Mitsubishi Electric MELSEC iQ-R Series User Manual page 74

When the CPU module status is changed
When the CPU module status is changed during the wave output, the operation of the module varies depending on the setting
of the analog output HOLD/CLEAR function as shown below.
■For HOLD setting
When the CPU module status is changed from RUN to STOP, the analog output at the change is maintained. When the CPU
module status is changed from STOP to RUN, the wave output restarts. To prevent the wave output from restarting, set 'CH1
Wave output start/stop request' (Un\G462) to Wave output stop request (0) after changing the CPU module status from RUN
to STOP.
CPU module status
'CH1 D/A conversion
enable/disable
setting' (Un\G500)
'CH1 Output enable/disable
flag' (Y1)
'CH1 Wave output start/stop
request' (Un\G462)
'CH1 Wave output status
monitor' (Un\G401)
Wave data
Output according to the setting of
'CH1 Output setting during wave
output stop' (Un\G524)
(1) Analog output value is held.
(2) The wave output restarts.
Precautions
Module parameter setting is reflected at the timing when the CPU module is changed from STOP to RUN.
At this time, the process same as the one executed when turning on and off 'Operating condition setting request' (Y9) is
received inside the D/A converter module is executed. Therefore, if the CPU module is changed from STOP to RUN when
'CH1 Wave output status monitor' (Un\G462) is not During wave output stop (0), an operating condition setting request error in
a state other than wave output stop (alarm code: 0B0H) occurs.
To clear the alarm, turn on and off 'Warning output clear request' (YE).
1 FUNCTIONS
72
1.14 Wave Output Function
RUN
D/A conversion enable (0)
OFF
Wave output stop
request (0)
During wave
output stop (0)
Analog output
Offset value
STOP
ON
Wave output start
request (1)
During wave During wave
output (1) output stop (0)
(2)
(1)
RUN