Mitsubishi Electric Melsec Q Series User Manual page 178

6 DEDICATED INSTRUCTIONS
[Operation when the MSEND instruction is being executed]
MSEND instruction
Completion device
Ethernet
module
Mail server
Errors
Caution
6 - 11
(D)
(D) + 1
(1) When a dedicated instruction completes abnormally, the abnormal completion
signal (D) + 1 turns on and the error code is stored in the completion status (S1)+1.
See the following manuals regarding the error codes, check the errors and take
corrective actions.
<Error codes>
4FFF or less : User's Manual (Hardware Design, Maintenance and
H
C000 or higher: User's Manual (Basic)
H
(1) Construct an interlock circuit to prevent the MSEND instruction from being
executed while the MRECV instruction is being executed.
(This is because the MRECV and MSEND instructions use the random access
buffer memory area as a work area.)
Mail
Mail
Inspection) for the CPU module used
MELSEC-Q/L
One scan
6 - 11