ABB ACS880 - Basics of the Embedded Fieldbus Interface

Function/InformationSetting for fieldbus
control
Parameter
Sets the digital input/output to output
mode.
Output (default)11.5 DIO1 function
11.9 DIO2 function
Connects bit 8 of storage parameter
10.99 RO/DIO control word to digital in-
put/output DIO1.
RO/DIO control word
bit8
11.6 DIO1 output source
Connects bit 9 of storage parameter
10.99 RO/DIO control word to digital in-
put/output DIO2.
RO/DIO control word
bit9
11.10 DIO2 output source
Connects storage parameter 13.91 AO1
data storage to analog output AO1.
AO1 data storage13.12 AO1 source
Connects storage parameter 13.92 AO2
data storage to analog output AO2.
AO2 data storage13.22 AO2 source
PROCESS PID FEEDBACK AND SETPOINT
Connect the bits of the storage paramet-
er (10.99 RO/DIO control word) to the
digital input/outputs of the drive.
Feedback data stor-
age
40.8 Set 1 feedback 1
source
Setpoint data storage40.16 Set 1 setpoint 1
source
SYSTEM CONTROL INPUTS
Saves parameter value changes (includ-
ing those made through fieldbus control)
to permanent memory.
Save (reverts to Done)96.7 Parameter save
manually
Basics of the embedded fieldbus interface
The cyclic communication between a fieldbus system and the drive consists of
16-bit data words or 32-bit data words (with the transparent control profiles).
The diagram below illustrates the operation of the embedded fieldbus interface.
The signals transferred in the cyclic communication are explained further below
the diagram.
710 Fieldbus control through the embedded fieldbus interface (EFB)