Test ERNA Protocol with Comm Operator

Comm Operator is professional communication software for serial port, TCP/IP, UDP, HTTP, and FTDI.

One of the applications for Comm Operator is to test serial port communication protocol. Comm Operator makes it possible for our PTZ Controller software to support several PTZ Camera protocols.

Here will show you how to test PTZ camera ERNA Protocol with Comm Operator.

Connection: Baud Rate 2400; Data Bits 8; Parity None; Stop Bits 1

The format of ERNA Protocol shows as below.

ERNA Protocol Format

  • Header is always 02 Hex. Here Address is set 01 Hex.
  • Command and Data for Pan Tilt Zoom can be got from ERNA Protocol.
  • Comm Operator will calculate Checksum automatically.

After you connect your PTZ Camera, run Comm Operator –> Open Connection, select Com Port and Baud Rate for PTZ Camera.

Comm Operator - Connection

Click Tools –> Options to select the Checksum method.

Comm Operator - CheckSum Method

In Quick Send panel, input the command, check “Add to List” and “Check Sum”.

Click Send button, the command together with Check Sum will be added to the Send Data List panel. At the same time  the Camera will do the action follow the command.

Comm Operator - Test ERNA Protocol

So, here are the control commands for Pan Tilt zoom.

ERNA Protocol

Note: 

  • Before you send Pan/ Tilt command, Pan/Tilt Speed command needs to be sent first.
  • Add Stop command first, otherwise the camera will repeat the action.

You may also use built- in Calculator of Comm Operator to do more calculation.

Comm Operator -Calculator