The RS-485 Power Adapter can be used for injecting 24 VDC from an external 24 VDC power supply to an RS-485 based network such as Room Bus or Sensor Bus. This is useful, for example, in applications where you want to extend the RS-485 bus by connecting (daisy-chaining) additional devices, which the RP or MP controller would otherwise not be able to power. The external power supply is connected to the bus via the adapter.
This section provides grounding and power recommendations for system configurations with the RP-C controller models that support 230 VAC input power.
The RP-C 230 V controller models RP-C-16A-F-230V and RP-C-16B-F-230V have a 24 VAC (19 VA) Class 2 output that can be used to power external loads such as actuators, relays, or indicators. The external loads can be controlled using the controller's solid-state relay (SSR) or relay outputs.
The RP-C-16B-F-230V model has 16 I/O points and the controller is equipped with 30 fixed screw terminals.
The RP-C-16A-F-230V model has 16 I/O points and the controller is equipped with 30 fixed screw terminals.
Part numbers: SXWRCF16A10003 and SXWRCF16B10002
You perform the following steps to power up an RP-C 24 V controller model.
You can reset and restart the RP controllers in different ways depending on how long you press the reset button. The resets and restarts can affect the retention of values after restart based on the retain levels configured for the variables.
The RP controller Modbus RTU (RS-485) subnetwork allows standard Modbus devices and the KNX Modbus gateway (RP-C-EXT-KNX) to be connected to the controller. An adapter is required for converting the controller RS-485 Com port with RJ45 interface to screw terminals.