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5. PARAMETERS
5.7 (N) Communication operation parameters
Wiring and configuration of PU connector communication system
• System configuration
• Wiring between a computer and a converter for RS-485 communication
*1
Make connection in accordance with the Instruction Manual of the computer to be used with. Fully check the terminal numbers of the computer
since they vary with the model.
NOTE
• When performing RS-485 communication with multiple converter units, use the RS-485 terminals. (Refer to
• Connection cable between the computer and the converter unit
Refer to the following for the connection cable (RS-232C to RS-485 converter) between the computer with an RS-232C
interface and a converter unit. Commercially available products (as of February 2019)
*2
The conversion cable cannot connect multiple converter units. (The computer and a converter unit are connected in a 1:1 pair.) This is an
RS232C-to-RS485 converter-embedded conversion cable. No additional cable or connector is required. For the product details, contact
the manufacturer.
• Refer to the following table when fabricating the cable on the user side.
Commercially available products (as of February 2015)
*3
Do not use pins No. 2 and 8 of the communication cable.
Model
Manufacturer
Interface embedded cable
DAFXIH-CAB (D-SUB25P for personal computer)
DAFXIH-CABV (D-SUB9P for personal computer)
+
Connector conversion cable DINV-485CAB (for converter unit)
Diatrend Corp.
Interface embedded cable for converter unit
DINV-CABV
PU
connector
Station 0
Station 0
Computer
RS-485
interface/
terminals
Communication cable
RJ-45
connector
PU
connector
Converter
unit
Converter
unit
Converter
unit
FR-DU08
Communication cable
RJ-45 connector
RJ-45 connector
Operation
panel
connector
FR-ADP
(option)
PU
connector
Computer
Communication cable
RJ-45
connector
RS-232C
connector
RS-232C-RS-485
converter
RS-232C
cable
Maximum
15 m
Computer Side Terminals
Send data
Send data
Receive data
Receive data
Description
Frame ground
Signal ground
Clear to send
Clear to send
Request to send
Request to send
SDB
SDA
RDB
RDA
Signal name
FG
SG
CSB
CSA
RSB
RSA
RDB
RDA
SDB
SDA
PU connector
SG
Converter unit
∗1
0.2 mm
2
or more
Cable connection and signal direction
Communication cable
Name
Model
Manufacturer
Communication cable
SGLPEV-T (Cat5e/300 m) 24AWG × 4P
Mitsubishi Cable Industries, Ltd.
RJ-45 connector
5-554720-3
Tyco Electronics