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348 Parameters
Selects the communication time levels.
In general, lower time levels of read/write services reduce
CPU load. The table below shows the time levels of the
read/write services for cyclic high and cyclic low data with
each parameter setting.
* Cyclic high data consists of fieldbus Status word, Act1 and
Act2.
** Cyclic low data consists of the parameter data mapped to
parameter groups
and
,
and acyclic data.
Control word, Ref1 and Ref2 are handled as interrupts
generated on receipt of cyclic high messages.
Note:
This parameter cannot be changed while the drive is
running.
Normal
Normal speed.
0
Fast
Fast speed.
1
Very fast
Very fast speed.
2
Monitoring
Low speed. Optimized for PC tool communication and
monitoring usage.
3
Activates fieldbus communication monitoring separately for
each control location (see section
The parameter is primarily intended for monitoring the
communication with FBA A when it is connected to the
application program and not selected as a control source by
drive parameters.
0000b
0000b…0111b
FBA A communication monitoring selection.
1 = 1
Enables/disables communication between the drive and
fieldbus adapter B, and specifies the slot the adapter is
installed into.
Note:
This parameter cannot be changed while the drive is
running.
Disable
Communication between drive and fieldbus adapter B
disabled.
0
Option slot 1
Communication between drive and fieldbus adapter B
enabled. The adapter is in slot 1.
1
No.
Name/Value
Description
Def
/
FbEq16
Selection
Cyclic high *
Cyclic low **
10 ms
2 ms
2 ms
10 ms
500 µs
2 ms
250 µs
2 ms
Bit
Name
Value
0
Ext 1
1 = Communication monitoring active when Ext 1 is being used.
1
Ext 2
1 = Communication monitoring active when Ext 2 is being used.
2
Local
1 = Communication monitoring active when local control is being
used.
3…15
Reserved
Содержание ACS880-x04
Страница 1: ... ABB INDUSTRIAL DRIVES ACS880 primary control program Firmware manual ...
Страница 4: ......
Страница 18: ...18 Using the control panel ...
Страница 24: ...24 Control locations and operating modes ...
Страница 111: ...Application macros 111 Fieldbus control macro This application macro is not supported by the current firmware version ...
Страница 112: ...112 Application macros ...
Страница 496: ...496 Additional parameter data ...
Страница 544: ...544 Fault tracing ...
Страница 602: ...602 Control chain diagrams ...