Serial port (RS-232) of the ECOPRO Gen4

The ECOPRO Gen4 has an RS-232 port on its vehicle connector (DB-44: transmit on pin 25, receive on pin 9 and ground on pin 39). It is for machines with a serial port: forklifts, generator sets, refrigeration units or gas analyzers.

1. Combined DB-44 to OBD and DB-9 cable

• OBD branch (J1962): the usual vehicle diagnosis.
• Male DB-9 branch: pin 2 receive, 3 transmit and 5 ground, like the COM port of a PC.
• With this cable the tool knows it has OBD and RS-232 at once and can use both in the same session.

2. Straight cable or null-modem

3. Read Modbus registers

1. Open the page of your ECOPRO Gen4 and find the “Serial port (RS-232)” panel.
2. In “Read Modbus registers” enter the machine address, the register type, the first register and how many to read (up to 125).
3. If the machine does not use 19,200 baud with even parity, change it in “Advanced options”, “Serial line”.
4. Press “Read”. You will see a table with the number of each register and its value.

Tip: The read only reads: it never writes to the machine. If it does not answer, check the speed, the parity, the cable and whether a null-modem is needed.

4. Serial channel in a remote session

Besides the vehicle bus, a remote session can carry the serial line of the ECOPRO Gen4 with its speed, bits, parity and flow control (none or XON/XOFF), under the same customer consent and if the tool's policy allows “Serial tunnel (RS-232)”. In the session's PassThru panel you will see “Serial channel of this session” with its parameters: set up the machine's program the same way.

Important: The COM port of the Diaglana PassThru agent on the PC is being prepared: until it arrives, the PC program cannot open the session's serial channel yet.

Open the platform See it in the help centre