8-9
8.3.3 When Connected to a FP Series PLC
Error codes which are sent from the PLC are listed in the table below. For details, refer to the separate
[FP3/FP5 C.C.U. Technical Manual].
Code No. Content Cause and solution
21
Data error
A data error
occurred during
communication.
1) There is an error in the communication condition settings. Check
the PLC and GT main unit baud rate and transfer format.
2) There is a temporary error due to noise, etc. Re-supply power to
the PLC and GT main unit.
22
Overrun error
The PLC isn’t
receiving data.
The CPU unit’s reception buffer is overflowing.
There could be an error in the PLC.
Re-supply power to the PLC and GT main unit.
40
BCC error
A data error
occurred during
communication.
1) There is a temporary error due to noise, etc.
Re-supply power to the PLC and GT main unit.
2) There is an error in the CPU unit. Re-supply power to the PLC
and GT main unit.
41
Format error
The PLC has been
sent a command
that doesn’t match
the protocol.
1) There is a temporary error due to noise, etc.
Re-supply power to the PLC and GT main unit.
2) There is an error in the CPU unit. Re-supply power to the PLC
and GT main unit.
42
NOT support error
The GT has sent a
non-supported
command to the
PLC.
1) There is a temporary error due to noise, etc.
Re-supply power to the PLC and GT main unit.
2) There is an error in the CPU unit. Re-supply power to the PLC
and GT main unit.
53
BUSY error
The PLC is
currently
processing another
command.
A large amount of data is being communicated with another
RS232C port on the PLC.
Wait until the error is gone.
61
Data run error
There is an error in
the register or
relay number.
A register or relay number which doesn’t exist in the PLC was
specified during screen creation using GTWIN.
Correct the output device being used with the part, or the transfer
of clock data to an external device.