92
Sec
tion
5
Ex
ample of
M
ulti-d
rop Conne
ct
ion
V500-R521B2/C2
User’s Manual
Section 5
Example of System Configuration
Example of Multi-drop Connection
When communication link unit V700-L12 (sold separately) is used, you can connect max. 31
sets of the bar code reader to one upper equipment. This is called multi-drop connection.
Connection configuration differs according to the interface (RS-485 or RS-232C) of the upper
equipment side.
Example of connecting communication link unit (hereinafter referred to as "link unit") and the
upper equipment using RS-485 is described in this section.
You can supply 5 V power to the bar code reader from V700-L12.
Communication converter
K3SC
PC/AT compatible PC
Upper equipment
Communication link unit
V700-L12
Machine
No.
01
Machine
No.
02
Machine
No.
03
Bar code reader
V500-R521C2
Special cable
V509-W019
External trigger
Input terminal
Power supply
24 VDC
S8VS-03024
RS-485
RS-232C
RS-485
RS-485
V500-R521.book 92 ページ 2008年7月18日 金曜日 午後1時1分