7
7.3 List of faults and warnings
7-701
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
828 Fieldbus is not in clock-cycle synchronism to the
master
Cause The bus interface is in the data exchange state and was selected using the
parameterizing telegram of the clock-cycle synchronous operation. It was
not possible to synchronize to the clock cycle specified by the master and
to the master sign of life.
Causes:
– The master does not send an equidistant global control frame
although clock synchronism has been selected via the bus configuration.
– The master uses another equidistant DP clock cycle than was transferred
to the slave in the parameterizing telegram.
– The master does not increment its sign-of-life in the configured time grid
Tmapc.
Remedy Check master application and bus configuration
Check the consistency between the clock cycle input for the slave con-
figuring and the clock cycle setting at the master.
If the master (e.g. SIMATIC S7) does not transfer a sign-of-life, the
sign-of-life evalution can also be suppressed using P0879 bit 8.
Acknowledgement not required
Stop response STOP VII
7 Fault Handling/Diagnostics
04.05
To Next Page
Loading...
