Serial Interface
Precautions for Connecting Serial Interface
The serial interface is not isolated. The SG (signal ground) and FG (frame ground) terminals are connected inside the product. When the serial interface connector is D-Sub, connect the FG wire to the shell.
DANGER |
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ELECTRIC SHOCK AND FIRE
Failure to follow these instructions will result in death or serious injury.
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CAUTION |
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LOSS OF COMMUNICATION
Failure to follow these instructions can result in injury or equipment damage.
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RS-232C (COM1)
D-Sub 9 pin plug connector
|
Pin No. |
RS-232C |
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|---|---|---|---|
|
Signal name |
Direction |
Meaning |
|
|
1 |
CD |
Input |
Carrier detect |
|
2 |
RD (RXD) |
Input |
Receive data |
|
3 |
SD (TXD) |
Output |
Send data |
|
4 |
ER (DTR) |
Output |
Data terminal ready |
|
5 |
SG |
– |
Signal ground |
|
6 |
DR (DSR) |
Input |
Data set ready |
|
7 |
RS (RTS) |
Output |
Request to send |
|
8 |
CS (CTS) |
Input |
Send possible |
|
9 |
VCC |
Output |
+5 Vdc ±5% Output 0.25 A*1 |
|
Shell |
FG |
– |
Frame ground (common with SG) |
*1 When using RS-232C pin #9, enable VCC with the software.
Recommended jack screw is #4-40 (UNC).
Recommendations:
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Cable Connector: XM3D-0921 manufactured by OMRON Corporation.
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Cable Cover: XM2S-0913 manufactured by OMRON Corporation.
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Jack Screw (#4-40 UNC): XM2Z-0073 manufactured by OMRON Corporation.
RS-422/485 (COM2)
D-Sub 9 pin plug connector
|
Pin No. |
RS-422/RS-485 |
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|---|---|---|---|
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Signal name |
Direction |
Meaning |
|
|
1 |
RDA |
Input |
Receive data A (+) |
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2 |
RDB |
Input |
Receive data B (-) |
|
3 |
SDA |
Output |
Send data A (+) |
|
4 |
ERA |
Output |
Data terminal ready A (+) |
|
5 |
SG |
– |
Signal ground |
|
6 |
CSB |
Input |
Send possible B (-) |
|
7 |
SDB |
Output |
Send data B (-) |
|
8 |
CSA |
Input |
Send possible A (+) |
|
9 |
ERB |
Output |
Data terminal ready B (-) |
|
Shell |
FG |
– |
Frame ground (common with SG) |
Recommended jack screw is #4-40 (UNC).
Recommendations:
-
Cable Connector: XM3D-0921 manufactured by OMRON Corporation.
-
Cable Cover: XM2S-0913 manufactured by OMRON Corporation.
-
Jack Screw (#4-40 UNC): XM2Z-0073 manufactured by OMRON Corporation.
DANGER
CAUTION