Mitsubishi Electric Melsec WS Series, User Manual

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MELSEC-WS
Procedures before operation
121
(2) Sample program
This manual describes only devices used in sample programs and details of the
processing.
For the acquisition of sample programs, please contact your local Mitsubishi
representative.
1) Device assignment [for reading/writing]
The following tables list devices used in the sample program.
Table 44: Devices used in the sample programs
W device
W0 to W18 Input data set 1 storage area
W20 to W2F Input data set 2 storage area
W30 to W4D Input data set 3 storage area
M device D device
M300 Open execution D0 OPEN instruction abnormal completion
error code
M301 OPEN instruction success device
M302 OPEN instruction failure device D1 BUFSND instruction abnormal
completion error code
M310 OPEN instruction normal completion
M311 OPEN instruction abnormal completion D2 BUFRCV instruction abnormal
completion error code
M400 Send execution
M401 BUFSND instruction success device D3 CLOSE instruction abnormal
completion error code
M402 BUFSND instruction failure device
M410 BUFSND instruction normal completion D300 to D309 OPEN instruction control data
M411 BUFSND instruction abnormal completion D400 and
D401 BUFSND instruction control data
D500 and
D501 BUFRCV instruction control data
M420 Command in execution D520 Response command check device
(reading)
M500 Receive execution D521 Response command check device
(writing)
M501 BUFRCV instruction success device D600 and
D601 CLOSE instruction control data
M502 BUFRCV instruction failure device D700 to D705 BUFSND instruction send data area
(reading)
M510 BUFRCV instruction normal completion D800 to D831 BUFSND instruction send data area
(writing)
M511 BUFRCV instruction abnormal completion D900 to D976 BUFRCV instruction receive data area
(reading and writing)
M520
Response command verification normal
completion
X device
M521
Data size error device X0 Fixed buffer reception status signal
M601
CLOSE instruction success device X10 Open complete signal
M602
CLOSE instruction failure device X19 Initial processing normal completion
signal
M610
CLOSE instruction normal completion - -
M611
CLOSE instruction abnormal completion - -
M1000 to
M1023 Device area used for byte swapping - -
M2000
OPEN execution (1PLS) - -
M2001
OPEN request signal - -