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5
FUNCTIONS
5.2.2 Dedicated instructions
5 - 9
Reading/writing or other operations on MODBUS device data performed by sequence
program at any timing.
POINT
30001 is used for the port number on the QJ71MT91 side.
Dedicated instruction list
The list of the dedicated instructions supported by the QJ71MT91 is indicated
below.
Dedicated
Instruction
Issues a MODBUS device read/write request message to
MBRW
the slave.
Communicates with the slave in the request message
MBREQ
format of any PDU (protocol data unit).
Description
MELSEC-Q
Reference
Section 10.2
Section 10.3
5 - 9
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