Mitsubishi Electric F920GOT-BBD-K-E, Hardware Manual, Page: 566 / 592

GOT-F900 SERIES (CONNECTION) Connection of Bar Code Reader 22
22-12
22.6 Cable Diagram
This section explains a cable diagram to connect the GOT-F900 and the bar code reader.
1) Cable for the GOT and the bar code reader
22.7 Troubleshooting
For reference, this section summarizes frequently asked questions about connection of the GOT-F900 to
the FX Series PLC.
Contents of trouble Check points and countermeasures
The data is not written
to the PLC normally.
The data is not written to the PLC.
• Cause
1)The communication specifications are not satisfied.
2)Wrong wiring.
3)Either signal, the bar code input signal, the bar code input invalid signal or the bar code
input read completed signal, assigned to the device (system information/control device)
is ON.
• Countermeasures
1)Check the specification of the bar code reader.
2)Check the wiring between the GOT and the bar code reader.
3)Change the bar code input read completed signal to ON in the PLC, the GOT sets to
OFF the bar code input signal.
The data is partially written to the PLC
(After receiving the end code (CR: 0DH) from the bar code reader, the GOT writes data to
the PLC. Accordingly, it does not usually occur that data is partially written.)
• Cause
1)The number of devices may be small.
2)The bar code reader specifications are not satisfied.
3)The data may be interrupted while being transferred.
• Countermeasures
1)Check the setting of the bar code in the screen creation software.
2)Check the bar code reader specifications.
3)Check whether there is imperfect contact in such places as a connector.
No. Model name Application Connection diagram Application
Prepared by the user a)
Bar code reader
The connector figure shows the engagement face.
: Female type : Male type
RS-232C
connection
GOT-F900
9-pin D-Sub, female
5 1
9 6
(2)
(3)
(5)
(4)
(6)
(8)
Signal name on bar
code reader side
RD(RXD)
SD(TXD)
DR(DSR)
CS(CTS)
SG(GND)
ER(DTR)