8 CHANNEL RS485 RELAY BOARD
|Supply Voltage :||12 ~ 15 V DC|
|Difficulty Level :|
|I/O Voltage :||5 V DC|
The project helps you control 8 relays using RS485 link with the help of a PC. This kit can effectively convert a standard PC to a powerful PLC ( programmable logic controller ). At the PC end , you will need to use our RS232 to RS485 Interface – C020 or any other suitable RS232 to RS485 Converter.
The project can offer a low-cost serial relay contact interface, easy to use with Visual Basic, Basic, C, Labview, Testpoint, or other high level languages that allow access to a serial port.
You can simply use the accompanying software provided with this project or issue control commands using any popular Terminal Port software available on the net.
The Serial port on the computer should be configured to 2400 baud – 8 bit words – 1 stop bit – no parity
RELAY OUTPUT COMMAND SUMMARY
RBnc – “RB” preamble, n – Relay number (1 to 8) and c – set/reset (1 – set, 0 – reset)
RS485 cable connects at CN1 connector. The setting or resetting of the relays is indicated by the associated LED’s close to them. LED D2 blinks to indicate a valid command received. LED D5 is the Power On Board Indicator.
HYPER TERMINAL SETTINGS TO CONTROL RELAY BOARD