Siemens SINAMICS DCM Manual page 499

Descriptions of functions
10.7 EtherNet/IP
Example 2:
DO
DC_CTRL (drive)
CU
TM31
Sum = length
In contrast to PROFIBUS and PROFINET communication, only connected PZDs in the drive
can be used in the assembly.
In example 1, all ten words of the drive and the two words of the CU must have an active
BICO connection. This means that all data received from the PLC must be connected to a
parameter, which correspondingly also applies to the data sent to the PLC. All words must
therefore be supplied with status or actual values.
To avoid "dummy" connections, all the required BICO connections and the last word can be
parameterized.
With reference to example 1, only six or the ten words defined for sending/receiving, are
required the operation. The remaining four are in reserve. Consequently, the first six words
are assigned to their respective parameters and in addition, the last word (PZD10) is
assigned to a dummy value, i.e. a parameter that is not used for the drive application.
The number of PZDs must be mapped to the assembly. When the assignment of the PZDs is
complete, parameter p8842=1 must be set on the CU.
If the change is to be permanent, copy RAM to ROM.
The sequence of the drive objects depends on the communication settings in the drive which
can be accessed via the "communication item" of the associated drive in the project tree of
the STARTER software.
500
Number of words to be sent
10
0
1
11 words = 22 bytes
Operating Instructions, 02.2015, A5E34763375/RS-AA/001
ac.maher.co.ir
Number of words to be received
5
0
1
6 words = 12 bytes
SINAMICS DCM DC Converter