Rockwell Automation 1794-XXXX FLEX I/O High-Density Analog Modules - Manual (Page 54)

Publication 1794-UM062A-EN-P - September 2012
46 Data Tables
Read word 6 Bits 00…14
(00…16) Channel 6 analog data – 12-bit left justified two's
complement number; unused lower bits are zero;
4…20 mA uses all 16 bits.
Bit 15 (17) Channel 6 analog data sign bit.
Read word 7 Bits 00…14
(00…16) Channel 7 analog data – 12-bit left justified two's
complement number; unused lower bits are zero;
4…20 mA uses all 16 bits.
Bit 15 (17) Channel 7 analog data sign bit.
Read word 8 Bits 00…07 Underrange bits (U) for individual channels (4…20
mA 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 input current at or below 4 mA.
Bits 08…14
(10…16) Not used – set to 0.
Bit 15 (17) Power Up bit – included in series B modules only.
This bit is always 0 in series A modules. This bit is set
to 1 when all bits in the configuration register (write
word 0) are 0 (unconfigured state). The configuration
register can be cleared by either a reset, or by the user
writing all zeroes to it.
Write word 0 Bits 00…07 Full range bits (F) for individual channels – Bit 00
corresponds to input channel 0, bit 01 corresponds to
input channel 1 and so on.
Bit 08…15
(10…17) Configure select bits (C) for individual channels
– Bit 08 corresponds to input channel 0, bit 09
corresponds to input channel 1 and so on.
Write words
1…5 Bits 00…15
(0…17) Not used – set to 0.
Word/Bit Descriptions – 1794-IE8/B and 1794-IE8XT Analog Input Module
Word Decimal Bit
(Octal Bit) Definition