Precautions - Mitsubishi Electric GT1685 Connection Manual

12.5 Precautions


GOT startup in CC-Link IE Field Network
connection
For the CC-Link IE Field Network connection, the data
link is started approximately 15 seconds after the GOT
startup.

When a network error occurs in the system
alarm
In the CC-Link IE Field Network connection, when a
network error occurs in the system alarm, the system
alarm display cannot be canceled even though the
causes are removed.
To cancel the system alarm display, restart the GOT.

CC-Link IE Field Network module version
For version restrictions of the CC-Link IE Field Network
module, refer to the following manual.
CC-Link IE Field Network Master/Local Module
User's Manual

Connection to Q170MCPU
The Motion CPU area (CPU No.2) cannot be
monitored.
Set the CPU No. to "0" or "1".
The device of the PLC CPU area (CPU No.1) is
monitored.
For setting the CPU No., refer to the following manual.
GT Designer3 Version
Manual
Example) Setting dialog box of the bit device
Screen Design
12. CC-Link IE FIELD NETWORK CONNECTION

Data link failure in other stations at GOT
startup
At GOT startup, the data link failure may occur in other
stations.
However, after the failure occurrence, the GOT
reconnects automatically and monitors the devices
properly.
To avoid such data link failure, start up the GOT 10
seconds earlier than the master station.
However, if the master station does not complete
startup when GOT starts monitoring (10 seconds after
the GOT startup), the communication timeout occurs in
the GOT side.
For details, refer to the following manual.
CC-Link IE Field Network Master/Local Module
User's Manual

Data link failure in all stations at GOT startup
or cable connection/disconnection
At GOT startup, the communication is broken
temporarily between PORT1 and PORT2 in the CC-
Link IE Field module which is installed on the GOT.
Thus, as the GOT or a station between the GOT and
the master station is reconnected, the data link failure
may occur on all stations.
POINT POINT POINT
GOT startup
GOT startup indicates the startups after the following
operations:
• Turning ON the GOT
• Resetting the GOT main unit
• Operating the utility
• Downloading the project including the
communication settings
• Downloading the OS

When the output is required to be held at the
data link failure
Set the GOT to hold the input from the data link faulty
stations in the communication setting. Set "Input for
Error Station" to "Hold".
12.3.2 Communication detail settings

Connection to RnSFCPU
The RnSFCPU takes 10 seconds or more to run.
If the GOT is started before the RnSFCPU runs, a
system alarm occurs.
To prevent a system alarm from occurring, adjust the
title display time in the [GOT Setup] dialog.
GT Designer3 (GOT2000) Help
12.5 Precautions
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