Communication / CBC
03.2010
6SE7087-6QX70 (Version AL) Siemens AG
8.4-40
Compendium Motion Control
SIMOVERT MASTERDRIVES
P717 (CB parameter 7)
P702 (CB parameter 7)
CAN identifier for PZD-receive multicast
With this parameter, the CAN identifier for PZD-receive multicast (receiving
process data = setpoints / control words) can be set. A multicast telegram is
to be received by a group of slaves on the bus. This parameter must be set
the same for all slaves in this group.
Because only four setpoints (= 8 bytes) can be transferred with one CAN data
telegram but 16 setpoints are supported by MASTERDRIVES units, a total of
four CAN data telegrams with four CAN identifiers are needed for transferring
the setpoints. The following three CAN identifiers are therefore also provided
for PZD-receive multicast. The following table applies:
Contents
CAN identifier
Control word 1 / Setpoint 2 / Setpoint 3 / Setpoint 4 or
Control word 2
P717/
P702
Setpoint 5 to Setpoint 8
P717/
P702
+ 1
Setpoint 9 to Setpoint 12
P717/
P702
+ 2
Setpoint 13 to Setpoint 16
P717/
P702
+ 3
With the value 0 (pre-assigned) in this parameter, PZD-receive multicast is
deactivated.
If the CAN identifiers for PZD-receive multicast are outside the valid range (1
to 2000) or if they overlap another CAN identifier, error F080 appears when
status 4 "hardware configuration" is left. After acknowledgement of the error,
you are in the "hardware configuration" status again and can correct the
incorrect parameterization.
Example:
The CAN identifier for PZD-receive multicast in P717 / P702 is set to 50. This
results in a CAN identifier of 50 for the first CAN data telegram of PZD-
receive multicast. The further CAD data telegrams for PZD-receive multicast
have CAN identifiers 51 to 53.
