Primitive Functions - Siemens SIMATIC TIWAY 1 User Manual

4.2

Primitive Functions

SIMATIC TIWAY I Series 500 NIM User Manual
Primitives serve as the command structure that a TIWAY I Primary uses to
access (read or write) information in a TIWAY I Secondary. The Primitives
defined in the following paragraphs serve these basic functional needs:
To access and retrieve data
To ascertain the status and configuration of attached devices
To perform control operations on the attached device
NIM Primitives 4-3