Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 36)

2–16 How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
Definition Decimal Bit Word
Bits 00-07
Underrange bits (U) for individual channels (4Ć20mA 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
below 4Ć20mA.
Read Word 9 Bits 08Ć14 Not used - set to 0.
Bit 15
Power Upbit - included in series B modules only. This bit
is 0 in series A modules. This bit is set to 1 when all bits in
the configuration register are 0 (unconfigured state). The
configuration register can be cleared by either of the reset
inputs, or by the user writing all zeroes to it.
Write Word 1
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. Refer to range selection above.
Write Word 1
Bits 08-15
Configure select bits (C) for individual channels - Bit 08
corresponds to input channel 0, bit 09 corresponds to input
channel 1, and so on. Refer to range selection above.
Write Word 2 Bits 00-15 Not used - set to 0.
Write Word 3 Bits 00-15 Not used - set to 0.
Write Word 4 Bits 00-15 Not used - set to 0.
Write Word 5 Bits 00-15 Not used - set to 0.
Write Word 6 Bits 00-15 Not used - set to 0.