NORD Drivesystems BU2100 - Manual (Page 19)

4 Communication and Protocol
BU 2100 GB-2213 19
Coding of the FI parameters into the EtherNet/IP™ format is performed as follows:
FI parameter number to EtherNet/IP™ EtherNet/IP™ to FI parameter number
Class = Table 10 Parameter number = Attribute
Attribute = FI parameter number Sub-index = Instance
Instance = Sub-index
Formation of the instance
The formation of the instance depends on the structure of the relevant parameter.
The following applies for parameter set-dependent parameters without an array (e.g. P103):
Parameter set Bit 1 Bit 0 Instance
1 0 0 0
2 0 1 1
3 1 0 2
4 1 1 3
The following applies for parameters which do not depend on a parameter set, but which have an
array (e.g.P465):
array … Bit 3 Bit 2 Bit 1 Bit 0 Instance
[-01] 0 0 0 0 0
[-02] 0 0 0 1 1
[-03] 0 0 1 0 2
[-04] 0 0 1 1 3
[-05] 0 1 0 0 4
… …
The following applies for parameters which depend on a parameter set and also have an array (e.g.
P400):
array Parameter set
array Parameter set … Bit 3 Bit 2 Bit 1 Bit 0 Instance
[-01] 1 0 0 0 0 0
[-01] 2 0 0 0 1 1
[-01] 3 0 0 1 0 2
[-01] 4 0 0 1 1 3
[-02] 1 0 1 0 0 4
[-02] 2 0 1 0 1 5
… … …
Examples
Device Parameter array Parameter set Class Attribute Instance
Inverter 1 P103 -- 1

101 103 0
Inverter 4 P103 -- 3  104 103 2
Inverter 3 P465 [-01] --  103 465 0
Inverter 3 P465 [-02] --  103 465 1
Inverter 2 P400 [-01] 3  102 400 2
Inverter 2 P400 [-03] 1

102 400 12
Inverter 2 P400 [-03] 3  102 400 14