3-11
3 Connecting to Mitsubishi PLCs
NB-series Programmable Terminals Host Connection Manual (V108)
3-3 Communication Setting
3
3-3-2 When Using Mitsubishi FX-485ADP/485BD/232BD (Multi-station) Communication Protocols
(2) FX3U/3UC Series PLC
Check the [Operate communication setting] option.
Note 1 The [CH1] should be selected for FX3U/3UC Series PLC.
2 Set the parameters as follows.
[Dedicated Protocol] is selected for Protocol, [Sum Check] is checked, and [Form4] is
selected for the Transmission Control Sequence.
3 Set the [H/W Type] as follows.
“Regular/RS-232C” is selected when FX-232-BD communications is used or “RS-485” is
selected when FX-485-BD/FX-485-ADP communications is used.
Aside from using [FX Parameter], the user can use the special data register D8120 in PLC
to set the communication parameters for PLC.
• For example:
If the PLC communication parameters are: 9600bps (Baud Rate), 7 (Data Bit), even (Parity
Check), 2 (Stop Bit), 1(PLC Station No.), RS485 (Communication Method) and 1 (PLC Communi-
cation Time Out), then D8120=0xE08E,
D8121=1,
and D8129=1.
Note The settings will be valid when the PLC is restarted after the D8120 setting is modified.
Special Data Registers Descriptions
D8120 Communication format
D8121 Station No. setting
D8129 Data network out-time counting
Applicable to FX3U/3UC and other FX Series PLCs using CH1
To Next Page
Loading...
Need help?
General
