Sequence Program Was Used For Initial Setting - Mitsubishi Electric MELSEC Q Series User Manual

7 ONLINE MODULE CHANGE

7.3.2 Sequence program was used for initial setting

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(1) Conversion disable
(a) Turn off the following output signals to stop module operation.
Device No.
POINT
Control may not stop if only Operation mode command (Yn1) is turned off.
To stop control without fail, set PID continuation flag (buffer memory address: A9
for 0 (stop) and turn off Operation mode command (Yn1).
To confirm that control has stopped, make sure that Operation mode status (Xn1) is
off.
(b) If the buffer memory contents to be saved are not yet prerecorded, choose
"Online" - "Monitor" - "" on GX Developer to monitor the buffer memory and
record the values.
POINT
If a CPU continuation error (e.g. SP. UNIT DOWN, UNIT VERIFY ERR.) has
occurred due to the fault of the module to be changed, the buffer memory contents
cannot be saved.
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Yn1
Yn8 E
Yn9 Default setting registration start command
YnB
MELSEC-Q
Signal name
Operation mode command
2
PROM backup start command
Setting change command
)
H
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