Omron SYSDRIVE 3G3JV

7-36
D RS-485 (4-wire)
Communications Board
RS-422/
485
Interface
Code
Pin No.
Frame
9-pin, D-sub connector
(Cable side: Male)
3G3JV
Code
3G3JV
Code
Control
circuit termi-
nal block
(commu-
nications
terminals)
Control
circuit ter-
minal block
(commu-
nications
terminals)
B500-AL001 Link Adapter
Pin No.
Code
Code
Pin No.
shield
shield
shield
Code
Pin No.
Note Be sure to set the terminal resistance of only the Inverter at each end to ON and that of any other
Inverter to OFF. Refer to 7-1-3 Names of Parts for details.
D RS-422 (4-wire)
Communications Board
RS-422/
485
Interface
Code
Pin No.
Frame
9-pin, D-sub connector
(Cable side: Male)
3G3JV
Code
Control
circuit termi-
nal block
(commu-
nications
terminals)
shield
SDA
SDB
RDA
RDB
FG
1
2
6
8
S–
S+
R–
R+
Note Be sure to set the terminal resistance of only the Inverter at each end to ON and that of any other
Inverter to OFF. Refer to 7-1-3 Names of Parts for details.
7-10-3 Outline of Protocol Macro Function
H Protocol Macro Function
• The protocol macro function makes it possible to customize a communications protocol in order to
create a macro according to the specifications of the serial communications port of the general-pur-
pose peripheral device.
• The protocol macro function is mainly used for the following jobs.
Creation of message communications frame.
Creation of Send & Recv procedures for message communications frame.
Note This manual uses the terms “message, DSR message, and response” to express the commu-
nications data exchanged.
Communications Chapter 7