Mitsubishi Electric Melsec WS Series User Manual page 131

Procedures before operation
W0 to W18
W20 to W2F
W30 to W4D
M500 Receive execution
M501 BUFRCV instruction success device
M502 BUFRCV instruction failure device
M510 BUFRCV instruction normal completion
M511 BUFRCV instruction abnormal completion
Response command verification normal
M520
completion
M521 Data size error device
M1000 to
Device area used for byte swapping
M1023
C20
C21
C22
C31
C32
(b) Configuration required for the QJ71E71-100
Configuration examples of network parameters required for communications in
auto update mode are shown below. Configure these parameters using a
programming tool.
1) Configuring network parameters
Refer to Section 8.2.2 (1).
2) Network parameter – Operational settings
Refer to Section 8.2.4 (1).
3) Network parameter – Open settings
Refer to Section 8.2.4 (1).
4) Network parameter – Initial settings
Refer to Section 8.2.4 (1).
(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
The following tables list devices used in the sample program.
Table 48: Devices used in the sample program
Input data set 1 storage area
Input data set 2 storage area
Input data set 3 storage area
M device
BUFRCV instruction
Verification check
*1 C device is used to check the operation of the communication program.
W device
D2
D500 and
D501
D520
D900 to D976
X0
X10
X19
*1
C device
Number of executions
Number of successes
Number of failures
Number of successes
Number of failures
D device
BUFRCV instruction failure error code
BUFRCV instruction control data
Response command check device
BUFRCV instruction receive data area
X device
Fixed buffer reception status signal
Open complete signal
Initial processing normal completion signal
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