Free Pdo Mapping - Siemens SINAMICS G120 CU230P-2 HVAC Operating Instructions Manual

Configuring the fieldbus
6.3 Communication over CANopen
6.3.2.7

Free PDO mapping

Using the free PDO mapping, you can interconnect additional process data from the object
directory corresponding to the requirements of your particular system for the PDO service.
In the factory, the converter is set to free PDO mapping. If your converter has been changed
over to the Predefined Connection Set, you must change over to free PDO mapping, see
Section PDO and PDO services (Page 161).
A PDO can transfer up to eight bytes of user data. With mapping, you define which user data
are transferred in a PDO.
Example
The following diagram shows an example of PDO mapping (values are hexadecimal (e.g.
object size 10 hex = 16 bits)):
For the control word and the setpoint speed
p08711[0] = 6040
Figure 6-14 PDO mapping for control word and speed setpoint
166
Frequency inverters with Control Units CU230P-2 HVAC, CU230P-2 DP, CU230P-2 CAN
Operating Instructions, 01/2011, FW 4.4, A5E02430659B AD