Stop Mode Setting (Buffer Memory Address 33, 65: Un\G33, Un\G65); Set Value (Sv) Setting (Buffer Memory Address 34, 66: Un\G34, Un\G66) - Mitsubishi Electric MELSEC-Q Series User Manual

3 SPECIFICATIONS

3.5.12 Stop mode setting (buffer memory address 33, 65: Un\G33, Un\G65)

3.5.13 Set value (SV) setting (buffer memory address 34, 66: Un\G34, Un\G66)

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(1) A mode when the PID operation is stopped by Forced PID control stop
command (YnC, YnD) is set.
The default is set to "Monitor".
(2) The following table describes the setting modes and operations of each mode.
Setting
Setting mode
value
Stop
Monitor
Alert
Note that the operation differs depending on the unused channel setting,
setting/operation mode status, PID continuation flag, forced PID control stop
command, and control output setting at CPU stop error (refer to Section 3.2.19).
(a) Measured value judgment: Checks if the measured value is within the input
range.
(b) Alert judgment: Checks if there is any alert (1 to 4).
POINT
The default is set to "Monitor".
Because of this, if no temperature sensor is connected to a channel, a sensor input
disconnection occurs and the ALM LED flashes.
Set "1 (unused)" to Unused channel setting (buffer memory address: 61, 93) for
such channel.
(1) The set value of PID operation is set. The default is set to 0.
(2) The setting range is within the input range specified in the input range setting
(refer to Section 3.1.1 (1), 3.5.11).
Set a value that satisfies the following condition in Upper/lower setting limiter
(buffer memory address: 55, 56, 87, 88):
• Lower setting limiter
(3) If a value out of the setting range is set, a write error occurs. Then Error flag
(Xn2) turns on and the error code 4 is stored to Error code (buffer memory
address: 0).
Operation
Measured
PID
operation
judgment
0
1
2
Set value (SV) setting
Alert
value
judgment
Upper setting limiter
MELSEC-Q
: Executed
: Not executed
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