Rockwell Automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Modules - Manual (Page 77)

Publication 1794-UM065B-EN-E - September 2010
1794-IF8IH and 1794-OF8IH Configuration 65
Default: 0
HART Disable Channel 0 to 7 (8 of 1 bit)
When this bit is set, the I/O module is inhibiting its HART Communication.
Range: 0=Enable, 1=Disable
Default: 0
HART Current Fault Limit (8 of 5 bits)
Delivers the percentage value (in steps of 1%, starting @ 5%) of the threshold
for causing a HART current fault indication (input signal deviation HART/
Analog) = 31% maximum deviation.
If there is no HART transmitter on the loop or the loop is not in the
transmitter list the function is switched off internally in the I/O module.
Range:
0=Disabled,
1…4=Not supported by the I/O module. A configuration request of 1…4
causes a value of 5 to be utilized by the module.
5…31=Percentage threshold data (5…31%)
Default: 0
Analog Data Format (8 of 4 bits each)
Specifies the module data format for a channel. Formats 2, 5, 6, 8, 9, 10, 12
and 15 are not assigned.
If a module channel has never been configured then it can be assumed to have
the default configuration Analog Data Format "0", 0…20mA and Analog
Mode Fault State minimum range. If a non-assigned format is selected, then
the diagnostic "2" for configuration failure is set and the module channel goes
to the default fault state minimum range.
If, on the other hand, the configuration is changed from the default, and then
changed again to a non-assigned format, then the diagnostic bit "2" for
configuration failure is set and the module goes to the fault state for the last
valid configuration.
Formats 13 and 14 are 2's complement data formats, and require data to the
module in that form.