15 Ethernet interface

14.2.2.Format of the emission messages

The exchanges from the recorder to a control system are messages made of successions of ASCII characters (and possibly binary objects) ended with a termination sequence.

The format of the emission messages is identical with the format of the reception messages. However, its structure is more rigid.

The syntax of an emission message is: Message unit + termination sequence

Message unit:

If the message includes several message units, they will be separated by ";".

Termination sequence:

-RS232 link (selection in the Config menu):

-CR: Carriage Return (13 in decimal)

-LF: Line Feed (10 in decimal)

-CR and LF.

-Ethernet link:

-LF: Line Feed (10 in decimal)

Syntax of a message unit:

A message unit (for example: :TYP:THE J,COMP) is made of several fields

- Heading:

(for example :TYP:THE) made of one (simple heading) or several (composed heading) chains of 1 to 12 alphabetical characters (upper case only or digital or "_" (coded ASCII 95 in decimal).

A heading chain always begins with an alphabetical character.

In a composed heading, character chains are separated with the ":" character (for example :TYP:THE).

-Heading separator:

"space" character (32d) only

-One or several pieces of data:

(for example: J,COMP) alphanumerical, digital or made or various characters or binary octets.

-Data separator:

A comma ",".

Data:

There are several types of pieces of data:

-Alphanumerical data:

1 to 12-character ASCII-coded chains that can be alphabetical (upper case only), digital or "_" (95d) (example J).

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Escort 3016B, 3008B, 3004B user manual Ethernet interface Format of the emission messages