Communication / PROFIBUS 09.2008
6SE7087-6QX70 (Version AK) Siemens AG
8.2-136 Compendium Motion Control SIMOVERT MASTERDRIVES
No. Cause Remedy (e.g. in ProTool)
No. 220: S7 task has been changed into a parameter task. Reply from the basic board or the
technology board is faulty. Fault detection in the CBP. Additional info in r732.23, r732.24: data
block number, data block offset.
220 Parameter reply does not match task (Defective basic board or technology board)
No. 240: Fault detection in the CBP; without additional info
240 Reply too long for reply telegram (Defective communications partner)
Diagnosis of clock synchronization with "SIMOLINK" diagnostic
parameter r748 (MASTERDRIVES MC only):
r748.x (Content of SIMOLINK SLB) Content of PROFIBUS CBP2
r748.1 Number of error-free synchronizing telegrams
r748.2 CRC error Internal
r748.3 Number of timeout errors Internal
r748.4 Last bus address signaled Internal
r748.5
Address of the node which sends the special
telegram "Timeout"
Internal
r748.6 Active SYNC-interrupt delay Internal
r748.7 Position of the node in the ring
Internal
(deviation of pulse period, configured on CU
and set via PROFIBUS)
r748.8 Number of nodes in the ring
Maximum permissible deviation of the pulse
period
r748.9
Synchronism deviation (65535: Synchronization not active) should fluctuate between 65515
and 20
r748.10 Corrected pulse period in units of 100 ns
r748.11 T0 counter (0 if synchronization active) Internal
r748.12 Internal Internal
r748.13 Internal Internal
r748.14 Timer Internal
r748.15 Bus cycle time implemented
r748.16 Internal Internal
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