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3 SPECIFICATIONS
3.2.12 Control output setting at CPU stop error occurrence
3 - 19
(3) The Q64TC allows four different alerts (alert alarms 1 to 4) to be selected and
used from among the alert alarms, wait alert alarm and re-wait alert alarm.
Set the alert alarms used as alert alarms 1 to 4 at the following buffer memory
addresses:
• Alert alarm 1: C0
• Alert alarm 2: D0
(4) Set the alert set value, alert dead band value and alert delay count at the following
buffer memory addresses:
Channel No.
1
2
3
4
(1) You can set the Q64TC control output (HOLD/CLEAR) to be provided when the
PLC CPU has generated a stop error.
(2) To make this setting, use the intelligent function module switch setting on GX
Developer.
• CLEAR : Stops the PID control, temperature judgement and alert judgement
functions and turns off external outputs.
• HOLD
: Holds the control status prior to a PLC CPU stop. For example, when
PID control was exercised before a PLC CPU stop, PID control is
continued if the PLC CPU stops.
Refer to Section 4.5 for details of the setting method.
to C3
• Alert alarm 3: E0
H
H
to D3
• Alert alarm 4: F0
H
H
Buffer memory addresses
Alert set value
Alert dead band value
26
to 29
H
H
46
to 49
H
H
66
to 69
H
H
86
to 89
H
H
MELSEC-Q
to E3
H
H
to F3
H
H
Alert delay count
A4
A5
H
H
3 - 19
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