Question

I am trying to send an ASCII string from a PC with the Hercules software through the FM6300's RS485 port in COM TCP LINK Mode. Supposedly the FM6300 encodes the ASCII with CODEC12 and transmits it to the targeted server. However, no ASCII appears on the server even after decoding the message. Unintelligible hexadecimal values appear. How is the encoding that the FM6300 does?

Answer 1

Hello.

Could You please provide an example of message You sent?

Thank You.

Best Regards

Comments

Viewing this link:

https://wiki.teltonika-gps.com/view/FM63_Testing_RS-232_and_RS-485_TCP_Lin

In the example from Teltonika,  test text will be sent: Hello, lets test TCP link mode. In Codec.12 format it looks: 00000000000000260C01050000001e48656c6c6f2c206c657473207465737420544350206c696e6b206d6f64650100001aef
 

If I send from the Hercules software running on a PC that message as HEX through the RS485 port of the FM6300 configured as COM TCPLINK MODE, no ASCII characters appear on the server receiving the message.

In the server appears

000000000000003A0C010600000032FEFFFFFFFFFFFFB3E7FDF5FFFFFFC36F35272721A7BF27351719BF17351917BF57795FBF272D2329BF25213735FDFFFFCB21010000279F

There are no ASCII characters there

And if I send this only ASCII text: HELLO   HOLA

On the server appears the following: 00000000000000170C01060000000FBED59D9D85FDFBFB7B859DF595EBFF010000C296
With codec 12 decoding, we get: BED59D9D85FDFBFB7B859DF595EBFF which is not ASCII.
 

Please explain what encoding the FM6300 applies and how it must be decoded to obtain the ASCII characters sent.