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6 USING THE PROGRAMMABLE CONTROLLER CPU MONITORING FUNCTION
6.2 Programmable Controller CPU Monitoring Function
■Monitoring condition
In the condition match send for device monitoring, the start device for each block is the monitoring target for condition
monitoring of each block device.
For the condition match send, the monitoring conditions that can be designated for the device to be registered by the user and
the registration values when designating the monitoring condition are listed in the table below.
Register the monitoring conditions for the start device of each block using the following table.
■Monitoring condition value, status
In device monitoring, register the monitoring condition value or status for C24 to judge that the numeric value/status of the
monitoring device for condition match send (start device of each block) satisfy the condition with numeric values listed below.
Condition satisfies when M0 = ON
Registration value for the monitoring condition: 0001H
Registration value for the monitoring condition value or status: 0001H
Condition satisfies when D0 > 100 (signed)
Registration value for the monitoring condition: 000AH
Registration value for the monitoring condition value or status: 100 (64H)
In status monitoring for the CPU module, the monitoring conditions and condition values for condition match
send are not registered.
Instead, it is registered whether or not the status monitoring of CPU module will be performed.
Monitoring results in the condition match send are transmitted only once when an error is detected by the
status information read from the CPU module for the first time.
Monitoring condition Registration value Valid designated
device
For edge
triggered
transmissions
For level
triggered
transmissions
Bit Word
Device value or status = device monitoring condition value or status 0001H 0101H
Device value or status device monitoring condition value or status 0002H 0102H
Unsigned Monitoring device monitoring condition value 0003H 0103H
Monitoring device < monitoring condition value 0004H 0104H
Monitoring device monitoring condition value 0005H 0105H
Monitoring device > monitoring condition value 0006H 0106H
Signed Monitoring device monitoring condition value 0007H 0107H
Monitoring device < monitoring condition value 0008H 0108H
Monitoring device monitoring condition value 0009H 0109H
Monitoring device > monitoring condition value 000AH 010AH
Type of monitoring device Monitoring condition value or status Registration value
Bit device OFF 0000H
ON 0001H
Word device Numerical value 0000H to FFFFH
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