8. Connections of I/O Interface
8.3 Connecting with Scan I/O Card
117
8.3.3 Connections
(1) External power supply (DCIN)
24VDC is required for the HR347/HR357 card operation. Prepare a stabilized power supply that satisfies
the following specifications.
Output : 24VDC ± 5%
Ripple : ± 5% (P-P)
Rated output current: 2.5A
∗
The rated output current is the value when using 60mA
×
32 points for the machine output.
Prepare a power supply that satisfies the 24VDC output's total output current and control current (0.5A).
DCIN
HR357
F070 cable
24VDC
0V(RG)
Y
(2) Connecting the remote I/O communication cable (RIO3A/B)
(a) Connection of the RIO3A connector
Connect the RIO3A to the RIO1/RIO2 connector of the control unit or the RIO3 of the operation panel
I/O unit.
RIO1
R211
RIO3
HR357
A
Control unit
(b) Connection of the RIO3B connector
When the remote I/O unit is connected with a serial link, multiple units can be combined and used in a
range of eight or less total occupied stations. (Refer to the section "8.2 Connecting with Remote I/O
Unit" for details.)
HR357 occupies three stations, so the remote I/O units can be connected to the RIO3B in combinations
of 5 stations or less. Connect a terminator to the RIO3B when it is not connected to any device.
0
0
0
RIO3
HR357
B
Terminator
R-TM
Refer to appendix 2.
To the next remote I/O unit
FCUA-DX