Mitsubishi Electric Melsec WS Series, User Manual

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Connecting to MELSEC programmable controllers
MELSEC-WS
64
This chapter describes how to exchange non-safety related data (input/output data)
between the MELSEC-WS safety controller and MELSEC programmable controllers
via TCP/IP.
In this or later chapters, each Ethernet interface module in a MELSEC-WS safety
controller system and MELSEC programmable controller system is referred to as
follows:

Ethernet interface module in a MELSEC-WS safety controller system → WS0-
GETH
 MELSEC QJ71E71-100 Ethernet interface module in a MELSEC programmable
controller system
→ QJ71E71-100
7.1 Features achieved by the connection
MELSEC programmable controllers can acquire MELSEC-WS safety controller
information over Ethernet.
The QJ71E71-100 connected to a MELSEC programmable controller or the Built-in
Ethernet port QCPU can read MESLEC-WS safety controller information (e.g.
operation results of the CPU module, safety input/output data) over Ethernet.
Two communication modes are available: polling mode and auto update mode.
Figure 27: Acquiring MELSEC-WS safety controller information
7. Connecting to MELSEC programmable controllers