Melsecnet/H And Melsecnet/10 Connections (Network Systems) - Mitsubishi Electric GOT2000 Series Connection Manual

4.2.5

MELSECNET/H and MELSECNET/10 Connections (Network Systems)

This section explains the MELSECNET/H and MELSECNET/10 connections (network systems) that connect the GOT to the
MELSECNET/H and MELSECNET/10 network system.
The following provides an example of connecting the GOT set as a normal station to the MELSECNET/ H network system.
Network No. 1, Station No. 1
(Control station)
Monitor target
Control
system
(System A)
■1. Connection method
Connect the MELSECNET/H network system to the GOT.
For details, refer to the following.
➠
■2. GT Designer3 setting
Set GT Designer3 as follows.
Setting item
Controller Type
Device setting (Network setting)
MELSEC Redundant Setting
■3. Monitoring target change when system switching occurs in a redundant system
When system switching occurs, the network module station No. 2 changes from the normal station to the sub control
station and takes over the control of the MELSECNET/H network system.
Since the GOT monitors the control system, the monitoring target is automatically changed to the network module
station No. 2.
4 - 68
4.2 MELSEC Q Series
GOT
MELSECNET/H remote I/O network
9. MELSECNET/H CONNECTION (PLC TO PLC NETWORK), MELSECNET/10 CONNECTION
(PLC TO PLC NETWORK)
MELSEC-QnA, MELDAS C6*
Other
➠
4.3 MELSEC Redundant Setting
POINT POINT POINT
To monitor the control system without MELSEC redundant setting
When system switching occurs, the network module station No. 2 changes from the normal
station to the sub control station and takes over the control of the MELSECNET/H network
system.
Since the GOT monitors the station of the specified station number, the monitoring target cannot
be changed to the station No. 2 in response to the system switching.
As a countermeasure, create a screen to monitor the PLC CPU of the control system by
switching the station numbers between System A and System B using the script function.
➠
4.2.9Switch the Monitor Target to the Control System Using the Script Function
Network No. 1, Station No. 3 (Normal station)
MELSECNET/H PLC to PLC network
(MELSECNET/H mode or
MELSECNET/10 mode)
Settings
NW No.: Network No. of MELSECNET/H PLC to PLC network
Station No.: Station number of the control system
Network No. 1, Station No. 2
(Normal station)
Standby
system
(System B)
Model