Rockwell Automation 1769-IF4XOF2 Compact Combination Analog Module - Manual (Page 18)

18 Compact™ Combination Analog I/O Module
Publication 1769-IN057A-EN-P - July 2001
Hold Last State (0) – When reset, this bit directs the module to hold the
analog output at the last converted value when the module transitions to
Program Mode. This is the default condition.
User-Defined Safe State (1) – When this bit is set and the module transitions
to Program mode, the module converts the user-specified integer value from
the Channel x Program Value Word (3 or 5) to the appropriate analog output
for the configured range as wired.
•
FMx = These bits provide Fault Mode selection for analog output channels 0
and 1.
Hold Last State (0) – When reset, this bit directs the module to hold the
analog output at the last converted value when the module transitions to
Fault Mode. This is the default condition.
User-Defined Safe State (1) – When this bit is set and the module transitions
to Fault mode, the module converts the user-specified integer value from the
Channel x Fault Value Word (2 or 4) to the appropriate analog output for the
configured range as wired.
•
PFEx = The Program to Fault Enable bit determines which data value,
Program (PFEx = 0) or Fault (PFEx = 1), is applied to the output if the
module undergoes a fault condition while in the Program Mode, resulting in
a change to Fault Mode.
•
Channel x Program (Idle) Value
Words 3 and 5 allow you to enter the integer values that output Channel 0
(Word 3) and output Channel 1 (Word 5) should assume when the system
transitions to the Program mode. The value must be in increments of 128 (0,
128, 256, etc.) for proper operation. If the value entered is outside the
acceptable increment or range, the module generates a configuration error
for that channel. The module default is zero.
••••
Channel x Fault Value
Words 2 and 4 allow you to enter the integer values that output Channel 0
(Word 2) and output Channel 1 (Word 4) should assume when the system
transitions to the Fault mode. The value must be in increments of 128 (0,
128, 256, etc.) for proper operation. If the value entered is outside the
acceptable increment or range, the module generates a configuration error
for that channel. The module default is zero.
IMPORTANT
PMx, FMx, PFEx, Channel x Program (Idle) Value, and Channel x
Fault Value functions are not supported by all controllers. Refer
to your controller’s user manual for details.