DOC-0017-07-EN: AC20 Series - EtherCAT Option
20 (58)
DOC-0017-07-EN-A 27.03.2023
Set process data from EtherCAT master
The ESI file defines the list of manufacturer specific objects. Each object corresponds to an AC20
parameter.
When configuring the PLC, the objects may be mapped to the
process data objects
(PDO) as required.
These objects map to the process data in the order in which they are added.
The parameter
2566 MASTERMAPPING
must be set to
TRUE
and this will auto reset any AC20 input and
output mapping inside the drive.
Cyclic Data Exchange
Cyclic data exchange will occur when the option is in the OPERATIONAL (PROCESS ACTIVE) or STOP
(IDLE) state.
However, the read process data will only update the mapped parameters when in the PROCESS ACTIVE
state.
On transition into the PROCESS ACTIVE state all read process mapped parameters will be updated.
When in the PROCESS ACTIVE state, the read process mapped parameters will all update only when a
change in the read process data occurs.
Mapping status
The process data mapping status can be accessed from AC20 via the following parameters:
•
Parameter
2586 InMappingStatus
: shows the status of the currently active cyclic data input
mapping table (32 entries), value is the Tag ID of the parameter to be cyclic read In.
•
Parameters
2619 OutMappingStatus
: Shows the status of the currently active cyclic data output
mapping table (32 entries), value is the Tag ID of the parameter to be cyclic sent out.
The parameters
2586 InMappingStatus
and
2619 OutMappingStatus
are visible from webserver if
Parameter
2566 MasterMapping = TRUE
and
are valid if
Parameter 0774 Comms State
= PROCESS
ACTIVE.
