Manual BG41/BG42/BG43
Software
Rev. 99/49
4-43
4.1.8.2 Procedure
The following describes the structure of the procedure and the telegrams:
Fig. 4-4: Structure of the procedure 3964(R) with RK512
Time-outs:
The following times are regarded as time-out:
Acknowledgement delay time:
(QVZ) =
2000 ms
Character delay time:
(ZVZ) =
220 ms
QVZ is monitored between STX and DLE as well as between BCC and DLE. ZVZ is monitored
during the entire reception of the telegrams.
STX is transmitted again when QVZ is expired to STX. After 5 attempts a NAK is sent and the
connection set-up is terminated. The same happens when an NTX or any character has been
received after an STX.
When the QVZ is expired after the telegram (after BCC byte) or when a character unequal to DLE is
received, the connection set-up and the telegram are repeated. Five attempts are also undertaken,
after which a NAK is transmitted and the transmission interrupted.
Summary of Contents for SSM-BG41
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Page 8: ...Contents Manual BG41 BG42 BG43 iv Rev 99 49...
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Page 53: ...Manual BG41 BG42 BG43 Interface modules Rev 99 49 3 25 3 2 7 2 Data flow Fig 3 26 Data flow...
Page 114: ...Functional description and allocation of terminal pins Manual BG41 BG42 BG43 3 86 Rev 99 49...
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Page 222: ...Application of interfaces without data handling blocks Manual BG41 BG42 BG43 4 106 Rev 99 49...
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Page 274: ...Overview cycle load Manual BG41 BG42 BG43 6 14 Rev 99 49...
Page 275: ...Appendix A List of figures A 1 B Index of tables B 1 C Index C 1...
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