Introduction to the manual 27
Modbus/TCP terms and abbreviations
EtherNet/IP terms and abbreviations
Abbreviation Explanation
DHCP Dynamic Host Control Protocol. A protocol for
automating the configuration of IP devices.
DHCP can be used to automatically assign IP
addresses and related network information.
EMC Electromagnetic compatibility
FBA Fieldbus adapter
LSB Least significant bit
MSB Most significant bit
PLC Programmable logic controller
Term Explanation
Exception code If an error related to the requested Modbus
function occurs, the data field contains an
exception code that the server application can
use to determine the next action to be taken.
Function code The second byte sent by the client. The function
tells the server what kind of action to perform.
Holding register Holds data that will be later executed by an
application program.
Term Explanation
EDS file The Electronic Data Sheet (EDS) file identifies
the properties of the device to the EtherNet/IP
client. Each type of drive and application
program requires its own EDS file.
Input In the ODVA EtherNet/IP specification the word
‘input’ is used to describe data flow from a
device (such as the adapter module) to the
network.
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