Mitsubishi Electric Q03UDVCPU User Manual page 75

(6) Error
A detection of an operation error turns on the Error flag (SM0) and a corresponding error code is stored in SD0
when:
• An instruction is used in a CPU module with a serial number (first five digits) of "18111" or earlier.
• The value specified by
• The value specified by
• The device specified by
• A device which cannot be specified is specified.
When the instruction completes with an error, the completion status indication device
code is stored in the completion status
following.
QCPU User's Manual(Hardware Design, Maintenance and Inspection)
(7) Precautions
• When executing multiple SP.SLMPSND instructions concurrently, be careful not to overlap the channels of
the SP.SLMPSND instructions. Multiple SP.SLMPSND instructions specifying the same channels cannot be
used concurrently. When the execution conditions of the SP.SLMPSND instructions in the same channel are
satisfied in the same sequence scan, only the SP.SLMPSND instruction that has been executed first is
enabled and the subsequent SP.SLMPSND instructions are not executed. In addition, any subsequent
SP.SLMPSND instruction of the same channel setting as the SP.SLMPSND instruction being executed is not
executed.
• Specify the arrival monitoring time (
frame so that the value of the arrival monitoring time is equal to or greater than that of the monitoring timer.
CPU module
+11
S1
(1) Request message
(2) Processing request from external device to request destination
(3) Processing response from request destination to external device
(4) Response message
+2 as the host station channel number is outside the specified range.
S1
+0 as the request data length is out of the range of 1 to 2000.
S2
, , , or exceeds the range of the number of device points.
S1 S2 D1 D2
+1. For the error code stored in the completion status
S1
+11) of the control data and monitoring timer (
S1
External device
(1)
(2)
+1
S2
(3)
(4)
CHAPTER 5 MC PROTOCOL COMMUNICATION
D2
Request
destination
(Error code: 4002)
(Error code: 4101)
(Error code: 4100)
(Error code: 4101)
(Error code: 4004)
+1 turns on and an error
+1, refer to the
S1
+1) of the request
S2
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