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108
Sec
tion
5
How to Use Command
L
in
k
Un
it
V7
00-
L1
2
V500-R521B2/C2
User’s Manual
Section 5
Example of System Configuration
Connection with upper equipment
When connected with RS-232C
How to deal in case when RS signal control on the upper
equipment is impossible
Connect the upper equipment to the RS-485 communication line using K3SC-10, which
makes communication switching control using RS signal unnecessary.
When connecting with 1:N using the link unit, it is required to input the RS signal normally
controlled by the upper equipment to the CS signal. Turn OFF the RS signal within 15 ms after
data transmission is finished. This control should be performed for normal operation.
㧙
㧙
㧙
㧙
㧙
㧙
㧙
Upper equipment
RS-232C
24 V power
source
24 V power
source
24 V power
source
24 V power
source
Bar code
reader
Bar code
reader
Bar code
reader
Bar code
reader
DIP-SW 1 to 5: Set to machine No. 1
DIP-SW10:
With termination
resistance (ON)
Set to machine No. 2
No termination
resistance (OFF)
Set to machine No. 3
No termination
resistance (OFF)
Set to machine No. 4
With termination
resistance (ON)
Total length: Max. 1 km
㧙
㧙
㧙
㧙
㧙
㧙
㧙
㧙
Upper equipment
RS-232C
24 V power
source
24 V power
source
24 V power
source
24 V power
source
Bar code
reader
Bar code
reader
Bar code
reader
Bar code
reader
DIP-SW 1 to 5: Set to machine No. 1
DIP-SW10:
No termination
resistance (OFF)
Set to machine No. 2
No termination
resistance (OFF)
Set to machine No. 3
No termination
resistance (OFF)
Set to machine No. 4
With termination
resistance (ON)
Total length: Max. 1 km
RS-485
V500-R521.book 108 ページ 2008年7月18日 金曜日 午後1時1分