Rs-232C Interface Connections - Omron V600 Operation Manual

RS-232C Interface Connections

Noise Countermeasures
for External Wiring
3-3

RS-232C Interface Connections

20
Surge Killers
Resistance: 50 Ω
Capacitance: 0.47 µF
Voltage:
Diodes
Inrush withstand voltage: 3 times load voltage min.
Average rectified current: 1 A
Consider the following items when wiring external lines, such as the R/W
Head cables, I/O lines, power supply lines, and high-power lines.
• When using multiconductor cables for signal lines, do not use the same
cable for both I/O lines and other control lines.
• When racks are installed in parallel with each other, keep them separated
by at least 300 mm.
R/W Head cables and
I/O lines
ID Controller power supply
lines and general control
circuit lines
Power lines
• When placing cables in the same duct, separate them with grounded iron
plates.
ID Controller power supply
lines and general
control circuit lines
I/O lines
Ground to 100 Ω or less.
Signal name
Safety ground or earth ground
Signal ground or common return
line
Send data
Receive data
Request to send
Can send
5 V
200 V
Low-power cables
Control cables
High-power cables
Ground to 100 Ω or less.
Iron plate
Power lines
Symbol Signal direction
Input
GR ---
SG ---
SD ---
❍
RD
RS ---
❍
CS
5V ---
Section 3-3
300 mm min.
300 mm min.
200 mm min.
Pin No.
Output
--- 1
--- 9
❍
2
--- 3
❍
4
--- 5
❍
6