External Communication binary format

This article explains the binary format exchanged through UDP or TCP for the external Communication messages. The binary format of the UDP or TCP byte content is identical to the framework Communication Protocol.

Note that all the communication should be encoded or decoded in Big Endian.

Structure of a message

There are two types of messages:

• Nominal messages which are sent normally for a Service invocation
• Exception messages which are sent when a Module emits an error

Time stamp

The Time stamp value allows to force set the time stamp value for the Service (see Java modules service interface).

If you set the value to 0, the framework will use the moment when the content of the service has been decoded to set the time stamp value.