13 SERIAL COMMUNICATION MODULE DEDICATED COMMANDS
13.5 Programmable controller CPU monitoring function
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CPU error monitoring, CPU status information
Specify whether to perform error monitoring for the host station CPU module.
When the error monitoring is performed, the CPU monitoring result is stored in the response data as a CPU status
information.
The following values are stored in the CPU status information.
■Data communication in ASCII code
Convert the numerical value to 4-digit ASCII code (hexadecimal) and store it in the 'Device Data' in the following format from
upper digits.
■Data communication in binary code
Store the 2-byte numerical values in the 'Device Data' in the following format from lower byte (L: bits 0 to 7).
Monitoring condition
When 'fixed cycle send' is specified with the programmable controller CPU monitoring function, specify '0'.
When 'condition match send' is specified with the Programmable controller CPU monitoring function, specify the value below.
The timing to send the result can be selected.
• Edge trigger transmission: Send the result when the condition matches.
• Level trigger transmission: Send the result in the cycle time interval during the condition matches
CPU error monitoring ASCII code Binary code
Do not perform error monitoring for the host
station CPU module.
Perform error monitoring for the host station CPU
module.
Specified value CPU status
0000H During normal operation
0001H Module warning occurring
0002H Module error/module system error occurring
ASCII code Binary code
Edge trigger
transmission
Level trigger
transmission
Monitoring condition Device type that can be
specified
0001H 0101H ON/OFF status of device = ON/OFF status of monitoring
condition
Bit device
Device value = Monitoring condition value Word device
0002H 0102H ON/OFF status of device ON/OFF status of monitoring
condition
Bit device
Device value Monitoring condition value Word device
010
30
H
31
H
30
H
0
30
H
000
30
H
30
H
30
H
0
30
H
0
30
H
0
30
H
0
30
H
1
31
H
Device data
01H 00H 00H 00H 01H 00H
Device data
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