The KNX Modbus RTU Gateway 886.1 secure is a compact Gateway between KNX TP and Modbus RTU with 250 freely configurable channels.
The device enables easy integration of Modbus devices that support the RTU protocol via RS-485 and can act as a Modbus master or slave. As Master the device can address up to 25 slave devices.
The assignment between KNX objects and Modbus registers can be configured via parameters in the ETS without an additional tool.
Two buttons and three multi-colored LEDs on the front panel allow local operation (synchronisation functions) and visualization of the device status.
The gateway provides a galvanic isolation between KNX bus and Modbus.
Power is supplied via the KNX bus. The device supports KNX Security.
Technical data
Mechanical data
- Housing: Plastic
- DIN rail mounted device, width: 18 mm
Controls and indicators
- 2 buttons and 3 LEDs (multicolor)
- KNX programming button with LED (red)
Modbus
- Type: RTU
- RS-485, with adjustable baud rate
- Master or Slave
- Master: up to 25 slave devices
- Up to 250 channels
KNX
Power supply
- KNX Bus approx. 8 mA, bus powered
Connectors
- Connector for KNX Bus (red / black)
- 2x pluggable screw connector (3 poles) for Modbus
