GE Industrial Solutions 6KCV300lNS - Manual (Page 10)

GEI-100445
4.0 SERVICES SUPPORTED BY THE CARD
Hereby you have a description of the services which a Master can require to the cards .
4.1 Context Management Services
The services regarding the system control are the following:
Initiate
Abort
Reject.
4.1.1 Initiate
This service can establish the connection between two communication Partners. To achieve this, there is an
information exchange about the possible services accepted and the length of PDU.
4.1.2 Abort
This service terminates the previously established connection between two communication Partners.
4.1.3 Reject
With this service PMS rejects a non-allowed PDU.
4.2 Variable Access Services Variable Access Services
The services regarding the access to the variables are:
Read
Write
Information Report.
4.2.1 Read
This service gives the possibility to read the values of a parameter, an array or a structure. As far as arrays
and structures are concerned, their values can be entirely read (by setting the subindex to zero) or read the
elements one by one (by setting in the subindex the number of the element involved in the operation).
4.2.2 Write