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Appendix

 

 B

Publication 17946.5.2 - May 1996

Differences Between Series A

and Series B Analog Modules

The following lists major differences between series A and series B
analog modules.

Catalog Number

Description

Series A

Series B

1794IE8,

1794OE4,

1794IE4XOE2

Power Up bit in Read Word

None

This bit is set when all bits in the

configuration register are 0 (unconfigured

state).

Change to range selection

tables

No off position available. Module

produces either 2V or 4mA, dependent

upon the range selected, until module is

configured.

Off position now produces 0V or 0mA,

dependent upon range selected, until

module is configured.

Specifications
1794OE4

Output Current Terminal

4mA output until module is configured

420mA user configurable

020mA user configurable

0mA output until module is configured

420mA user configurable

020mA user configurable

Output Voltage Terminal

2V output until module is configured 

±

10V user configurable

0-10V user configurable

0V output until module is configured 

±

10V user configurable

0-10V user configurable

1794IE4XOE2

Output Current Terminal

4mA output until module is configured

420mA user configurable

020mA user configurable

0mA output until module is configured

420mA user configurable

020mA user configurable

Output Voltage Terminal

2V output until module is configured

±

10V user configurable

0-10V user configurable

0V output until module is configured

±

10V user configurable

0-10V user configurable

1794IE8,

1794OE4,

1794IE4XOE2

Agency Certification

(when product or packaging is

marked)

•

CSA certified

•

CSA Class I, Division 2, Groups A, B,

C, D certified

•

UL listed

•

CSA certified

•

CSA Class I, Division 2, Groups A, B,

C, D certified

•

UL listed

•

CE marked for all applicable directives

Содержание 1794-IE4XOE2 Series B

Страница 1: ...User Manual Allen Bradley FLEX I O Analog Modules Cat No 1794 IE8 OE4 and IE4XOE2 Series B...

Страница 2: ...ate Control available from your local Allen Bradley office describes some important differences between solid state equipment and electromechanical devices which should be taken into consideration whe...

Страница 3: ...ut analog module 1794 IE4XOE2 series B 4 in 2 out combo analog module The differences between series A and series B are explained in Appendix B I O Mapping I O mapping for the series B versions of the...

Страница 4: ...og Modules Communicate with Programmable Controllers 1 2 Features of your Analog Modules 1 4 Chapter Summary 1 4 How to Install Your Analog Module 2 1 Chapter Objectives 2 1 Before You Install Your An...

Страница 5: ...er Summary 3 6 Writing Configuration to and Reading Status from Your Module with a Remote I O Adapter 4 1 Chapter Objectives 4 1 Configuring Your Analog Module 4 1 Range Selection 4 2 Safe State Value...

Страница 6: ...1 Adapter Input Status Word 5 2 Mapping Data into the Image Table 5 3 8 Input Analog Module Cat No 1794 IE8 Series B Image Table Mapping 5 3 Analog Input Module 1794 IE8 B Read 5 3 Analog Input Module...

Страница 7: ...es A and Series B Analog Modules B 1 Data Table Formats C 1 Two s Complement Binary C 1 Analog Data Format C 2 Scaling Example C 3 Support Services C 1 Technical Support C 1 Engineering and Field Serv...

Страница 8: ...title and a brief overview of the topics covered in that chapter Chapter Title Contents 1 Overview of FLEX I O and Analog modules Describes FLEX I O Analog modules features and how they function 2 How...

Страница 9: ...e 3 wire Terminal Base 1794 5 2 1794 TBN Terminal Base Unit 1794 5 16 1794 TBNF Fused Terminal Base Unit 1794 5 17 1794 TB3T Temperature Terminal Base Unit 1794 5 41 1794 IB16 24V dc 16 Input Module 1...

Страница 10: ...stem for distributed applications that performs all of the functions of rack based I O The FLEX I O system contains the following components shown below Adapter Terminal Base I O Module 20125 I V I V...

Страница 11: ...odule s memory to a designated area in the processor data table and output data words from a designated area in the processor data table to the module s memory Block transfer programming also moves co...

Страница 12: ...us External devices transmit analog signals to the module 2 The module converts analog signals into binary format and stores these values until the adapter requests their transfer 3 Your ladder progra...

Страница 13: ...T RET V OUTPUT 3 I RET RET V Removable Label Input Designators Output Designators Keyswitch Position Indicator 3 1794 IE8 1794 OE4 Keyswitch Position Indicator 4 Module Type Module Type INPUT 0 INPUT...

Страница 14: ...as an empty slot in your chassis If the adapter does not recognize your module after installation is completed cycle power to the adapter If this product has the CE mark it is approved for installati...

Страница 15: ...his publication as well as the following Allen Bradley publications Industrial Automation Wiring and Grounding Guidelines For Noise Immunity publication 1770 4 1 Guidelines for Handling Lithium Batter...

Страница 16: ...dc ATTENTION Do not daisy chain power or ground from an analog terminal base unit to any ac or dc discrete module terminal base unit Note Use this configuration if using any noisy dc discrete I O modu...

Страница 17: ...s applied Interruption of the flexbus can result in unintended operation or machine motion 1 Remove the cover plug if used in the male connector of the unit to which you are connecting this terminal b...

Страница 18: ...the female flexbus connector C into the adjacent terminal base or adapter female connector to complete the flexbus connections 9 Repeat the above steps to install the next terminal base Panel Wall Mou...

Страница 19: ...s and the adapter Important Make certain that the mounting plate is properly grounded to the panel Refer to Industrial Automation Wiring and Grounding Guidelines publication 1770 4 1 4 Hold the adapte...

Страница 20: ...ay to the left to connect with the neighboring terminal base adapter You cannot install the module unless the connector is fully extended 3 Make sure that the pins on the bottom of the module are stra...

Страница 21: ...mage by sending an erroneous signal to your system s field devices causing unintended machine motion causing an explosion in a hazardous environment Repeated electrical arcing causes excessive wear to...

Страница 22: ...Q WR WHUPLQDO RQ WKH URZ 77 17 21 7R UHGXFH VXVFHSWLELOLW WR QRLVH SRZHU DQDORJ PRGXOHV DQG GLVFUHWH PRGXOHV IURP VHSDUDWH SRZHU VXSSOLHV R QRW H FHHG D OHQJWK RI IW P IRU GF SRZHU FDEOLQJ 77 17 21 5H...

Страница 23: ...H SRVLWLRQ ZLOO DSSHDU WR WKH DGDSWHU DV DQ HPSW VORW LQ RXU FKDVVLV I WKH DGDSWHU GRHV QRW UHFRJQL H RXU PRGXOH DIWHU LQVWDOODWLRQ LV FRPSOHWHG F FOH SRZHU WR WKH DGDSWHU 7DEOH LULQJ FRQQHFWLRQV IRU...

Страница 24: ...UHQW RPPRQ 5 7 9ROWDJH 6LJQDO 9 9ROWDJH RPPRQ 5 7 XUUHQW 6LJQDO XUUHQW RPPRQ 5 7 9ROWDJH 6LJQDO 9 9ROWDJH RPPRQ 5 7 XUUHQW 6LJQDO XUUHQW RPPRQ 5 7 9ROWDJH 6LJQDO 9 9ROWDJH RPPRQ 5 7 XUUHQW 6LJQDO XUUH...

Страница 25: ...HQW 9ROWDJH 9 2XWSXW XUUHQW 6LJQDO XUUHQW RPPRQ 5 7 9ROWDJH 6LJQDO 9 9ROWDJH RPPRQ 5 7 XUUHQW 6LJQDO XUUHQW RPPRQ 5 7 9ROWDJH 6LJQDO 9 9ROWDJH RPPRQ 5 7 9 GF RPPRQ WKUX 9 GF SRZHU 7 DQG 7 WKUX 7HUPLQD...

Страница 26: ...3 5 1 2 287387 2 287387 5 7 5 7 9 287387 5 7 5 7 9 287387 5 7 5 7 9 287387 5 7 5 7 9 OOHQ UDGOH 6WDWXV QGLFDWRU QGLFDWHV SRZHU DSSOLHG WR PRGXOH 2 1387 1387 1387 1387 3 5 9 9 9 9 1 2 20 2 2 OOHQ UDGOH...

Страница 27: ...e to the processor s data table The processor user program initiates the request to transfer data from the module to the processor The transferred words contain module status channel status and input...

Страница 28: ...rent block transfer control file is required for every module A sample program segment with block transfer instructions is shown in Figure 3 1 and described below Figure 3 1 PLC 3 Family Sample Progra...

Страница 29: ...lock transfers Note You must create the data file for the block transfers before you enter the block transfer instructions 2 Figure 3 3 PLC 3 Family Sample Program Structure for a 1794 IE4XOE2 Module...

Страница 30: ...sfer write N13 8 15 Power up Bit1 At power up in RUN mode or when the processor is switched from PROG to RUN the user program enables a block transfer read Then it initiates a block transfer write to...

Страница 31: ...e block transfers At power up in RUN mode or when the processor is switched from PROG to RUN the user program enables a block transfer read Then it initiates a block transfer write to configure the mo...

Страница 32: ...04 03 02 01 00 10 09 08 07 06 05 04 03 02 01 00 S S 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 11 10 09 08 07 06 05 04 03 02 01 00 0 A D Unipolar Data Analog Value A D Bipolar Data Analog Value D A...

Страница 33: ...of data table words that are transferred to the module using a block transfer write instruction The software configurable features available are input output range selection including full range and...

Страница 34: ...your output module will maintain in the event of a network communication error When the multiplex control bits M are cleared simultaneously by a communication error or by the user the analog outputs...

Страница 35: ...6 Input Data Channel 7 Underrange Configure select Input Size Output Size 0 or 1 Word 1 to 9 Words PU Analog Input Module 1794 IE8 Read Word Dec Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Wo...

Страница 36: ...analog data 12 bit left justified two s complement number unused lower bits are zero 4 20mA uses all 16 bits Word 5 Bits 15 17 Channel 5 analog data sign bit Word 6 Bits 00 14 00 16 Channel 6 analog...

Страница 37: ...1 0 1 0 1 10 to 10V dc 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Off1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C Configure select bit F Full range bit 1 When configured to off individual channels will return 0000H on S...

Страница 38: ...6 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read Word 0 PU Not used set to 0 W3 W2 W1 W0 Where W Diagnostic bits for current output wire broken or load resistance high Not used on voltage outputs PU P...

Страница 39: ...e Channel 3 Where S Sign bit in 2 s complement M Multiplex control C Configure select bit F Full range bit Range Selection Bits for the 1794 OE4 B Analog Output Module Word 5 Channel No Channel 0 Chan...

Страница 40: ...full range and configure select bits are preserved at their last setting Bits 04 15 04 17 Not used set to 0 Bits 00 03 Full range bits F for individual channels Bit 00 corresponds to output channel 0...

Страница 41: ...2 S Analog Value Input Channel 2 Word 3 S Analog Value Input Channel 3 Word 4 PU Not used set to 0 W1 W0 U3 U2 U1 U0 Where S sign bit in 2 s complement W Diagnostic bits for current output wire broken...

Страница 42: ...onds to channel 0 bit 01 corresponds to channel 2 and so on Word 4 Bits 06 14 06 16 Not used Bit 15 17 Power Up bit included in series B modules only This bit is always 0 in series A modules This bit...

Страница 43: ...0mA uses all 16 bits Word 1 Bits 15 17 Channel 1 analog data sign bit Word 2 Bits 00 01 Multiplex control bits M for individual channels These bits control the safe state analog outputs Bit 00 corresp...

Страница 44: ...justified two s complement number unused lower bits are zero 4 20mA uses all 16 bits Word 6 Bits 15 17 Channel 0 Safe State analog data sign bit Word 7 Bits 00 14 00 16 Channel 1 Safe State analog val...

Страница 45: ...3 Output data is received by the adapter in the order of the installed I O modules The Output data for Slot 0 is received first followed by the Output data for Slot 1 and so on up to slot 7 The first...

Страница 46: ...odule Fault 3 This bit is set 1 when an error is detected in slot position 3 I O Module Fault 4 This bit is set 1 when an error is detected in slot position 4 5 This bit is set 1 when an error is dete...

Страница 47: ...nput Data Channel 1 Input Data Channel 2 Input Data Channel 3 Input Data Channel 4 Input Data Channel 5 Input Data Channel 6 Input Data Channel 7 Underrange Configure select Not used Not used Not used...

Страница 48: ...10 03 11 04 12 05 13 06 14 07 15 0 10V dc 0 20mA 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 4 20mA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 10 to 10V dc 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Off1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0...

Страница 49: ...U for individual channels 4 20mA current input only Bit 00 corresponds to input channel 0 bit 01 corresponds to input channel 1 and so on When set 1 indicates either a broken or open input wire or inp...

Страница 50: ...13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read Words PU Not used set to 0 W3 W2 W1 W0 Read Word 1 Where PU Power up bit included in serie...

Страница 51: ...the wire on the output is broken or the load resistance is too high Bit 00 corresponds to channel 0 bit 01 corresponds to channel 2 and so on Read Bits 04 14 Not used set to 0 Read Word 1 Bit 15 Powe...

Страница 52: ...rresponds to output channel 1 and so on Refer to range selection above Write Word 6 Bits 04 07 Not used set to 0 Write Word 6 Bits 08 11 Configure select bits C for individual channels Bit 08 correspo...

Страница 53: ...nput Size Output Size 0 to 4 Words 0 to 5 Words Read Write OE PU Analog Combo Module 1794 IE4XOE2 B Read Decimal Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size Octal Bit 17 16 15 14 13 12 11...

Страница 54: ...05 13 4 20mA 0 1 0 1 0 1 0 1 0 1 0 1 0 10V dc 0 20mA 1 0 1 0 1 0 1 0 1 0 1 0 10 to 10V dc 1 1 1 1 1 1 1 1 1 1 1 1 Off1 0 0 0 0 0 0 0 0 0 0 0 0 C Configure select bit F Full range bit 1 When configure...

Страница 55: ...it left justified two s complement number unused lower bits are zero 4 20mA uses all 16 bits Write Word 2 Bits 15 Channel 1 analog data sign bit Write Word 3 Bits 00 01 Output Enable bits Bit 00 corre...

Страница 56: ...For example for the 8 input analog module you have 9 input words and 6 output words You can change the I O data size for a module by reducing the number of words mapped into the adapter module as sho...

Страница 57: ...50Hz 11 4dB 60Hz 3db 9Hz 20db decade 15 3dB 50Hz 16 8dB 60Hz Step Response to 63 Voltage Terminal Current Terminal 9 4ms 18 2ms Input Impedance Voltage Terminal Current Terminal 100k ohms 238 ohms Inp...

Страница 58: ...operating 5 to 80 noncondensing nonoperating 30 g peak acceleration 11 1 ms pulse width 50 g peak acceleration 11 1 ms pulse width Tested 5 g 10 500Hz per IEC 68 2 6 Conductors Wire Size Category 12...

Страница 59: ...output until module is configured 10V user configurable 0 10V user configurable Step Response to 63 of FS 24ms Current Load on Voltage Output 3mA maximum Resistive Load on mA Output 15 750 ohms Absol...

Страница 60: ...ncondensing operating 5 to 80 noncondensing nonoperating 30 g peak acceleration 11 1 ms pulse width 50 g peak acceleration 11 1 ms pulse width Tested 5 g 10 500Hz per IEC 68 2 6 Conductors Wire Size C...

Страница 61: ...18 2ms Input Impedance Voltage Terminal Current Terminal 100k ohms 238 ohms Input Resistance Voltage Terminal Current Terminal 200k ohms 238 ohms Absolute Accuracy1 Voltage Terminal Current Terminal...

Страница 62: ...rent 24V dc nominal 19 2 to 31 2V dc includes 5 ac ripple 70mA 24V dc Dimensions Inches Millimeters 1 8H x 3 7W x 2 1D 45 7 x 94 0 x 53 3 Environmental Conditions Operational Temperature Storage Tempe...

Страница 63: ...e 0mA output until module is configured 4 20mA user configurable 0 20mA user configurable Output Voltage Terminal 2V output until module is configured 10V user configurable 0 10V user configurable 0V...

Страница 64: ...10110 22 To get the negative using the two s complement method you must invert each bit from right to left after the first 1 is detected In the above example 0 10110 22 Its two s complement would be...

Страница 65: ...10 Volt Mode 0 10 Volt M d Current mA 4 20mA Mode 0 20mA Mode Voltage V Input Output 0 10 Volt Mode 10 50 8000 8000 0 00 0000 10 00 8620 8618 1 00 0618 9 00 9250 9248 2 00 0C30 8 00 9E80 9E78 3 00 124...

Страница 66: ...egrees N30 0 Desired Range Actual Range X Analog Input Data Offset F8 0 32 Scaled Data degrees N30 0 See ladder logic below F8 0 32 COMPUTE DESTINATION EXPRESSION F8 0 968 0001 This rung will scale FL...

Страница 67: ...ramming 3 1 block transfer read 4 2 1794 OE4 B 4 6 block transfer write 1794 IE4XOE2 4 10 1794 IE8 B 4 3 1794 OE4 B 4 6 configuration block 4 10 1794 IE8 B 4 4 1794 OE4 B 4 7 input range selection 4 2...

Страница 68: ...I O structure 5 1 power defaults 5 12 programming example PLC 3 3 2 PLC 5 3 4 R range selecting 4 2 range selection 1794 IE4XOE2 4 11 5 10 1794 IE8 5 4 1794 OE4 5 7 1794 IE8 B 4 5 1794 OE4 B 4 7 remo...

Страница 69: ...Allen Bradley Publication Problem Report If you find a problem with our documentation please complete and return this form...

Страница 70: ...Accuracy Completeness What information is missing Clarity Sequence What is not in the right order What is unclear Other Comments Use back for more comments Your Name Location Phone Return to Marketing...

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Страница 72: ...re and documentation updates technical subscription services Engineering and Field Services application engineering assistance integration and start up assistance field service maintenance support Tec...

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