Setting up a serial communication (RS232 or RS422) to the OD7000

The OD7000 is equipped with a serial interface that can be either used to set up a serial connection via RS232 or via RS422.

Please note following key facts:

• The hardware connection is made at "Interface A" terminal.
• The interface can be used either to parameterize the sensor or to continuously stream measurement data.
• All commands are documented in the "Protocol and Command Reference" document.
• The commands are sent in ASCII format ("Dollar protocol") followed by two characters: <DC3> <DLE> (0x13 0x10)
• After establishing a communication to the sensor, the OD7000 will immediately start streaming measurement data
• The default baud rate is 115.2 kBaud
• The default serial port configuration is RS232. If RS422 is needed please use the command terminal in the OD7000 Engineering tool to switch the port configuration (Command: "SRPT 1")

Note: It is mandatory to connect RTS and CTS

Attached you can find an example project for the terminal software "Docklight"

The following screenshot shows a typical serial communication:

1. The baud rate is set to 115.2kBaud 
2. After establishing a connection the OD7000 immediately starts streaming the distance value + intensity value
3. By sending the command $STO<DC3><DLE> (HEX: 24 53 54 4F 13 10) the streaming stops (it takes a short moment until the streaming really stops)
4. By sending e.g. $SHZ ?<DC3><DLE> (HEX: 24 53 48 5A 20 3F 13 10) you will receive the current sampling rate setting