Acyclic Data Exchange - Parker 2003-IP-00 Technical Manual

DOC-0017-08-EN: AC20 Series Ethernet/IP Option
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
1
2 Data Type**
3 N°. of elements
4 Descriptor
5
6 Max Value
7 Min Value
8 Default Value
20 (46)
Access / Type
Name Get / SHORT_STRING
Get / USINT
Get / USINT
Get / USINT
Value Get /Set /Depends on parameter
Get / Depends on parameter
DOC-0017-08-EN-B 04.04.2023
Description
Parameter Name
Data Type Code
N°. of elements of the
parameter
Bit 0 = Get Access
Bit 1 = Set Access
Parameter Value
Maximum allowed
parameter value
Minimum allowed
parameter value
Not supported