3964-R

3964R is a simple serial line communication protocol that is developed by Siemens.

You specify the settings for the serial link as with RemnodeSerial, except that there are no stp bits
to specify. You must also specify the character timeout (the maximum time between received characters)
in the attribute CharTimeout. The AckTimeout-attribute specifies the time to wait for an answer.

Messages will be sent straight on without any header. ACK, NAK, DLE and BCC is handled according to
the 3964R protocol.

Receiving messages

There can be only one RemTrans object for receive-messages because of the lack of header
in this protocol. Every received message will be put in the first found RemTrans-object below
the RemNode-object. If the data object for this message is big enough to contain the message,
the message will be stored, and the DataValid flag will be set.

Sending messages

The transport will send a 3964R message to the serial without adding any header.
If we don't have contact with the other node the message will be buffered
if there are still free buffers for this message.