VFD-MS300/MH300 EtherNet/IP Communication Card CMM-EIP01
CMM-EIP01 Operation Manual
21
5 EtherNet/IP Communication Card Register Settings
The EtherNet/IP interface of VFD-MS300/MH300 supports the drive's various modes
of control. The communication protocol provides support for two packet types for data
exchange. These are: Explicit Message and Implicit Message; these two types of
messages are explained in detail below:
5.1 Explicit Message-based Data Exchange
The host controller directly assigns values to the Inverter. Therefore it is necessary
for the EIP01 communication card to allocate a corresponding address for the Object Class.
Currently, the address of the Object class occupied by the VFD is 0x300, and supported
configuration methods and address list are as follows:
5.1.1 The CMM-EIP01 supports configuration of MS300/MH300 parameters via Explicit
Messages:
The regular correspondence between parameter addresses and explicit messages
is as follows:
EIP communication data format:
Object class Instance Attribute
0x300 + Pr. Group + Pr. Member
For example: If we wish to write a command for parameter Pr. 10-15 (to process encoder
rotation difference error), proceed as follows:
Group Member
10 (0x0A) + 15 (0x0F)
So the Explicit Message format is:
Object class + Instance + Attributes = 0x300 + 0x0A + 0x0F