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1. PREPARATORY PROCEDURES FOR MONITORING
1.3 Option Devices for the Respective Connection
When using a MELSECNET/H communication unit, CC-Link IE Controller Network
communication unit, CC-Link IE Field Network communication unit, or CC-Link communication
unit (GT15-J61BT13)
Install a MELSECNET/H communication unit, CC-Link IE Controller Network communication unit, CC-Link IE Field
Network communication unit, or CC-Link communication unit in the 1st stage of an extension interface.
These communication units cannot be used if installed in the 2nd or higher stage.
Example: When installing a MELSECNET/H communication unit and a serial communication unit
POINTPOINTPOINT
Precautions for using a MELSECNET/H communication unit, CC-Link IE Controller Network communication unit,
CC-Link IE Field Network communication unit, CC-Link communication unit (GT15-J61BT13)
The installed stage number of communication units installed on the next stage of MELSECNET/H communication
unit, CC-Link IE Controller Network communication unit, CC-Link IE Field Network communication unit, or CC-Link
communication unit are recognized by the GOT differently depending on the extension interface position.
For communication units installed in the extension interface 2 side, even if the communication unit is physically
installed in the 2nd stage position, the GOT recognizes the position as the 1st stage.
Serial communication unit
MELSECNET/H
communication unit
MELSECNET/H
communication unit
Serial communication unit
Recognized as the 3rd stage
of extension interface 1
Recognized as the 2nd stage
of extension interface 2
Recognized as the 1st stage
of extension interface 2
Recognized as the 2nd stage
of extension interface 1
Recognized as the 1st stage
of extension interface 1
MELSECNET/H communication unit
Relay connector