Mitsubishi MELSEC-A series, Programming Manual

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7. APPLICATION INSTRUCTIONS
7
−
94
MELSEC-A
LWTP
(1) Stores the data of "n2" points, which begin with the device specified at (S) of
master station, to devices, which begin with the device specified at (D) , of local
station specified at "n1".
(2) When the LWTP instruction is being executed, M9202 of the master station
turns ON. When the execution is completed, M9203 of the master station turns
ON.
Since M9202 and M9203 remain ON after the completion of execution, turn
them OFF by the sequence program.
(3) It is impossible to execute 2 or more LWTP instructions simultaneously or to
execute the LRDP instruction and the LWTP instruction simultaneously to one
local station.
POINT
Provide interlock using M9200, M9201, M9202, and M9203 so that the LRDP
instruction and/or the LWTP instruction may not be executed during the data
read from local stations by the LWTP instruction.
(4) Values of D9201 of the master station indicate the execution result of the LWTP
instruction as mentioned below.
D9200 value Execution result
0 Completed correctly
2
Device setting error (Operation error)
•
Devices specified at (S) or (D) exceed the device range of the master or local
stations.
•
n1 value is other than 1 to 64.
•
n2 value is other than 1 to 32.
3 Specified local station is not connected in the data link.
4 Specified station number is not of the local station. (Operation error)
(5) If the LWTP instruction is executed with a local station, operation error occurs.
Master station
Device specified at (S)
Local station No. n1
Device specified at (D)
n2 points
Transfer
n2 points
Write
command M9200 M9201 M9202 M9203
K K
LWTP 3 D3 D99 6