RS422
The optional RS422 serial interface includes an electrically isolated M12 IP65 socket for serial data transmission.
The channel features overvoltage protection. If an overvoltage occurs, the channel is switched off.
Fig.12: RS422 interface pin numberingPin | Signal | Type | Description |
|---|---|---|---|
1 | - | - | - |
2 | TxD + | Data-Out + | Transmit 422 |
3 | RxD + | Data-In + | Receive 422 |
4 | - | - | - |
5 | GND | Ground | Ground |
6 | VCC | VCC | +5 V |
7 | TxD - | Data-Out - | Transmit 422 |
8 | RxD - | Data-In - | Receive 422 |
9 | - | - | - |
On delivery the interface is configured as a full duplex endpoint as standard:
Function | Status |
|---|---|
Echo | on |
Auto send | off |
Always send | on |
Auto receive | off |
Always receive | on |
Termination | on |