Rockwell Automation 1794-XXXX FLEX I/O High-Density Analog Modules - Manual (Page 68)

Publication 1794-UM062A-EN-P - September 2012
60 Data Tables
Write word 1 Bits 00…14
(00…16) Channel 0 analog data – 12-bit left justified two’s complement
number; unused lower bits are zero; 4...20mA uses all 16 bits.
Bit15 (17) Channel 0 analog date sign bit.
Write word 2 Bits 00…14
(00…16) Channel 1 analog data – 12-bit left justified two’s complement
number; unused lower bits are zero; 4...20mA uses all 16 bits.
Bit15 (17) Channel 1 analog date sign bit.
Write word 3 Bits 00…01 Output Enable bits – Bit 00 corresponds to output 0, bit 01
corresponds to output 1, and so on. These bits must be set to 1.
Bits 02…15
(02…17) Not used – set to 0.
Write word 4 Bits 00…05 Full range bits (F) for individual channels – Bit 00 corresponds to input
channel 0, bit 01 corresponds to output channel 1, and so on.
Bits 06…07 Not used – set to 0.
Bit 08…13
(10…15) Configure select bits (C) for individual channels – Bit 08 corresponds
to input channel 0, bit 09 (11) corresponds to input channel 1, bit 10 (12)
corresponds to input channel 2, bit 11 (13) correspoinds to input channel
3, bit 12 (14) corresponds to output channel 0, and bit 13 (15)
corresponds to output channel 1. Refer to Range Bit Selections.
Bits 14…15
(16…17) Not used – set to 0.
Write words
5…10 Bits 00…15 Not used – set to 0.
Word/Bit Descriptions – 1794-IE4XOE2/B and 1794-IE4XOE2XT Analog Combo Module
Word Decimal Bit Definition