概念
Communication Ports on RP-V-5C-M
The RP-V-5C-M model provides the following communication ports:
One RS-485 port with RJ45 interface
One RS-485 port with terminal block
RS-485 Port with RJ45 Interface
The RS-485 port is labeled:
RS-485 Com A
The RS-485 Com A port is rated 3 W (24 VDC).
The RS-485 Com A port is an RJ45 port. 有关更多信息，请参阅 RJ45 Pinout for the RS-485 Port(s) of the RP-V Controllers .
The RS-485 Com A port can be configured to use one of the following two communication protocols for different types of networks:
Sensor bus
Modbus
An RP-V can have only one of each network type.
The sensor bus is designed for communication with SpaceLogic Sensor devices. 有关更多信息，请参阅 RP-V Sensor Bus .
The Modbus (RTU) network can be used for communication with standard Modbus devices. 有关更多信息，请参阅 RP-V Modbus .
Default configuration:
Sensor bus on the RS-485 Com A port
有关更多信息，请参阅 Communication Port Wiring .
有关更多信息，请参阅 Allocating Flexible Ports .
RS-485 Port with Terminal Block
The RS-485 port with screw terminal block is used for connection to the BACnet MS/TP (RS-485) network.
The screw terminals are labeled:
RS-485+
RS-485–
Shield
有关更多信息，请参阅 RP-V-5C-M Screw Terminals .
有关更多信息，请参阅 RS-485 Communications .
Hardware Overview
RP-V Communication Ports
RP-V Controllers
RP-V Sensor Bus
RP-V Modbus
RJ45 Pinout for the RS-485 Port(s) of the RP-V Controllers
Allocating Flexible Ports
RP-V-5C-M Screw Terminals
RS-485 Communications