About the manual 17
Modbus terms and abbreviations
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
indicates to the server what kind of action to
perform.
Holding register
Holds data that will be later executed by an
application program.
Summary of Contents for FSCA-01
Page 1: ... OPTION FOR ABB DRIVES CONVERTERS AND INVERTERS FSCA 01 RS 485 adapter module User s manual ...
Page 4: ......
Page 8: ...8 Table of contents ...
Page 18: ...18 About the manual ...
Page 24: ...24 Overview of the RS 485 network and the FSCA 01 module ...
Page 28: ...28 Mechanical installation ...
Page 32: ...32 Electrical installation ...
Page 68: ...68 Communication profiles ...
Page 82: ...82 Communication protocol ...