Hardware manual

2 Mitsubishi
2-63
Chap.2
2.4 Environment Settings
2.4.1 MELSEC-A Series: Settings for the Computer Link Unit and CPU Unit Link
I/F
Setting
Item
RS-232C RS-485
Format 4 protocol mode
Transmission Control Protocol
Set the mode setting switch
to 4.
Set the mode setting switch
to 8.
Station Number Set using the Station Number setting switch.
Data Bits
7 or 8
(set using the Transmission Specifications setting switch)
Baud Rate
1200, 2400, 4800, 9600 or 19200 bps
(set using the Transmission Specifications setting switch)
Parity
None, Even or Odd
(set using the Transmission Specifications setting switch)
Stop Bits
Use the same
settings as for
the MICRO/I.
1 or 2
(set using the Transmission Specifications setting switch)
Checksum
Yes
(set using the Transmission Specifications setting switch)
Write During RUN
Possible
(set using the Transmission Specifications setting switch)
Transmission Side Termination
Resistor
No
Yes
(set using the Transmission
Specifications setting switch)
Receive Side Termination Resistor No
Yes
(set using the Transmission
Specifications setting switch)
Computer Link/Multi Drop Selection
Computer Link
(set using the Transmission Specifications setting switch)
Note: Only set if this item is present.
Refer to the Link Unit manual for details.