When The Q/Lcpu Accesses The Programmable Controller Of Another Station Using The Data Link Instruction; Access To Other Stations With The Data Link Instruction - Mitsubishi Electric Melsec Q Series User Manual

4 WHEN THE Q/LCPU ACCESSES THE PROGRAMMABLE CONTROLLER
OF ANOTHER STATION USING THE DATA LINK INSTRUCTION
4 WHEN THE Q/LCPU ACCESSES THE PROGRAMMABLE CONTROLLER
OF ANOTHER STATION USING THE DATA LINK INSTRUCTION
4

4.1 Access to Other Stations with the Data Link Instruction

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With the CC-Link IE Controller Network, CC-Link IE Field Network, MELSECNET/H,
MELSECNET/10 relay communication function, the Q/LCPU can perform data
communication with the programmable controller CPUs of other stations as follows
using the data link instructions.
• Programmable controller CPUs of other stations on the same Ethernet network
system
• Programmable controller CPUs on other Ethernet networks accessed via routers
(using the router relay function)
• Programmable controller CPUs on other Ethernet networks or other networks
accessed via a network module (using the CC-Link IE Controller Network, CC-Link
IE Field Network, MELSECNET/H, MELSECNET/10 relay communication function)
This chapter describes how to use data link instructions for data communications
between a Q/LCPU in the local station and a programmable controller CPU in another
station using an Ethernet module via Ethernet or a network module.
POINT
When accessing other stations using data link instructions via Ethernet module, set
the parameters shown in Chapter 3.
The data link instruction is an instruction for a Q/LCPU to send/receive data, read/write
data from/to the word device memory, and access other stations (such as remote
RUN/STOP) with a Q/LCPU in other stations connected to other networks or Ethernet.
If the initial processing of the local station, relay station, and access station's Ethernet
module is finished correctly, it will be possible to access other stations by the data link
instruction.
(Local station)
Ethernet
CPU
module
Ethernet
Accessing
Router
another
station
Ethernet
(Another station)
Ethernet
CPU
module
(Another station)
Accessing another station
CPU
(Another station)
Network Ethernet
CPU
module module
CC-Link IE Controller Network,
CC-Link IE Field Network, MELSECNET/H,
MELSECNET/10
Accessing another station
MELSEC-Q/L
Ethernet
module
(Another station)
Network
CPU
module
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