8 APPENDIXES
8-24
(3) Token and data
The following six different data patterns are used for token transmission:
Table 8-6 Token and Data (LQE500)
Pattern
Description
When no data is involved
Only the token is transmitted.
When only cyclic data is transmitted
The cyclic data is transmitted with the token attached to it.
When only cyclic data is transmitted
after being divided into frames
Only the cyclic data is transmitted with the token attached to
the last frame.
When only message data is transmitted The token is transmitted subsequently to message data
transmission.
When cyclic data and message data is
transmitted
After transmission of the message data, the cyclic data is
transmitted with the token attached to it.
When cyclic data and message data are
transmitted with the cyclic data divided
into frames
After transmission of the message data, only the cyclic data is
transmitted with the token attached to the last frame.
Token
Token + cyclic data
Cyclic data
Message data
Token
Message data
Token + cyclic data
Token + cyclic data
Cyclic data
Token + cyclic data
Message data
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