Rockwell Automation 1769-OF4VI Compact I/O Isolated Analog Modules - Manual (Page 66)

Publication 1769-UM014B-EN-P - May 2010
4-14 Module Data, Status, and Channel Configuration for the Output Modules
1769-OF4CI and -OF4VI Program/Idle Mode (PM)
This configuration selection provides individual program/idle mode selection
for the analog channels. When this selection is disabled [the bit is reset (0)], the
module holds the last state, meaning that the analog output remains at the
last converted value prior to the condition that caused the control system to
enter the Program mode.
If this selection is enabled [the bit is set (1)] and the system enters the program
mode, it commands the module to convert the user-specified value from the
channel’s Program/Idle mode word to the appropriate analog output for the
range selected.
1769-OF4CI and -OF4VI Program/Idle to Fault Enable (PFE)
If a system currently in program/idle mode faults, this setting determines
whether the program/idle or fault value is applied to the output. If the
selection is enabled [the bit is set (1)], the module applies the fault value. If the
selection is disabled [the bit is reset (0)], the module applies the program/idle
mode data value. The default setting is disabled.
IMPORTANT
Hold last state is the default condition for the 1769-OF4CI
and -OF4VI during a control system run-to-program mode
change.
TIP
The MicroLogix 1500 and CompactLogix controllers do
not support Hold Last State. This functionality is only
supported when the analog module is used on the
DeviceNet network via the 1769-ADN adapter.
TIP
Not all controllers support this function. Refer to your
controller’s user manual for details.
TIP
Not all controllers support this function. Refer to your
controller’s user manual for details.