Operation
7.8 Communication via EtherNet/IP (EIP)
SINAMICS DCP
Operating Instructions, 09/2019, A5E34382853K
309
Configuration:
● Set "Message Type" to "CIP Generic"
● Set "Service Type" to
– "Get Attribute Single" for reading
– "Set Attribute Single" for writing
● Class: 4xx–xx represents the drive object No. (standard 02 hex for closed-loop control
DCP_CTRL).
● Instance: Parameter number
● Attribute: Parameter index
● Destination: Sufficiently large variable to store the queried value
● "Source Element" and "Source Length" must be defined for writing with service type "Set
Attribute Single". The number of bytes must match the data type of the parameter to be
written.
If the above settings have been activated, the source or destination EtherNet/IP slave to
which the message is to be sent must be specified.
This is done under the "Communication" tab:
Figure 7-56 Communication
"Path": Defines the EtherNet/IP module, in this example "dcmlinks".
The previous example reads the active error number from parameter r0947 index 0 on drive
object No. (Default: 2 for closed-loop control DCP_CTRL).