| Name | Description |
|---|---|
| StandardSignalCurrentInput | Standardised electrical current between 0 mA and 20 mA for information transmission. |
| StandardSignalCurrentOutput | Standardised electrical current between 0 mA and 20 mA for information transmission. |
| StandardSignalCurrentOffsetInput | Standardised electrical current between 4 mA and 20 mA for information transmission. |
| StandardSignalCurrentOffsetOutput | Standardised electrical current between 4 mA and 20 mA for information transmission. |