Mitsubishi Electric Melsec WS Series User Manual page 114

MELSEC-WS
C0
C1
C2
C10
C11
C12
C20
C21
C22
C31
C32
C33
C40
C41
C42
Table 38:
Data to be sent at
reading
111
SOCOPEN instruction
SOCSND instruction
SOCRCV instruction
Verification check
SOCCLOSE instruction
*1 C device is used to check the operation of the communication program.
For details of data transmission and reception processing in a program for reading
input data sets in polling mode, refer to Section 8.2.2 (2).
Please replace the BUFSND and BUFRCV instructions with the SOCSND and
SOCRCV instructions.
Since the Built-in Ethernet port QCPU treats application data in Little Endian format,
the byte-order needs to be swapped. Note that the byte order of the input data set 1
and output data set 1 does not need to be changed because these data are one
byte long.
<Data need to be swapped>

Command and parameters (word data (16 bits))

Input data set 2 and 3 (double-word data (32 bits))
The following table lists data to be sent at reading.
Configuration
Device
value (hex)
D700 000A
H
D701 00F1
H
D702 0001
H
D703 0001
H
D704 0001
H
D705 0000
H
*1 Since the QJ71E71-100 treats application data in Little Endian format, the byte-order needs to be
swapped.
Procedures before operation
C device *1
Number of executions
Number of successes
Number of failures
Number of executions
Number of successes
Number of failures
Number of executions
Number of successes
Number of failures
Number of successes
Number of failures
Number of response errors (writing)
Number of executions
Number of successes
Number of failures
Byte
*1
swapping
Not required
Required
Description
Send data length (10 bytes)
Command
Read data specification (Input data set
1 reading)
Read data specification (Input data set
2 reading)
Read data specification (Input data set
3 reading)
Read data specification (Input data set
4 not reading)