156
8 FUNCTIONS
8.2 Output HOLD/CLEAR Setting Function
8.2 Output HOLD/CLEAR Setting Function
Sets whether to hold or clear the last output value when the I/O module is disconnected from data link, when the CPU module
operating status is STOP, or when the CPU module operation is suspended by an error.
Output HOLD/CLEAR setting and its operation
When HOLD or CLEAR is set for an output, the output is turned on or off as follows.
*1 When the CPU module is in STOP status, the output can be turned on or off at any desired time by performing the CPU module in STOP
external output test function.
If a moderate or major error has occurred in the I/O module, output turns off regardless of the output HOLD/CLEAR setting.
Setting procedure
Set HOLD or CLEAR using the function setting switch 5 of I/O module.
The setting of the output HOLD/CLEAR setting function is determined by the status of function setting switch 5 when the I/O
module is powered on.
When the setting of function setting switch 5 is changed while the I/O module is on, a function setting switch 5 changed error
(error code: 0205H) occurs, and the changed setting of the output HOLD/CLEAR setting function is not applied.
The setting status of the output HOLD/CLEAR setting can be checked by Output HOLD/CLEAR setting status (RWr2.b3). For
details, refer to the following.
Page 233 Output HOLD/CLEAR setting status (RWr2.b3)
Operating status Output HOLD/CLEAR setting
CLEAR
Output HOLD/CLEAR setting
HOLD
Last output status
OFF
Last output status
ON
Last output status
OFF
Last output status
ON
Data link in operation CPU module in RUN Off On Off On
CPU module in STOP
*1
Off Off Off On
CPU module in PAUSE Off On Off On
CPU module in RESET Off Off Off On
CPU module suspended by
error
Off Off Off On
During disconnection/cyclic stop Off Off Off On
Function setting switch 5 Output HOLD/CLEAR setting
Off CLEAR (Factory default)
On HOLD
To Next Page
Loading...
Need help?
General
