OPERATION This section describes the basic functionality of the IP231 circuitry Review the block diagram shown in Drawing 4502 001 as you study the following paragraphs ANALOG OUTPUTS The field I O interface to the carrier board is provided through connector P2 refer to Table 2 3 Field analog outputs are NON ISOLATED This means that the field return output channel minus and logic common have a direct electrical connection to each other As such care must be taken to avoid ground loops and excessive output loading see Section 2 for connection recommendations Ignoring this effect may cause operation errors and with extreme abuse possible circuit damage Refer to Drawing 4502 002 for example analog output and grounding connections The fully populated board contains sixteen 16 bit DAC s IP231 16 one per channel This allows each channel to be independently pro
7. 35 56 37 38 39 40 41 42 43 44 45 46 47 48 49 50 TB1 MODEL 5025 552 TERMINATION PANEL SCHEMATIC DIMENSIONS ARE IN INCHES MILLIMETERS 1 re eee G RAIL DIN MOUNTING s SHOWN HERE TERMINATION Ur DIN EN 50035 32mm wa 5 ACROMAG PART a NUMBER 4001 040 T RAIL DIN MOUNTING 3 032 Cr SHOWN HERE 77 9 s DIN EN 50022 35mm TB1 j Q QQQQQQQQQQQQQQQQQQQQQQQQ QQOQQQQQQQQQQQQQQQQQQQQQQQ Pps T SCREWDRIVER SLOT FOR Ll mais REMOVAL FROM T RAIL 135 0 TOP VIEW SIDE VIEW NOTES 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 4501 464A TOLERANCE 4 0 020 40 5 1 3 5 7 9 111315 17 19 2123 25 27 29 31 33 35 37 39 41 43 45 47 49 wos A DDDDDDDDUDDUDDDDD 1210000 MODEL 5025 552 TERMINATION PANEL 58 5
8. 5 25 55 x SCHEMATIC MODEL 5025 550 x SIGNAL CABLE NON SHIELDED PIN 50 OF P1 amp P2 CONNECT TO P2 GROUND SHIELD P1 5o m P1 49 49 48 48 AVME9630 9560 MODEL 5025 552 47 47 CARRIER BOARD 1 0 TERMINATION 46 46 P3 OR P4 P5 P6 PANEL 45 45 44 44 43 43 Le gt 42 42 4 41 FEET 40 40 TOP VIEW 39 39 38 38 37 37 36 36 35 35 34 34 STRAIN 50 PIN 5 E RELIEF RIBBON CABLE BLACK LINE ON CABLE CONNECTOR E 1004 534 2002 261 INDICATES PIN 58 1004 512 30 30 29 29 28 28 27 27 26 26 25 25 24 24 23 23 22 22 POLARIZING 21 21 KEY 20 20 19 19 18 18 17 17 16 16 15 15 14 14 13 13 cuum PIN 1 12 12 aa 11 11 50 PIN Z 10 10 CONNECTOR PINON GABLE 1004 512 PIN 1 NO MARKINGS 7 7 1004 534 6 6 5 5 FRONT VIEW 4 4 3 3 NOTE SEVEN DIGIT PART NUMBERS ARE 2 2 ACROMAG PART NUMBERS XXXX XXX 1 1 4501 463A uA MODEL 5025 551 x SCHEMATIC MODEL 5025 551 x SIGNAL CABLE SHIELDED 17 SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE 1 2 34 56 7 8 9 1011 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 P1 1234 5 6 7 8 9 10 111213 14 15 16 17 18 19 20 2122 2324 25 26 27 28 29 30 31 32 33 34
9. For low impedance loads the IP231 can source up to 5mA but the effects of source and cabling resistance should be considered Output common is electrically connected to the IP module ground As such the IP231 is non isolated between the logic and field I O grounds Consequently the field I O connections are not isolated from the carrier board and backplane Care should be taken in designing installations without isolation to avoid noise pickup and ground loops caused by multiple ground connections This is particularly important for analog outputs when a high level of accuracy resolution is needed e g 16 bits Refer to Drawing 4502 002 for example output and grounding connections Contact your Acromag representative for information on our many isolated signal conditioning products that could be used to provide isolated voltage or current outputs when used in conjunction with the IP231 output module IP Logic Interface Connector P1 P1 of the IP module provides the logic interface to the mating connector on the carrier board This connector is a 50 pin female receptacle header Comm Con 8066 50G2 or equivalent which mates to the male connector of the carrier board AMP 173280 3 or equivalent This provides excellent connection integrity Threaded metric M2 screws and spacers are supplied with the IP module to provide additional stability for harsh environments see Drawing 4501 434 for assembly details Field and logic side connectors
10. Read Write Base 00H to 1EH The IP231 contains sixteen 16 DAC Channel Registers in the space Table 3 1 lists each of the DAC Channel registers with their corresponding hex address in I O space memory The DAC Channel registers are read write registers and are used to hold the 16 bit digital value that are output to the Digital to Analog Converter s DAC s The 16 bits of DAC data are written to the DAC register with the least significant bit at data bit O The data format is Bipolar Offset Binary BOB see Section 2 for details The contents of the DAC Channel registers are transferred to their corresponding converter input buffer serially This serial data transfer take 2us Thus a new write of the same DAC register can be performed no sooner then 2us after the previous write A DAC Write Status register at base address plus 26H is available as a write operation busy status indicator The channels Status bit will be set low upon initiation of a write operation and will remain low until the requested write operation has completed New write accesses to the same DAC Channel register should not be initiated unless its write busy status bit is set high Read of the DAC Channel register should also wait 2us after a write to avoid read of the register as it is being serially shift out RESET CONDITION All output channels are set to 0 Volts Note The reset function resets only the DAC output latch of the input double buffer T
11. are keyed to avoid incorrect assembly The pin assignments of P1 are standard for all IP modules according to the Industrial I O Pack Specification see Table 2 4 Note that the IP231 does not utilize all of the logic signals defined for the P1 connector Logic lines NOT USED used by this model are indicated in BOLD ITALICS Table 2 4 Standard Logic Interface Connections P1 Pin Description Number Pin Description Number GND GND 2 CL 5V Reset 3 mw sa Dset 2 Do 5 DMAReqo 30 Do2 D4 Dos 9 10 rose 3 f RESERVED mer 2 A 4 D15 INTReqi 44 85e _ 4 Bst 21 STROBE 4 j 2 Aa 4 2 _ AC 1 4 24 RESERVED 4 Asterisk is used to indicate an active low signal BOLD ITALIC Logic Lines are NOT USED by this IP Model 3 0 PROGRAMMING INFORMATION This board is addressable in the Industrial Pack I O space to control the level of analog outputs in the field and to read offset and gain calibration coefficients The I O space may be as large as 64 16 bit words 128 bytes using address lines A1 A6 The IP231 uses this address space for enabling control signals for DAC functions and addressing offset and gain calibration coefficients used by the software to adjust the accuracy of the output range The calibration coefficients are accessed via reads from EEPROM in t
12. panel 5025 552 from the rear of the card cage and to AVME9630 9660 boards within card cage via flat 50 pin ribbon cable cable Model 5025 550 X or 5025 551 Schematic and Physical Attributes See Drawing 4501 465 Field Wiring 100 pin header male connectors 3M 3433 D303 or equivalent employing long ejector latches and 30 micron gold in the mating area per MIL G 45204 Type Il Grade C Connects to Acromag termination panel 5025 552 from the rear of the card cage via flat 50 pin ribbon cable cable Model 5025 550 X or 5025 551 X Connections to AVME9630 9660 50 pin header male connectors 3M 3433 1302 or equivalent employing long ejector latches and 30 micron gold in the mating area per MIL G 45204 Type Il Grade C Connects to AVME9630 9660 boards within the card cage via flat 50 pin ribbon cable cable Model 5025 550 X or 5025 551 X Transition module is inserted into a 6U size single width slot at the rear of the VMEbus card cage Mounting Transition module is inserted into a 6U size single width slot at the rear of the VMEbus card cage Printed Circuit Board Six layer military grade FR 4 epoxy glass circuit board 0 063 inches thick Operating Temperature 40 C to 85 C Storage Temperature 55 C to 105 C Shipping Weight 1 25 pounds 0 6Kg packed 14 G MOVd WIYLSNGNI L cdl 91995
13. static safe workstation CARD CAGE CONSIDERATIONS Refer to the specifications for loading and power requirements Be sure that the system power supplies are able to accommodate the power requirements of the carrier board plus the installed IP modules within the voltage tolerances specified IMPORTANT Adequate air circulation must be provided to prevent a temperature rise above the maximum operating temperature The dense packing of the IP modules to the carrier board restricts air flow within the card cage and is cause for concern Adequate air circulation must be provided to prevent a temperature rise above the maximum operating temperature and to prolong the life of the electronics If the installation is in an industrial environment and the board is exposed to environmental air careful consideration should be given to air filtering BOARD CONFIGURATION The board may be configured differently depending on the application Power should be removed from the board when installing IP modules cables termination panels and field wiring Refer to Mechanical Assembly Drawing 4501 434 and your IP module documentation for configuration and assembly instructions Default Hardware Configuration A board is shipped from the factory configured as follows e Analog output range is 10 to 10 Volts and is not configurable e Programmable software register bits are undefined at reset but the board defaults to 0 Volts on all analog outputs
14. upsets occur under the influence of EMI from switching solenoids commutator motors and drill motors Not required for signal I O per European Norm EN50082 1 Complies with EN61000 4 4 Level 2 0 5KV at field input and output terminals and European Norm EN50082 1 Complies with EN61000 4 2 Level 3 8KV enclosure port air discharge Level 2 4KV enclosure 12 port contact discharge Level 1 2KV I O terminals contact discharge and European Norm EN50082 1 Meets or exceeds European Norm EN50081 1 for class B equipment Shielded cable with I O connections in shielded enclosure are required to meet compliance Radiated Emissions ANALOG OUTPUTS Output Channels Field Access IP231 16 16 Single Ended IP231 8 8 Single Ended Voltage Non isolated Bipolar 10V to 10V See Notes 2 amp 3 5mA to 5mA Maximum this corresponds to a minimum load resistance of 2KQ with a 10V output See Notes 2 amp 3 Data Format left justified Bipolar Offset Binary BOB DAC Programming Immediate transparently programmed to DAC output Simultaneous input latches of multiple DAC s are loaded with new data before simultaneously updating DAC outputs 16 bits Output Output Range Output Current Monotonicity
15. Acromag S Series IP231 Industrial I O Pack 16 Bit High Density Analog Output Board USER S MANUAL ACROMAG INCORPORATED 30765 South Wixom Road P O BOX 437 Wixom MI 48393 7037 U S A Tel 248 624 1541 Fax 248 624 9234 Copyright 2004 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500 757 A04L000 SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE The information contained in this manual is subject to change without notice Acromag Inc makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Further Acromag Inc assumes no responsibility for any errors that may appear in this manual and makes no commitment to update or keep current the information contained in this manual No part of this manual may be copied or reproduced in any form without the prior written consent of Acromag Inc Table of Contents 1 0 GENERAL KEY IP231 FEATURES ini ettet INDUSTRIAL I O PACK INTERFACE FEATURES SIGNAL INTERFACE PRODUCTS T INDUSTRIAL I O PACK SOFTWARE LIBRARY INDUSTRIAL I O PACK OLE CONTROL SOFTWARE PREPARATION FOR UNPACKING AND INSPECTION CARD CAGE CONSIDERAT
16. E9670 AVME9660 9630 APC8620 21 ACPC8630 35 and ACPC8625 The software supports X86 PCI bus only and is implemented as library of C functions These functions link with existing user code to make possible simple control of all Acromag IP modules and carriers 2 0 PREPARATION FOR USE UNPACKING AND INSPECTION Upon receipt of this product inspect the shipping carton for evidence of mishandling during transit If the shipping carton is badly damaged or water stained request that the carrier s agent be present when the carton is opened If the carrier s agent is absent when the carton is opened and the contents of the carton are damaged keep the carton and packing material for the agent s inspection SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE For repairs to a product damaged in shipment refer to the Acromag Service Policy to obtain return instructions It is suggested that salvageable shipping cartons and packing material be saved for future use in the event the product must be shipped This board is physically protected with packing material and electrically protected with an anti static bag during shipment It is recommended asus Ga asa crn that the board be visually inspected for ELECTROSTATIC ELECTROMAGNETIC evidence of mishandling prior to applying power CAUTION SENSITIVE ELECTRONIC DEVICES The board utilizes static sensitive components and should only be handled at a
17. INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE P2 P1 50 50 49 49 P2 P1 48 48 To TO 47 47 AVME9630 9660 MODEL 5025 552 46 46 CARRIER BOARD 1 0 TERMINATION 45 45 P3 OR P4 P5 P6 PANEL m 44 43 43 42 42 41 4 lt x 40 40 FEET 39 39 36 5 TOP MEW 3 3 36 36 35 35 3 34 33 33 32 32 STRAN 50 PIN 31 31 RELIEF NON SHIELDED CONNECTOR 30 30 1004524 RIBBON CABLE 1004 512 29 ya gt 2002 211 28 28 27 27 ss 28 26 4S 25 25 24 QDS 24 24 LEE CGE 23 23 QDS 22 22 cu 21 21 FEDS 20 20 c i KEY LING 19 19 M 18 18 n 17 17 _O QE 16 16 EE SQ 15 15 E 14 14 Se 13 13 SSS 12 12 SSS 11 11 _ PIN 1 10 18 50 PIN f 9 9 CONNECTOR 8 8 1004 512 PIN 1 PIN TON CABLE 7 7 IS DESIGNATED WITH SIBAN EUER RED INK 1004 534 5 5 4 4 FRONT VIEW 3 3 2 2 NOTE SEVEN DIGIT PART NUMBERS ARE 1 1 ACROMAG PART NUMBERS XXXX XXX MODEL
18. IONS BOARD CONFIGURATION D Default Hardware Configuration Programmable Register Configuration Analog Output Data Format CONNECTORS IP Field I O Connector P2 Analog Output Noise and Grounding Considerations IP Logic Interface Connector 1 PROGRAMMING INFORMATION ADDRESS MAPS IP Identification PROM s DAC Channel Registers Transparent Mode Simultaneous Mode Simultaneous Output Trigger Channel Offset Gain Error Coefficients ve IP231 PROGRAMMING CONSIDERATIONS Using the Transparent Using the Simultaneous Mode USE OF CALIBRATION DATA Uncalibrated Performance s Calibrated THEORY OF ANALOG OUTPUTS LOGIC POWER INTERFACE SERVICE AND REPAIHR x SERVICE AND REPAIR ASSISTANCE PRELIMINARY SERVICE PROCEDURE GENERAL SPECIFICATIONS ANALOG 0 IND
19. Not Used addresses will be driven low 2 Channels 8 15 are present in the IP231 16 Model only The following sections give details on the function of each location in the I O space noted above IP Identification Read Only 32 odd byte addresses Each IP module contains an identification ID that resides in the ID space per the IP module specification This area of memory contains 32 bytes of information at most Both fixed and variable information may be present within the ID Fixed information includes the IPAC identifier model number and manufacturer s identification codes Variable information includes unique information required for the module The IP231 ID bytes are addressed using only the odd addresses in a 64 byte block The IP231 ID contents are shown in Table 3 2 Note that the base address for the IP module ID space see your carrier board instructions must be added to the addresses shown to properly access the ID Execution of an ID Read requires 0 wait states Table 3 2 IP231 ID Space Identification ID Hex Offset From ID PROM Base Address ASCII Character Equivalent Numeric Field Description All IP s have IPAC Acromag ID Code 33 IP231 8 Code Not Used Revision Not Used Driver ID Low Byte Not Used Driver ID Total Number of ID PROM OB IP231 16 1 231 8 Not Used SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE DAC Channel Registers
20. O VOLTAGE DROPS ACROSS THE LEAD RESISTANCE OF THE WIRE IT IS RECOMMENDED THAT A HIGH RESISTANCE LOAD WITH A SHORT WIRE RUN BE CONNECTED AT THE OUTPUT TO REDUCE THE EFFECTS OF LEAD AND SOURCE RESISTANCE VOLTAGE DROPS IN THE WIRE M2 x 6 FLAT HEAD SCREW THREADED M2 gt SPACER pute SIDE OF IP MODULE 4502 002A COMPONENT SIDE OF CARRIER BOARD 1 L r 1 L r P 2 PANEL CONNECTOR P MODUL HEAD SCREW ASSEMBLY PROCEDURE 1 JO THREADED SPACERS ARE PROVIDED IN TWO DIFFERENT LENGTHS THE SHORTER LENGTH IS FOR USE WITH AVME 9630 9660 CARRIER BOARDS SHOWN CHECK YOUR CARRIER BOARD TO DETERMINE ITS REQUIREMENTS MOUNTING HARDWARE PROVIDED MAY NOT BE COMPATIBLE WITH ALL TYPES OF CARRIER BOARDS INSERT FLAT HEAD SCREWS ITEM A THROUGH SOLDER SIDE OF IP MODULE AND INTO HEX SPACERS ITEM B AND TIGHTEN 4 PLACES UNTIL HEX SPACER IS COMPLETELY SEATED CAREFULLY ALIGN IP MODULE TO CARRIER BOARD AND PRESS TOGETHER UNTIL CONNECTORS AND SPACERS ARE SEATED INSERT PAN HEAD SCREWS ITEM C THROUGH SOLDER SIDE OF CARRIER BOARD AND INTO HEX SPACERS ITEM B AND TIGHTEN 4 PLACES TO CARRI 4501 434 B ER BOARD M ECHANICAL ASS P1 CONNECTOR EM BLY 16 SERIES IP231
21. USTRIAL I O PACK APPENDIX u oie ie de tede tee tes CABLE MODEL 5025 550 CABLE MODEL 5025 551 TERMINATION PANEL MODEL 5025 552 TRANSITION MODULE MODEL TRANS GP 2 0 3 0 4 0 5 0 6 0 DRAWINGS Page 4502 001 IP231 BLOCK 15 4502 002 ANALOG OUTPUT CONNECTIONS 16 4501 434 IP MECHANICAL ASSEMBLY 16 4501 462 CABLE 5025 550 NON SHIELDED 17 4501 463 CABLE 5025 551 SHIELDED is 17 4501 464 TERMINATION PANEL 5025 552 18 4501 465 TRANSITION MODULE TRANS GP 18 IMPORTANT SAFETY CONSIDERATIONS It is very important for the user to consider the possible adverse effects of power wiring component sensor or software failures in designing any type of control or monitoring system This is especially important where economic property loss or human life is involved It is important that the user employ satisfactory overall System design It is agreed between the Buyer and Acromag that this is the Buyer s responsibility 1 0 GENERAL INFORMATION The Industrial I O Pack IP Series IP231 module is a 16 bit high density single size IP analog output board with the capability to drive up to 16 analog voltage output
22. Win32 DRIVER SOFTWARE Acromag provides a software product sold separately to facilitate the development of Windows 98 Me 2000 XP 6 applications accessing Industry Pack modules installed on Acromag PCI Carrier Cards and CompactPCI Carrier Cards This software Model IPSW API WIN consists of low level drivers and Windows 32 Dynamic Link Libraries DLLS that are compatible with a number of programming environments including Visual C Visual Basic Borland C Builder and others The DLL functions provide a high level interface to the carriers and IP modules eliminating the need to perform low level reads writes of registers and the writing of interrupt handlers IP MODULE VxWORKS SOFTWARE Acromag provides a software product sold separately consisting of IP module VxWorks libraries This software Model IPSW API VXW is composed of VxWorks real time operating System libraries for all Acromag IP modules and carriers including the AVME9670 AVME9660 9630 APC8620 21 ACPC8630 35 and ACPC8625 The software is implemented as a library of C functions These functions link with existing user code to make possible simple control of all Acromag IP modules and carriers IP MODULE QNX SOFTWARE Acromag provides a software product sold separately consisting of board QNX software This software Model IPSW API QNX is composed of QNX real time operating system libraries for all Acromag IP modules and carriers including the AVM
23. age Ideal_Zero_Count 1 where SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE Count Span 65 536 a 16 bit converter has 2 possible levels Ideal_Volt_Span 20 Volts for the bipolar 10 to 10 Volt range Ideal_Zero_Count 32 768 count for an ideal output of 0 Volts Equation 1 can be simplified using the above constants since the range and DAC are fixed on the IP231 Equation 2 results Ideal_Count 65 536 20 Desired_Voltage 32 768 2 Using equation 2 one can determine the ideal count for any desired voltage within the range For example if it is desired to output a voltage of 5 Volts equation 2 returns the result 49 152 for Ideal Count If this value is used to program the DAC output following conversion to Hex the output value will approach 5 Volts to within the uncalibrated error specified in Table 3 3 This will be acceptable for some applications For applications needing better accuracy the software calibration coefficients should be used to correct the Ideal Count into the Corrected Count required to accurately produce the output voltage This is illustrated in equation 3 Corrected Count Ideal Gain Gain Correction Ideal Count Ideal Zero Count Ideal Zero Count Offset Correction 3 where Ideal Gain z 1 Gain Correction PROM Gain Error 262 144 Offset Correction PROM Offset Error 4 Ideal Count is determined from equation
24. and the Simultaneous Channel Update Mode see Section 3 Programmable Register Configuration Programmable registers are software configurable That is there are no hardware jumpers associated with them Registers must be accessed to select the desired mode of operation and to update analog outputs refer to Section 3 for details Analog Output Data Format The bipolar output range 10 to 10 Volts is programmed with Bipolar Offset Binary BOB data to the Digital to Analog Converter DAC The following table indicates the relationship between the data format and the ideal analog output voltage from the module Table 2 2 Bipolar Offset Binary BOB Output Data Format Volts Hex 0 000305 8001 0 000000 8000 0 000305 7FFF 9 99969 0001 10 00000 0000 CONNECTORS IP Field I O Connector P2 P2 provides the field I O interface connector for mating IP modules to the carrier board P2 is a 50 pin receptacle female header Comm Con 8066 50G2 or equivalent which mates to the male connector of the carrier board AMP 173280 3 or equivalent This provides excellent connection integrity Table 2 3 IP231 Field I O Pin Connections P2 Pin Description Number Pin Description Number 6 cHO 8 CHOA 9 Note 1 The minus leads of all channels are connected to analog common on the module 2 The 12 volt analog power supplies are provided via the P1 connector by default External powe
25. channels The IP231 utilizes state of the art Surface Mounted Technology SMT to achieve its high channel density and is an ideal choice for many industrial control and scientific applications that require high density high reliability and high performance at a low cost MODEL OUTPUTS OPERATING TEMPERATURE RANGE IP231 16 0 to 70 C IP231 8 8 0 70 IP231 16E 40 to 85 C IP231 8E 8 40to85 C KEY IP231 FEATURES e High Channel Count Individual control of up to 16 analog voltage output channels is provided Four units mounted on a carrier board provide up to 64 output channels in a single system slot e 16 Bit Accuracy Each channel contains its own 16 bit Digital to Analog Converter DAC with an 13uS output settling time Bipolar Outputs Provides bipolar voltage range outputs 10 to 10 Volts e Reliable Software Calibration Calibration coefficients stored on board provide the means for accurate software calibration of the module e Individual Output Control Output channels can be individually selected and updated with a single channel data write command when using the transparent output mode e Simultaneous Output Control All output channels can be simultaneously updated with a single software trigger command when using the simultaneous output mode DAC s are double buffered which allows new data to be written to each channel before the simultaneous trigger updates the outputs e Eas
26. e made through the carrier board which passes them to the individual IP modules Cables Model 5025 551 X Shielded Cable or Model 5025 550 X Non Shielded Cable A Flat 50 pin cable with female connectors at both ends for connecting AVME9630 9660 or other compatible carrier boards to Model 5025 552 termination panels The unshielded cable is recommended for digital I O while the shielded cable is recommended for optimum performance with this module and for precision analog I O applications Termination Panel Model 5025 552 DIN rail mountable panel provides 50 screw terminals for universal field I O termination Connects to Acromag AVME9630 9660 or other compatible carrier boards via flat 50 pin ribbon cable Model 5025 550 X or 5025 551 X Transition Module Model TRANS GP This module repeats field I O connections of IP modules A through D for rear exit from the card cage It is available for use in card cages which provide rear exit for I O connections via transition modules transition modules can only be used in card cages specifically designed for them It is a double height 6U single slot module with front panel hardware adhering to the VMEbus mechanical dimensions except for shorter printed circuit board depth Connects to Acromag Termination Panel 5025 552 from the rear of the card cage and to AVME9630 9660 boards within the card cage via flat 50 pin ribbon cable cable Model 5025 550 X or 5025 551 X IP MODULE
27. er RESET CONDITION Defaults to Simultaneous Mode All register bits are undefined All analog output channels are set to 0 Volts Note The reset function resets only the DAC output latch of the input double buffer Therefore after a reset good data must be written to all the input latches before enabling the Transparent Mode or enabling the Simultaneous Output Trigger for a DAC output update Otherwise old data or unknown data present in the input latches will be transferred to the DAC output latch producing an undesired analog output The Simultaneous Mode can also be activated while in Transparent Mode if a write occurs to the Simultaneous Output Trigger register Simultaneous Output Trigger Write Base 24H The Simultaneous Output Trigger is a write only register will not respond to reads in the I O space that produces the pulse needed to trigger the simultaneous type of data transfer The Simultaneous Output Trigger register works in conjunction with the Simultaneous Mode register to simultaneously transfer all the channels digital data from the DAC input latch to the output latch and update the analog output at a specific time The Simultaneous Mode register must be written to first Then writing to the Simultaneous Output Trigger register creates the trigger for digital data to be converted and transferred to the board s field connector The 16 bit digital data written to the address specific channel s input la
28. for Type I Modules Single Size IP Module 16 bit word write read of 16 bit channel data 16 bit write read to control registers 8 bit read of 16 bit offset and gain calibration coefficients 16 and 8 bit Supports Type 1 32 bytes per IP consecutive odd byte addresses 0 wait states 250ns cycle 2 wait state 500ns cycle 1 wait state 375ns cycle 1 wait state 375ns cycle 6 New read or write of the same DAC Channel register can be performed no sooner then 2us after a DAC write command is executed A DAC channel write after issue of a simultaneous trigger command will see additional wait states until the simultaneous trigger is executed at the DACs 13 SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE APPENDIX CABLE MODEL 5025 550 x Non Shielded MODEL 5025 551 x Shielded Type Flat Ribbon Cable 50 wires female connectors at both ends The x suffix designates the length in feet 12 feet maximum Choose shielded or unshielded cable according to model number The unshielded cable is recommended for digital I O while the shielded cable is recommended for optimum performance with precision analog I O applications Application Used to connect Model 5025 552 termination panel to the AVME9630 9660 non intelligent carrier board A D connectors Both have 50 pin connectors Length Last field of part number designates length in feet user specified 12 feet maximum I
29. gital data then all channels are pulsed simultaneously and synchronously to convert to the updated analog output voltage Simultaneous Mode Programming Example 1 Write to the Simultaneous Mode register to setup the simultaneous type of data transfer 2 Read the EEPROM to acquire the channel s unique offset and gain calibration coefficient data This data is necessary to adjust by software the accuracy of the involved channel s analog output See USE OF CALIBRATION DATA 3 Write the 16 bit digital data to the desired DAC Channel Register 4 Repeat steps 2 3 to write new digital data to the DAC Channel Registers for all other channels requiring update 5 Write to the Simultaneous Output Trigger register to produce a pulse to simultaneously trigger digital to analog conversions for all channels resulting in updated analog output voltages at the field connector 6 OPTIONAL Observe or monitor that DAC channels reflect the results of the digital data converted to an analog output voltage at the field connector 7 Repeat steps 2 6 for continued simultaneous and synchronous triggered updates of all desired channels USE OF CALIBRATION DATA Calibration data is provided in the form of calibration coefficients so the user can adjust and improve the accuracy of the analog output voltage over the uncalibrated state Each channel s unique offset and gain calibration coefficients are stored in the EEPROM The use of software calibratio
30. grammed for maximum speed and accuracy and avoids the problems associated with designs using sample and hold amplifiers multiplexed to a single DAC Each DAC may source up to 5mA of output current without requiring separate buffer amplifiers DAC calibration is done via software to avoid the mechanical drawbacks of hardware potentiometers for each DAC channel This also conserves board space and helps to achieve high channel density Calibration parameters are stored in EEPROM on a per channel basis DAC inputs are double buffered This allows channels to be programmed by either of two modes software register selectable The Transparent Mode allows channels to be updated quickly on an individual basis since data written to the input latch is immediately transferred to the output latch and converted to an updated analog output voltage Selection of the Simultaneous Mode allows many or all channels to be updated at once In this mode the data for channels is written to their associated input latch but does not get transferred to the output latch until a Simultaneous Trigger command is sent All channels update synchronously and simultaneously upon receipt of the trigger command LOGIC POWER INTERFACE The logic interface to the carrier board is made through connector P1 refer to Table 2 4 Not all of the IP logic P1 pin functions are used The logic P1 interface provides 12 volt and 5V supplies to the module If required there is an opt
31. he I O space The I O space address map for the IP231 is shown in Table 3 1 below Note the base addresses for the IP module I O space see your carrier board instructions must be added to the addresses shown to properly access the I O space This manual is presented using the Big Endian byte ordering format Big Endian is the convention used in the Motorola 68000 microprocessor family and is the VMEbus convention In Big Endian the lower order byte is stored at odd byte addresses Thus byte accesses are done on odd address locations The Intel x86 family of microprocessors use the opposite convention or Little Endian byte ordering Little Endian uses even byte addresses to store the low order byte As such use of this module on a PC carrier board will require the use of the even address locations to access the data while a VMEbus carrier will require the use of odd address locations SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE ADDRESS MAPS Table 3 1 IP231 1 0 Space Address Memory Map Base Even Byte Odd Byte Address D15 D08 D07 D00 Hex O R W DAC Channel 0 RW DAC Channel 1 0A __ Control Register NOT USED 44 4A 54 24 06 O OA 24 2C 4 3E 44 54 6 6 68 Notes Table 3 1 1 The IP will respond to addresses that are Not Used with an active IP module acknowledge ACK Data read at
32. herefore after a reset good data must be written to all the input latches before a DAC output update by enabling the Transparent Mode or enabling the Simultaneous Output Trigger Otherwise old data or unknown data present in the input latches will be transferred to the DAC output latch producing an undesired analog output Execution of a DAC channel write or read command requires one wait state Transparent Mode Write Base 20H The Transparent Mode is a write only register the I O space that is used to select and enable the transparent type of data transfer it will not respond to reads Once the Transparent Mode is selected 16 bit digital data written to the address specific channel s input latch will automatically be converted and transferred to the board s field connector The data is transferred from the input latch through the DAC latch transparent in this mode to the analog output field connector until a reset Simultaneous Mode or Simultaneous Output Trigger is enabled Execution of a Transparent Mode write command requires 1 wait state The data written to this location D16 is immaterial since the write is sufficient to complete the action D15 D00 X means DON T CARE the bit value does not matter RESET CONDITION Defaults to Simultaneous Mode All register bits are undefined All analog output channels are set to 0 Volts Note The reset function resets only the DAC output latch of the
33. input double buffer Therefore after a reset good data must be written to all the input latches before enabling the Transparent Mode or enabling the Simultaneous Output Trigger for a DAC output update Otherwise old or unknown data present in the input latches will be transferred to the DAC output latch producing an undesired analog output In the Transparent Mode the Simultaneous Mode can be activated by a write to the Simultaneous Output Trigger register Simultaneous Mode Write Base 22H The Simultaneous Mode is a write only register will not respond to reads in the I O space that is used to select the simultaneous type of data transfer Once the Simultaneous Mode is selected 16 bit digital data written to the address specific channel s input latch will continue to be held until the Simultaneous Output Trigger register is written before digital data is transferred to the output latch and the updated analog output appears at the board s field connector The data of all the channels is simultaneously transferred once per simultaneous trigger from the DAC input latch to the output latch and analog output updated only when the Simultaneous Output Trigger register is enabled Execution of a Simultaneous Mode Write command requires 1 wait state The data written to this location D16 is immaterial since the write is sufficient to complete the action D15 D00 X means Don t Care the bit value does not matt
34. ion panel 1 50 correspond to P2 pins 1 50 on the Industrial I O Pack IP Each Industrial I O Pack IP has its own unique P2 pin assignments Refer to the IP module manual for correct wiring connections to the termination panel Schematic and Physical Attributes See Drawing 4501 464 Field Wiring 50 position terminal blocks with screw clamps Wire range 12 to 26 AWG Connections to AVME9630 9660 P1 50 pin male header with strain relief ejectors Use Acromag 5025 550 x or 5025 551 x cable to connect panel to VME board Keep cable as short as possible to reduce noise and power loss Mounting Termination panel is snapped on the DIN mounting rail Printed Circuit Board Military grade FR 4 epoxy glass circuit board 0 063 inches thick Operating Temperature 40 C to 100 C Storage Temperature 40 C to 100 C Shipping Weight 1 25 pounds 0 6kg packed TRANSITION MODULE MODEL TRANS GP Type Transition module for AVME9630 9660 boards Application To repeat field I O signals of IP modules A through D for rear exit from VME card cages This module is available for use in card cages which provide rear exit for I O connections via transition modules transition modules can only be used in card cages specifically designed for them It is a double height 6U single slot module with front panel hardware adhering to the VMEbus mechanical dimensions except for shorter printed circuit board depth Connects to Acromag termination
35. ion to provided 12 volt external supplies The 12 volt analog power supplies are provided via the P1 connector by default External power supply pins 47 and 49 can only be used if the IP231 is built at the factory for external analog power A programmable logic device installed on the IP Module provides the control signals required to operate the board It decodes the selected addresses in the I O and ID spaces and produces the chip selects control signals and timing required by the DAC s software registers and ID information as well as the acknowledgement signal required by the carrier board per the IP specification It also controls the mode selection and triggering to start DAC conversions for the Transparent and Simultaneous Modes 11 The EEPROM installed on the IP module contains channel specific calibration coefficients to correct both offset and gain errors The coefficients must be used to trim the outputs to within their accuracy specification The EEPROM software registers and DAC s are all accessed through the 16 bit data bus interface to the carrier board 5 0 SERVICE AND REPAIR SERVICE AND REPAIR ASSISTANCE Surface Mounted Technology SMT boards are generally difficult to repair It is highly recommended that a non functioning board be returned to Acromag for repair The board can be damaged unless special SMT repair and service tools are used Further Acromag has automated test equipment that thoroughly chec
36. ks the performance of each board When a board is first produced and when any repair is made it is tested placed in a burn in room at elevated temperature and retested before shipment Please refer to Acromag s Service Policy Bulletin or contact Acromag for complete details on how to obtain parts and repair PRELIMINARY SERVICE PROCEDURE Before beginning repair be sure that all of the procedures in Section 2 Preparation For Use have been followed Also refer to the documentation of your carrier board to verify that it is correctly configured Replacement of the module with one that is known to work correctly is a good technique to isolate a faulty module CAUTION POWER MUST BE TURNED OFF BEFORE REMOVING OR INSERTING BOARDS Acromag s Applications Engineers can provide further technical assistance if required When needed complete repair services are also available from Acromag SERIES IP231 INDUSTR IAL PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE 6 0 SPECIFICATIONS PHISICAL Physical Configuration Lenglh Board Thickness Max Component Height Connectors P1 IP Logic Interface P2 Field Power 5 Volts 5 12 Volts 5 from P1 12 Volts 5 from P1 Notes Single Industrial Pack Module 3 880 in 98 5 mm 1 780 in 45 2 mm 0 062 in 1 59 mm
37. mple 1 Write to the Transparent Mode register to setup the transparent type of data transfer 2 Read the EEPROM to acquire the channel s unique offset and gain calibration coefficient data This data is necessary to SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE adjust by software the accuracy of the involved channel s analog output See USE OF CALIBRATION DATA 3 Write the 16 bit digital data to the desired DAC Channel Register 4 OPTIONAL Observe or monitor that the specific DAC channel reflects the results of the digital data converted to an analog output voltage at the field connector 5 Repeat steps 1 4 until all the desired channels reflect the updated analog output voltage at the field connector Using the Simultaneous Mode Use of the Simultaneous Mode provides a method of distributing data simultaneously and synchronously to produce desired analog outputs This method is useful for applications that require updating all the channels simultaneously and synchronously Each channel is written to with the required 16 bit data When all the required channels contain the desired digital data then a write to the Simultaneous Output Trigger register will produce a pulse to simultaneously trigger each channel s digital to analog converter Thus all the analog outputs are updated simultaneously Functionally each input latch is written to separately When all input latches contain the desired di
38. n allows the elimination of hardware calibration potentiometers traditionally used in producing precision analog outputs A comparison of the uncalibrated and software calibrated performance is shown to illustrate the importance of the software calibration Software calibration uses some fairly complex equations Acromag provides software products sold separately to make communication with the board and calibration easy It relieves you from having to turn the equations of the following sections into debugged software calibration code Uncalibrated Performance The uncalibrated performance is affected by two primary error sources These are the channel s offset and gain errors The use of channel specific calibration coefficients to accurately adjust offset and gain is important because the worst case uncalibrated error can be significant although the typical uncalibrated errors observed may be much less The maximum uncalibrated error is summarized as follows AD5570 25 C Linearity Error is 0 003 maximum i e 2 LSB Bipolar Offset Error is 0 038 FSR i e 20V SPAN maximum Gain Error is 0 038 FSR maximum Table 3 3 summarizes the maximum uncalibrated error combining the linearity offset and gain errors Table 3 3 Maximum Overall Uncalibrated Error Error Error Error Error 51 8 LSB 0 079 0 003 0 038 0 038 This represents the worst case error with all errors summed
39. n be performed no sooner then 2us after the previous DAC write command is executed The status of 16 DAC channels numbered 0 through 15 may be monitored via this register Data bits O to 15 reflect the status of DAC channels 0 to 15 The channels corresponding status bit will be set low upon initiation of a write operation and will remain low until the requested write operation has completed New write accesses to the DAC Channel register should not be initiated unless its write busy status bit is set high Control Register Read Write Base 28H This register is used to issue a software reset to the IP231 Setting bit 7 of this register to a logic high 1 will reset all analog output channels to O Volts Note The reset function resets only the DAC output latch of the input double buffer Therefore after a reset good data must be written to all the input latches before enabling the Transparent Mode or enabling the Simultaneous Output Trigger for a DAC output update Otherwise old data or unknown data present in the input latches will be transferred to the DAC output latch producing an undesired analog output This register is cleared set to 0 following a reset Reading or writing this register is possible via 16 bit or 8 bit data transfers EEPROM Write Control Register Read Write Base 2AH Writes to the coefficient memory device require a special enable code Writes to memory are normally only performed at the facto
40. nel Register will be automatically transferred 10 from input latch to the output latch converted to desired output 2 Read the EEPROM to retrieve the channel s unique offset calibration error data For channel 0 read byte BASE 41H Also read the most significant byte at BASE 40H This 16 bit two s compliment number is assumed 20H This corresponds to a PROM_Offset_Error of 32 decimal 3 Read the EEPROM to retrieve the channel s unique gain calibration error data For channel 0 read byte BASE 43H Also read the most significant byte BASE 42H An 16 bit two s compliment number is assumed FFF1H This corresponds to a PROM_Gain_Error of 15 decimal 4 Calculate the Ideal Count required to provide an uncorrected output of the desired value 2 5 Volts by using equation 2 Ideal_Count 65536 20 2 5 32 768 24 576 5 Calculate the Corrected Count required to provide an accurate output of the desired value 2 5 Volts by using equation 4 Corrected Count 1 15 262 144 24 576 32 768 32 768 32 4 24 584 47 6 Write to the DAC Channel 0 Register BASE 00H with the desired data 6009H data is determined by rounding 24 584 47 decimal to 24 585 then converting to Hex 6009 7 OPTIONAL Observe or monitor that the specific DAC channel 0 reflects the results of the digital data converted to an analog output voltage at the field connector 8 Repeat steps
41. ng the last 64 bytes 40H to 7FH of the I O space D08 accesses only The offset and gain calibration coefficients read from the EEPROM are stored with 1 4 LSB resolution Thus it is necessary to divide each coefficient by four to correctly use them when calibrating the bipolar outputs Each is stored as a two s complement i e signed sixteen bit number This number has a range of 32 768 to 32 767 Execution of a Channel Offset or Gain Error Read command requires 1 wait state EVEN BYTE ODD BYTE MSB L 15 14 13 12 11 10 9 876543210 lt DATA gt PROGRAMMING CONSIDERATIONS FOR ANALOG OUTPUTS The IP231 provides two methods of analog output programming for maximum flexibility with different applications The following paragraphs describe the features of each and how to best use them Using the Transparent Mode Use of the Transparent Mode provides the quickest method of updating the desired analog output This method is geared for those applications that require maximum speed without the need for updating all channels simultaneously In Transparent Mode each analog output channel is updated as soon as it is written to Multiple channels may be written to separately resulting in the analog outputs being updated one channel at a time Functionally the input latch is written to and the DAC latch is automatically updated providing more speed by eliminating a separate write instruction Transparent Mode Programming Exa
42. nge endpoints due to hardware offset and gain errors The software calibration SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE corrects for these across the output range but cannot extend the output beyond that achievable with the hardware Offset and gain calibration coefficients stored in the EEPROM must be used to perform software calibration in order to achieve the specified accuracy Specified accuracy does not include quantization error Follow the output connection recommendations of Section 2 because non ideal grounds can degrade overall system accuracy The reset function resets only the DAC i e output latch of the input double buffer Therefore after a reset good data must be written to all the input latches before a simultaneous DAC output update Otherwise old data or unknown data present in the input latches will be transferred to the DAC output latch producing an undesired analog output INDUSTRIAL I O PACK COMPLIANCE Electrical Mechanical Interface once I O Space IOSel ID Space IDSel Access Times 8MHz Clock ID EEPROM Read DAC Channel Data Write DAC Offset Gain Coeff Read Control Register Access Notes This device meets or exceeds all written Industrial Pack specifications per ANSI VITA 4 1995 for 8MHz operation
43. over Temperature Linearity Differential Linearity Error System 16 bits 2 LSB Maximum 1 LSB Maximum 0 00305 of 20V SPAN Maximum corrected error i e calibrated at 259C See Note 4 with the output unloaded Settling Time 13 5 to within 0 012 for a 20V step change load of 5KQ in parallel with 470 pf Output at Reset Bipolar Zero Volts See Note 5 Output Noise 2 0mV rms in a 20MHz bandwidth Typical 0 50 Maximum at 25 C a load of 10KQ will introduce 0 005 output error Short Circuit Current 25mA Output Load Stability Maximum recommended capacitive load is 500pf Capacitive loads above 500pf can be tolerated but with additional Output Impedence overshoot Gain Drift nennen innin 15ppm of 20V SPAN per oc Maximum Bipolar Zero Drift 10ppm of 20V SPAN per oc Maximum Notes Analog Outputs 2 Maximum output current 5mA can be achieved at the range endpoints using the internal 12 volt power supplies sourced through P1 The internal supplies must not drop below 12 volts to achieve maximum output current of 5mA A maximum output current of 2mA is recommended for supplies at 11 4 volts 3 The actual outputs may fall short of the ra
44. r supply pins 47 and 49 can only be used if the IP231 is built at the factory for external analog power SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE Threaded metric M2 screws and spacers are supplied with the module to provide additional stability for harsh environments see Mechanical Assembly Drawing 4501 434 The field and logic side connectors are keyed to avoid incorrect assembly P2 Pin assignments are unique to each IP see Table 2 3 and normally correspond to the pin numbers of the front panel field I O interface connector on the carrier board you should verify this for your carrier board In Table 2 3 channel designations are abbreviated to save space i e channel 0 is abbreviated as CH00 amp CH00 for the amp connections respectively Further note the output signals all have the same ground reference CH00 and the minus leads of all other channels are connected to analog common on the module Analog Output Noise and Grounding Considerations All output channels are referenced to analog common on the module See Drawing 4502 002 for analog output connections but each channel has a separate return minus lead to maintain accuracy and reduce noise Still the accuracy of the voltage output depends on the amount of current loading impedance of the load and the length impedance of the cabling High impedance loads e g loads gt 100KQ provide the best accuracy
45. ry The module should be returned to Acromag if the coefficients must be re measured and stored to memory Write operations to coefficient memory are enable by setting bits 0 and 1 to logic high Write operations to the coefficient memory at base address plus 40H to 7FH will take approximately 1m seconds Bit 15 of the EEPROM Status register serves as write operation busy status indicator Status bit 15 will be set low upon initiation of a write operation and will remain low until the requested write operation has completed New write accesses to the coefficient memory should not be initiated unless the write busy status bit 15 is set high EEPROM Status Register Read Base 2BH This register is used to monitor the busy status after a write to the coefficient memory device The DAC coefficients are measured and written at the factory Reading bit 15 of this register can be used to detect the end of a coefficient memory write cycle Bit 15 is actively pulled low 0 during the write cycle and is released to logic high 1 at completion of the write Channel Offset Gain Error Coeff Read Base 41 to 7FH Calibration data is provided in the form of calibration coefficients so the user can adjust and improve the accuracy of the analog output voltage over the uncalibrated state Each channel s unique offset and gain calibration coefficients are stored in a EEPROM These coefficients can be retrieved read only by accessi
46. t is recommended that this length be kept to a minimum to reduce noise and power loss Cable 50 wire flat ribbon cable 28 gage Non Shielded cable model uses Acromag Part 2002 211 3M Type C3365 50 or equivalent Shielded cable model uses Acromag Part 2002 261 3M Type 3476 50 or equivalent Headers Both Ends 50 pin female header with strain relief Header Acromag Part 1004 512 3M Type 3425 6600 or equivalent Strain Relief Acromag Part 1004 534 3M Type 3448 3050 or equivalent Keying Headers at both ends have polarizing key to prevent improper installation Schematic and Physical Attributes For Non Shielded cable model see Drawing 4501 462 For Shielded cable model see Drawing 4501 463 Shipping Weight 1 0 pound 0 5Kg packed TERMINATION PANEL MODEL 5025 552 Type Termination Panel For AVME9630 9660 Boards Application To connect field I O signals to the Industrial I O Pack IP Termination Panel Acromag Part 4001 040 Phoenix Contact Type FLKM 50 The 5025 552 termination panel facilitates the connection of up to 50 field I O signals and connects to the AVME9630 9660 3U 6U non intelligent carrier boards A D connectors only via a flat ribbon cable Model 5025 550 x or 5025 551 x The A D connectors on the carrier board connect the field I O signals to the P2 connector on each of the Industrial Pack modules Field signals are accessed via screw terminal strips The terminal strip markings on the terminat
47. tch will continue to be held until the Simultaneous Output Trigger register is written This will trigger the transfer of digital data from the DAC input latch to the output latch and the digital to analog conversion producing the updated analog output Execution of a Simultaneous Output Trigger Write command requires 1 wait state The data written to this SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE location D16 is immaterial since the write is sufficient to complete the action D15 D00 X means Don t Care the bit value does not matter RESET CONDITION Defaults to Simultaneous Mode All register bits are undefined All analog output channels are set to 0 Volts Note The reset function resets only the DAC output latch of the input double buffer Therefore after a reset good data must be written to all the input latches before enabling the Transparent Mode or enabling the Simultaneous Output Trigger for a DAC output update Otherwise old data or unknown data present in the input latches will be transferred to the DAC output latch producing an undesired analog output The Simultaneous Mode can also be activated while in Transparent Mode if a write occurs to the Simultaneous Output Trigger register DAC Write Status Register Read Base 26H This DAC Write Status register can be read to monitor the busy status after a write to a DAC channel New write of a DAC Channel register ca
48. y Mode Selection Selection of transparent and simultaneous output modes is easily done via software commands SERIES IP231 INDUSTRIAL I O PACK 16 BIT HIGH DENSITY ANALOG OUTPUT MODULE e Reset is Failsafe Outputs reset to 0 volts following a power up or reset INDUSTRIAL I O PACK INTERFACE FEATURES e High density Single size industry standard IP module footprint Up to five units may be mounted on a carrier board LocallD Each IP module has its own 8 bit ID PROM which is accessed via data transfers in the ID Read space e 16 bitl O Control register writes DAC writes and calibration coefficient reads are performed through 16 bit data transfer cycles in the IP module Input Output space e High Speed This IP model performs one wait state DAC write cycles Hold State Support This IP module supports Hold states if generated by the carrier board SIGNAL INTERFACE PRODUCTS See Appendix for more information on compatible products This IP module will mate directly to any industry standard IP carrier board including Acromag s AVME9630 60 70 75 VMEbus APC8620 21 PCI bus and ACPC8625 30 35 Compact PCI bus non intelligent carrier boards A wide range of other Acromag IP modules are also available to serve your signal conditioning and interface needs Consult the documentation of your carrier board to ensure compatibility with the following interface products since all connections to field signals ar
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