4 environment settings, Environment settings, External device setup manual – IDEC High Performance Series User Manual
Page 113

95
2 Mitsubishi
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Con
nection
to a PLC
External Device Setup Manual
2.4
Environment Settings
2.4.1
MELSEC-A Series: Settings for the Computer Link Unit and CPU Unit Link I/F
Refer to the Link Unit manual for details.
2.4.2
MELSEC-A Series: Connection to the Programming Port or 2-port Adapter
When using CPU Direct for the connection, the PLC program scan time will increase when it starts communicating with the
MICRO/I. Investigate this under your actual operating conditions.
Item
Setting
Interface
RS232C
RS485
Transmission Control Protocol
Format 4 protocol mode
Set the mode setting switch to 4.
Set the mode setting switch to 8.
Station Number
*1
*1. Set a decimal number for the Station Number.
Use the same settings
as for the MICRO/I.
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
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 Specifi-
cations setting switch)
Receive Side Termination Resistor
No
Yes
(set using the Transmission Specifi-
cations setting switch)
Computer Link/Multi Drop Selection
Computer Link (set using the Transmission Specifications setting switch)
Note: Only set if this item is present.
Item
Setting
Interface
RS422
Data Bits
Use the same settings as
for the MICRO/I.
8 (fixed)
Baud Rate
9600 (fixed)
Parity
Odd (fixed)
Stop Bits
1 (fixed)