Mitsubishi Electric F920GOT-BBD-K-E, Hardware Manual

Page: 259 / 592

GOT-F900 SERIES (CONNECTION) Connection of MELSEC-A Series PLC 9
9-29
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2) Software
Contents of trouble Check points and countermeasures
Software
such as GX
Developer
and FX/WIN
In the personal computer connected
to the GOT-F900, sequence
programs cannot be monitored or
transferred.
Communication with the sequence
software is disabled. An error
message is displayed.
A PLC, bar code reader or printer is connected.
• Causes
The RS-232C connector to which the personal computer is
connected is set to be used for another piece of equipment.
• Countermeasures
For monitoring or transferring sequence programs, set a bar
code reader to invalid and a printer to "DON'T USE".
If the PLC is connected, select the GOT-F900 equipped with
two built-in RS-232C channels.
Something is wrong with the cable between the GOT-F900
and the personal computer.
• Causes
The wrong cable is used or the connection is bad.
• Countermeasures
Check the cable.
Screen
creation
software
In the personal computer connected
to the GOT-F900, screen data cannot
be transferred.
Communication with the screen
creation software is disabled. An
error message is displayed.
A computer link, bar code reader or printer is connected.
• Causes
The RS-232C connector to which the personal computer is
connected is set to be used for another piece of equipment.
• Countermeasures
In the GOT-F900, select by hand "SELECT MODE"-"OTHER
MODE"-"DATA TRANSFER".
Or set to invalid and a printer to "DON'T USE".
A personal computer is connected, and the software for PLC
(such as GPP/W and FX/WIN) and the screen creation
software are used at the same time.
• Cause
Program transfer or monitoring is executed by the PLC
software.
• Countermeasures
Terminate program transfer or monitoring by the PLC
software. If the error status still continues, shut down the
PLC. Otherwise, shut down the personal computer, start it
up again, then start up only the screen creation software.
Something is wrong with the cable between the GOT-F900
and the personal computer.
• Causes
The connected cable is not proper. Or cable connection is
not correct.
• Countermeasures
Check the cable.