Lenze E94AYCDN - Manual (Page 18)

4 Technical data
4.3 Protocol data
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Lenze · E94AYCDN communication module (DeviceNet™) · Communication Manual · DMS 5.0 EN · 02/2014 · TD17
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Example
Which type of protective insulation is there between the bus terminal of the device module on slot
MXI1 or MXI2 and the mains terminal X100?
The separate potential area with the better protective insulation is decisive.
• The separate potential area of the bus terminal of the device module has a "functional
insulation".
• The separate potential area of the mains terminal has a "reinforced insulation".
Result: The insulation between mains terminal X100 and the bus terminal is a "reinforced
insulation".
4.3 Protocol data
4.4 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 DeviceNet network depend on the ...
• Processing time inside the drive;
• telegram runtime (baud rate / telegram length).
Processing time inside the drive
There are no interconnections between parameter data and process data.
Area Values
Process data words 1 ... 32 words (16 bits/word)
Supported services • Reset
• Get_Attribute_Single
• Set_Attribute_Single
• Allocate_Master/Slave_Connection_Set
• Release_Group_2_Identifier_Set
Data Processing time
Process data Approx. 2 ms + 1 ms tolerance + runtime of the technology applications used
Parameter data Approx. 30 ms + a tolerance of 20 ms (typically)
For some codes the processing time can be longer (see reference manual/
»Engineer« online help for the Servo Drive 9400).