Lenze E84Dxxxx - Manual (Page 14)

4 Technical data
4.2 Protocol data
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Lenze · Decentralised frequency inverter 8400 protec (EtherNet/IP™ option) · Communication Manual · DMS 3.0 EN · 07/2014 · TD17
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4.2 Protocol data
4.3 Communication time
The communication time is the time between the start of a request and the arrival of the
corresponding response.
The communication times in an EtherNet/IP network depend on the ...
• processing time in the inverter;
• telegram runtime (baud rate / telegram length);
• nesting depth of the network.
processing time within the inverter
There are no interdependencies between parameter data and I/O data.
Range Values
I/O data words 1 ... 16 words (max. 32 bytes, 16 bits/word)
Supported CIP services • Get_Attributes_All
• Get_Attribute_Single
• Set_Attribute_Single
• Reset (types ’0’ and ’1’ only)
• Forward_Open
• Forward_Close
• Get_Member
Data Processing time
Process data (I/O data) 10 ms
+ 0 ... 1 ms
+ 1 ... x ms
Lenze standard update cycle (can be changed in the Rockwell
engineering tool)
Processing time in the module
Runtime of the application task of the technology
application used (tolerance)
Parameter data Approx. 30 ms + a tolerance of 20 ms (typically)
For some codes, the processing time may be longer (see reference manual/
»Engineer« online help for the Inverter Drive 8400 protec).