03.2010 Communication / CBC
Siemens AG 6SE7087-6QX70 (Version AL)
SIMOVERT MASTERDRIVES Compendium Motion Control 8.4-41
P718 (CB parameter 8) P703 (CB parameter 8)
CAN identifier for PZD-receive cross
With this parameter, the CAN identifier for PZD-receive cross (receiving
process data = setpoints / control words) can be set. By means of cross data
traffic between slaves, the actual values sent by a slave (by means of PZD-
send) can be used as setpoints by another slave. For this, the parameter
value of this parameter is set to the CAN identifier of the CAN data telegram
from which the setpoints are to be obtained.
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 cross. The following table applies:
Contents CAN identifier
Control word 1 / Setpoint 2 / Setpoint 3 / Setpoint 4 or
Control word 2
P718/P703
Setpoint 5 to Setpoint 8
P718/P703 + 1
Setpoint 9 to Setpoint 12
P718/P703 + 2
Setpoint 13 to Setpoint 16
P718/P703 + 3
With the value 0 (pre-assigned) in this parameter, PZD-receive cross is
deactivated.
If the CAN identifiers for PZD-receive cross 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 data telegram with CAN identifier 701 is to be used as setpoint 5 to
setpoint 8. For this, the CAN identifier for PZD-receive cross in P718 / P703
must be set to 700. This results in a CAN identifier of 700 for the first CAN
data telegram of PZD-receive cross. The further CAN data telegrams have
CAN identifiers 701 to 703, i.e. the data telegram 701 results in setpoint 5 to
setpoint 8.
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