Allen-Bradley 1794-OF8IH - Page 14

14 FLEX I/O Isolated Output HART Analog Module
Publication 1794-IN120D-EN-P - September 2015
Configuration Map Descriptions
BOA
BOB
Byte order group A
Byte order group B
Byte order group A and B values must match
each other.
Refer to Byte Order table.
FT LocalFaultMode 0 = Outputs set to
safe value on
communication
faults only
1 = Output set to safe
value on any fault
EWn Fault Enable for wire fault
detection on channel n.
(1)
(1)
Not supported in Analog 0…20 mA formats.
0 = Disable wire
off/lead break
detection
1 = Enable wire
off/lead break
detection
(2)
(2)
Lead break must be present for 100 ms or more.
CHn HART Current Ratio HART current fault ratio limit on
channel n
Valid values are 0, or 5...31 percent of full
scale. A value of 0 disables this feature.
Refer to HART Current Ratio table for more
information.
ASFn Channel n Analog Fault Mode
Selection
Refer to the Channel Analog Fault Mode
Selection table.
Ln Channel n Enable Latching of
wire fault
0 = Unlatched 1 = Latched
DFn Channel n Digital Fault Mode
Selection
0 = Reset (0 mA) 1 = Hold Last State
DMn Channel n Enable Digital Mode 0 = Analog 1 = Digital
Fn Fault Mode Channel n 0 = Local/Remote
faults disabled
1 = Enabled
DHn Disable HART communications
on channel n
0 = HART
communications
enabled
1 = HART
communications
disabled
Cn HART CMD 3 Disable 0 = HART CMD 3
communications
enabled
1 = HART CMD 3
communications
disabled
R Reserved
CH n Format Refer to Channel Data Formats table.