DOC-0017-08-EN: AC20 Series Ethernet/IP Option
20 (46)
DOC-0017-08-EN-B 04.04.2023
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 the webserver and
are valid if
Parameter 0774 Comms State
= PROCESS ACTIVE.
8.3 Acyclic Data Exchange
Acyclic access of the AC20 parameters may be achieved using explicit messaging via EtherNet/IP
Get
and
Set
attribute requests to the CIP object
A2h
. The instance number of this object corresponds directly to the
AC20 parameter number. The supported services are
Get Attribute Single
and
Set Attribute Single
.
The instance attributes are summarized as follow:
#
Attribute Name
Access / Type
Description
1
Name
Get / SHORT_STRING
Parameter Name
2
Data Type**
Get / USINT
Data Type Code
3
N°. of elements
Get / USINT
N°. of elements of the
parameter
4
Descriptor
Get / USINT
Bit 0 = Get Access
Bit 1 = Set Access
5
Value
Get /Set /Depends on parameter
Parameter Value
6
Max Value
Get / Depends on parameter
Maximum allowed
parameter value
7
Min Value
Minimum allowed
parameter value
8
Default Value
Not supported
