Communication Data Format (2) - Panasonic FP2 ET-LAN Technical Manual

7.4.2 Communication Data Format (2)

Format when the partner node is not on the same hierarchy level as the MEWTOCOL
communication
If there is another link unit between the computer and the partner node, acting as a relay station, the
-
partner node is said to be on a different hierarchy level from the computer.
With the ET-LAN unit, if the computer link function is being used with a unit on a different hierarchy
-
level, commands and responses are sent and received using the format noted below.
Format of command transmission data
Precautions concerning format
The number of bytes comprising the MEWTOCOL-COM command or message is converted to
-
hexadecimal data and specified for the "Data Size" parameter.
The "Station Number for Relay Station" and "Route Number for Relay Station" parameters should be
-
specified using the pertinent number. If there is only one relay station, the spaces for the second and
third relay stations will be filled in, closing the gap.
7-14
Format of response received data