Siemens Simovert Masterdrives Compendium page 466

Communication / PROFIBUS
No. Cause
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
No. 240: Fault detection in the CBP; without additional info
240 Reply too long for reply telegram
r748.x (Content of SIMOLINK SLB)
r748.1 Number of error-free synchronizing telegrams
r748.2 CRC error
r748.3 Number of timeout errors
r748.4 Last bus address signaled
r748.5 Address of the node which sends the special
telegram "Timeout"
r748.6 Active SYNC-interrupt delay
r748.7 Position of the node in the ring
r748.8 Number of nodes in the ring
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)
r748.12 Internal
r748.13 Internal
r748.14 Timer
r748.15 Bus cycle time implemented
r748.16 Internal
8.2-136
Diagnosis of clock synchronization with "SIMOLINK" diagnostic
parameter r748 (MASTERDRIVES MC only):
Remedy (e.g. in ProTool)
(Defective basic board or technology board)
(Defective communications partner)
Content of PROFIBUS CBP2
Internal
Internal
Internal
Internal
Internal
Internal
(deviation of pulse period, configured on CU
and set via PROFIBUS)
Maximum permissible deviation of the pulse
period
Internal
Internal
Internal
Internal
Internal
6SE7087-6QX70 (Version AK)
Compendium Motion Control
09.2008
Siemens AG
SIMOVERT MASTERDRIVES