RS232/RS485 converter - MIDAM CRS01
CRS01 is a microprocessor controlled multi-speed half-duplex physical level converter that allows to interface a RS232 network with a RS485 network. The communication circuits are galvanically isolated from other parts of the module against spikes and surges.
- RS232 to RS485 bus connection
- Microprocessor-controlled
- Galvanically isolated communication circuits
Function
The CRS01 converter supports half-duplex communication for RS485 communication bus. For automatic flow control, a microcontroller is used which is regulated by CTS or DSR signals (DSR as default). The communication speed of both channels must be equal and has to be set by DIP switches under the front top cap of the converter. There are three LEDs at the front panel to indicate power supply and RS485 data flow status. 2-pole connector is used for RS485 connection. The line is protected against overvoltage. In case the converter is used as the last device in the communication bus, a terminating resistor may be embedded by connecting DIP switch accessible below the RS485 terminal. CANON 9M (pins) connector is used for RS232 connection. For PC connection, use nullmodem (cross) cable with CANON 9F (female) at both ends.
Application
- RS232 to RS485 conversion
- Communication bus with I/O modules for PC
- Integration into a higher-level SCADA system
Configuration
The device does not include any adjustment or configuration elements. Possible diagnostic functions are handled by the driver in the application IDE or by the higher-level SCADA system.
Integration into a higher-level SCADA system
The CRS01 can be integrated into a higher-level SCADA system directly via the RS232 interface bus.