Serial Interface (RS-232C and RS-422/RS-485) for COM1/COM2
NOTE: For information on how to connect controllers and other types of equipment, refer to the corresponding device driver manual of your screen editing software.
You can switch the communication method between RS-232C and RS-422/RS-485 via the software.
The serial interface is not isolated. The SG (signal ground) and FG (functional ground) terminals are connected inside this product. When the serial interface connector is D-Sub, connect the FG wire to the shell.
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ELECTRIC SHOCK AND FIRE |
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When using the SG terminal to connect an external device to this product: oVerify that a ground loop is not created when you set up the system. oConnect the SG terminal to remote equipment when the external device is not isolated. oConnect the SG terminal to a known reliable ground connection to reduce the risk of damaging the circuit. |
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Failure to follow these instructions will result in death or serious injury. |
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LOSS OF COMMUNICATION |
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oDo not put excessive stress on the communication ports of all connections. oSecurely attach communication cables to the panel wall or cabinet. oUse a D-Sub 9 pin connector that has jack screws. |
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Failure to follow these instructions can result in injury or equipment damage. |
NOTE: Use within the rated current.
D-Sub 9 pin plug connector
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Product side |
Pin No. |
RS-232C |
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Signal name |
Direction |
Meaning |
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1 |
CD |
Input |
Carrier Detect |
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2 |
RD (RXD) |
Input |
Receive Data |
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3 |
SD (TXD) |
Output |
Send Data |
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4 |
ER (DTR) |
Output |
Data Terminal Ready |
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5 |
SG |
– |
Signal Ground |
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6 |
DR (DSR) |
Input |
Data Set Ready |
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7 |
RS (RTS) |
Output |
Request to Send |
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8 |
CS (CTS) |
Input |
Send possible |
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9 |
CI (RI)/VCC |
Input/– |
Called Status Display +5 Vdc ±5% Output 0.25 A*1 |
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Shell |
FG |
– |
Functional Ground (Common with SG) |
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*1 You can switch pin #9 between CI (RI) and VCC via the software. The VCC output is not protected against overcurrent. To prevent damage or malfunction, use only within the rated current.
Interfit bracket is #4-40 (UNC).
Recommendations:
oCable Connector: XM3D-0921 manufactured by OMRON Corporation.
oCable Cover: XM2S-0913 manufactured by OMRON Corporation.
oJack Screw (#4-40 UNC): XM2Z-0073 manufactured by OMRON Corporation.
D-Sub 9 pin plug connector
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Product side |
Pin No. |
RS-422/RS-485 |
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|---|---|---|---|---|
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Signal name |
Direction |
Meaning |
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1 |
RDA |
Input |
Receive Data A (+) |
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2 |
RDB |
Input |
Receive Data B (-) |
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3 |
SDA |
Output |
Send Data A (+) |
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4 |
ERA |
Output |
Data Terminal Ready A (+) |
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5 |
SG |
– |
Signal Ground |
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6 |
CSB |
Input |
Send Possible B (-) |
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7 |
SDB |
Output |
Send Data B (-) |
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8 |
CSA |
Input |
Send possible A (+) |
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9 |
ERB |
Output |
Data Terminal Ready B (-) |
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Shell |
FG |
– |
Functional Ground (Common with SG) |
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Interfit bracket is #4-40 (UNC).
Recommendations:
oCable Connector: XM3D-0921 manufactured by OMRON Corporation.
oCable Cover: XM2S-0913 manufactured by OMRON Corporation.
oJack Screw (#4-40 UNC): XM2Z-0073 manufactured by OMRON Corporation.
