9
V700-L11
User's Manual
Section 1
1.
2 Syst
em con
figur
ati
o
n
Section 1
System Features and Configuration
1.2 System configuration
By combining an IDRW head and a link unit, various system configurations (connection configuration, supply
voltage).
Interfacing with upstream controller: RS-232C
Unit-to-unit configuration
IDRW head/link unit connection configuration
• 1:1 connection (RS-232C)
• 5 VDC power supply
• 1:1 connection (RS-232C)
• 24 VDC power supply
• 1:N connection (RS-232C)
• 24 VDC power supply
Precautions for trouble-free operation
For a 1:N connection involving a link unit, it is necessary to add an normal controlled RS signal from an
upstream controller to a CS signal. The RS signal must be turned OFF within 15 msec after completion of
data transmission. Otherwise, this configuration does not operate correctly.
(For details, refer to Sec. 2.3.2 Interface specifications.)
5 VDC
Upstream
controller
ID tag
IDRW head
RS-232C
24 VDC
RS-232C
Link unit
Upstream
controller
ID tag
IDRW head
24 VDC
24 VDC
24 VDC
Upstream
controller
ID tag
ID tag
ID tag
IDRW head
IDRW head
IDRW head
RS-232C
RS-485
RS-485
Link unit
Link unit
Link unit
Max. 31 units