STM6000-MM01-EN_03

Serial Interface

The serial interface is not isolated. The SG (signal ground) and FG (frame ground) terminals are connected inside this product. When using a D-Sub serial interface connector, connect the FG wire to the shell.

You can switch the communication method between RS-232C and RS-422/ RS-485 via the software.

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.
DANGER
ELECTRIC SHOCK AND FIRE
When using the SG terminal to connect an external device to this product:
  • Verify that a ground loop is not created when you set up the system.
  • Connect the SG terminal to remote equipment when the external device is not isolated.
  • Connect the SG terminal to a known reliable ground connection to reduce the risk of damaging the circuit.
Failure to follow these instructions will result in death or serious injury.
CAUTION
LOSS OF COMMUNICATION
  • Do not put excessive stress on the communication ports of all connections.
  • Securely attach communication cables to the panel wall or cabinet.
  • Use a D-Sub 9 pin connector that has jack screws.
Failure to follow these instructions can result in injury or equipment damage.
NOTE: Use within the rated current.

RS-232C

D-Sub 9 pin plug connector

Product side:

Pin No. RS-232C
Signal name Direction Description
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 Clear To Send
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).

RS-422/485

D-Sub 9 pin plug connector

Product side:

Pin No. RS-422/RS-485
Signal name Direction Description
1 RDA Input Receive Data A (+)
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 Clear To Send B (-)
7 SDB Output Send Data B (-)
8 CSA Input Clear To Send A (+)
9 ERB Output Data Terminal Ready B (-)
Shell FG - Frame Ground (common with SG)

Recommended jack screw is #4-40 (UNC).

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