Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 61)

2–41 How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
Definition
Decimal Bit
(Octal Bit)
Word
Bits 00 Reserved
Bits 01
Calibration Done bit (DN). - This bit is set to 1 after a calibration cycle is
completed.
Bit 02
Calibration Bad bit (BD). - This bit is set to 1 if the channel calibration
coefficients cannot be saved or be read properly.
Bits 03-07 Set to 0.
Bits 08-11
(10-12)
Reserved
Read Word 6 Bit 12 (14) Set to 0
Bit 13 (15)
Configuration mode bit (CF) - This bit is set (1) when the calibration mode
is selected (bit 15, word 5 in the block transfer write set to 1). When this bit is
set (1), the module status indicator flashes.
Bit 14 (16)
Field Power Off bit (FP) - This bit is set (1) when the 24V field power fails.
When this bit is set (1), the module status indicator flashes.
Bit 15 (17)
Power Up (unconfigured state) bit (PU). - This bit is set (1) when the
configuration word is all zeroes (0) due to a reset (adapter power cycle or
module insertion) or a cleared configuration word (all 0). When this bit is set
(1), the module status indicator flashes.
Bits 00-03
Underrange bits (U). - These bits are set (1) when the input channel is
below a preset limit as defined by the configuration selected. U0 (bit 00)
corresponds to input channel 0 and U1 (bit 01) corresponds to input
channel 1, etc. Refer to Configuring Your Input Channels.
Read Word 7
Bits 04-07
Overrange bits (V). - These bits are set (1) when the input channel is above
a preset limit as defined by the configuration selected. Bit 04 corresponds to
input channel 0 and bit 05 corresponds to input channel 1, etc. Refer to
Configuring Your Input Channels.
Bits 08-15
(10-17)
Not used. Set to 0.
Write Word 1 Bits 00-14
(00-16)
Not used. Set to0.
Bit 15 (17) Output enable bit (EN). - Not used in the 1794ĆIF4I module.
Write Word 2 Channels 0 through 3 Filter Selections (refer to Setting the Input Filter )
Bits 00-03 Channel 0 Filter Setting
Bits 04-07 Channel 1 Filter Setting
Bits 08-11
(10-13)
Channel 2 Filter Setting
Bits 12-15
(14-17)
Channel 3 Filter Setting