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MELSEC-Q
8 DATA COMMUNICATION USING THE PRE-DEFINED PROTOCOL
(2) Communication
data
In the program example, the predefined protocol communication described below
is performed between QJ71C24N and the target device.
(a) Target device and protocols
Connect the QJ71C24N and the inverter and read out the operation mode
values of the inverter.
Set the inverter station number to CPU device (D300) and send it, and store
the operation mode value in CPU device (D201).
Manufacturer Mitsubishi
Electric
Device name
FR-A700
Protocol name
H7B:RD Operation Mode
(b) Storage devices for send/receive data, buffer memory assignment
Specify the device memory of a CPU module and buffer memory as the data
storage areas as listed in the table below, and send/receive data.
Packet name
Element name
Packet type
Data storage area
specification
H7B:RD Operation Mode
Inverter Station Number
Send packet
D300
NOR:RD Data(4 Digits Data)
Inverter Station Number
Receive packet
D200
Read Data
D201
ERR:NAK Response
Inverter Station Number
Receive packet
D202
Error Code
D203
Summary of Contents for GX Configurator-SC
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Page 103: ...3 42 3 42 MELSEC Q 3 SPECIFICATIONS MEMO ...
Page 138: ...4 35 4 35 MELSEC Q 4 SETTINGS AND PROCEDURES PRIOR TO OPERATION MEMO ...
Page 397: ...App 24 App 24 MELSEC Q APPENDICES Connection example 3 Connection example 4 ...
Page 439: ...WARRANTY ...
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