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14 Introduction to the manual
Term
FMBT-21 adapter module
LSB
LSC
MAC address
MSB
MSC
PLC
Profile
SNTP
Status word
Modbus/TCP 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 tells the server what kind of action
to perform.
Holding register
Holds data that will be later executed by an application program.
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Description
One of the optional fieldbus adapter modules available for ABB drives. FMBT-
21 is a device through which an ABB drive is connected to an Ethernet network.
Least significant bit
Least significant character
Media Access Control address
Most significant bit
Most significant character
Programmable logic controller
Adaptation of a communication protocol for a certain application field (for
example drives)
Simple Network Time Protocol. A protocol to synchronize drive time with the
network time server.
16-bit or 32-bit word from a controlled device to the controller with bit-coded
status signals
Code
9AAK10103A6193
9AKK106930A8739
9AKK105713A8085
9AKK10103A0587
9AKK106713A2709
9AKK106930A9060
9AKK106930A9059
9AKK106930A9053
9AKK106930A5239
9AKK106930A5241
9AKK106930A3150
9AKK105408A7004
9AKK105713A4819
9AKK105408A8149
9AKK105713A6663
9AKK107680A9275
9AKK106930A9565
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