Mitsubishi Electric Q03UDVCPU User Manual page 72

(3) Request frame
Device Item
Request data
+0
S2
length
Monitoring timer
+1
S2
+2 to
S2
Request data
+n
S2
*1 The "Set by" column indicates the following.
User: The data must be set before executing the SP.SLMPSND instruction.
(4) Response frame
Device Item
Response data
+0
D1
length
End code
+1
D1
+2 to
D1
Response data
+n
D1
*1 The "Set by" column indicates the following.
System: The CPU module stores the execution result of the SP.SLMPSND instruction.
70
Description
Specify the data length from the monitoring timer to the request
data. (In units of bytes)
This timer sets the waiting time for the external device that received
a request message to wait for the response after it issued a
processing request to the access destination. (Unit: Increments of
250ms)
0: Infinite wait
1 to 65535: 1 to 65535 × 250ms
The request data of the MC protocol message is stored.
Description
The data length from the end code to the response data is stored.
(In units of bytes)
The result of command processing is stored. In normal end, 0 is
stored. In abnormal end, an error code set by the external device is
stored.
Execution results for the request data are set. (Some commands do
not return response data.)
Setting range
Set by
1 to 2000 User
0 to 65535 User
- User
Setting range
Set by
2 to 2000 System
- System
- System
*1
*1