Connection ModBus RTU
CAUTION
Property damage due to external voltage!
An external voltage which is applied destroys the component.
- Do not apply external voltage (connect potential-free).
See Overview of components for position numbers | |
9 | ModBus: RS485 interface |
10 | ModBus: Jumper for termination/polarisation |
The ModBus protocol is available for connection to a building management system.
- Insert the connection cable laid by the customer through the threaded cable glands and secure.
- Connect the wires to the terminal strip according to the connection diagram.
Observe the following points:
- Interface: RS485
- Field bus protocol settings: Menu 2.01 to 2.05.
- The switchgear is terminated at the factory. Remove termination: Remove jumper “J2”.
- If the ModBus requires a polarisation, plug in jumpers “J3” and “J4”.