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4. Operation Method
RS485 Communication Function
1. Settings Relating to Communication
1.1 Communication Settings
Before starting communication with the VS3 controller (hereinafter called the "unit"), set
communication parameters on the personal computer.
Item
Communication setting
1
Data length
8 bits
2
Stop bit length
2 bits
3
Parity
Disabled
4
BCC check
Enabled
5
Baud rate
4800BPS
6
Response delay time
0msec
1.2 Communication Connections
■
Personal computer
・
Use channel 1 (COM1/COM2 port) of the RS232C interface or USB port.
■
RS232C/RS485 converter
・
For the converter, System Sacom's KS-485 is recommended.
・
Our optional accessory "external communication adapter (RS485-232C) ODK18" or "external
communication adapter (RS485-USB) OIL24" permits the connections described in Note 1)
below (except the personal computer).
■
Communication cable for connection
PC
VS3 controller
CN3-3,4
RS232C/RS485 converter
KS-485
Cable 2
Cable 1
AC adapter
COM1/COM2
VS3 built-in device
Note 1)
The optional accessory "external communication adapter (RS485-232C) ODK18" comprises the
following:
①
Communication cable 1: One-meter-long RS-232C cable with a connector (for IBM nine-pin
appliance connection) to the personal computer and System Sacom's CBL16 connector (Dsub
25-pin male) to the KS-485
②
Communication cable 2: Three-meter-long UL2464TASB two-core AWG20 cable with a
connector (Dsub nine-pin male) to the KDS-485 and a Y-terminal (with a 100W terminating
resistor) to the unit
③
RS-232C <=> KS-485 conversion unit: System Sacom's KS-485 with an AC adapter
Main body
