Output Holding Function Cancellation Setting - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U
FX -4DA-ADP (4-channel Analog Output)
3U
4.4

Output Holding Function Cancellation Setting

This setting can hold the analog data output or to output the offset data (0V for voltage output mode, 4mA for
current output mode) when the PLC stops.
To cancel or set the output holding function, use the following special auxiliary relays:
• FX Series PLC
3S
Special auxiliary
relay
M8284
M8285
M8286
M8287
• FX /FX
3G 3GC
Special auxiliary
relay
1st
M8284
M8285
M8286
M8287
• FX /FX
3U 3UC
Special auxiliary relay
1st
M8264
M8265
M8266
M8267
1. Program Example (For FX
To set or cancel the output holding function for a channel, create a sequence program as follows:
1) To set the output holding function for
channel 1 of the 1st analog special adapter:
M8001
Normally OFF
F-22
PLC User's Manual - Analog Control Edition
3UC
Cancel output holding function
setting for channel 1
Cancel output holding function
setting for channel 2
Cancel output holding function
setting for channel 3
Cancel output holding function
setting for channel 4
Series PLC
2nd
Cancel output holding function
M8294
setting for channel 1
Cancel output holding function
M8295
setting for channel 2
Cancel output holding function
M8296
setting for channel 3
Cancel output holding function
M8297
setting for channel 4
Series PLC
2nd 3rd 4th
M8274 M8284 M8294
M8275 M8285 M8295
M8276 M8286 M8296
M8277 M8287 M8297
/FX
3U 3UC
M8264
4.4 Output Holding Function Cancellation Setting
Description
OFF: Holds the analog data output just before stop of the
PLC.
ON : Outputs the offset data at stop of the PLC.
Description
OFF: Holds the analog data output just before stop of the
PLC.
ON : Outputs the offset data at stop of the PLC.
Cancel output holding function
setting for channel 1
Cancel output holding function
setting for channel 2
Cancel output holding function
setting for channel 3
Cancel output holding function
setting for channel 4
Series PLC)
2) To cancel the output holding function for
channel 2 of the 1st analog special adapter:
M8000
Normally ON
4 Programming
Description
OFF: Holds the analog data output
just before stop of the PLC.
ON : Outputs the offset data at
stop of the PLC.
M8265