Momentum Sales & Marketing 170 PNT Series manual Overview of Register Types, Functions, Access to

Communication Access Registers

Overview of Register Types

Purpose	Each adapter contains three groups of internal registers that enable the application
	program to communicate with the I/O base module.
	This section describes the three register types, their functions and how they are
	accessed.
Register Types
	The three types of internal registers are:
	Data registers
	lConfiguration registers
	Status registers
Functions
	The application can access the registers through the network to transfer input or
	output data at the module’s field terminals, to set or retrieve the module’s
	configuration, or to monitor its status.
Access to
	The registers are accessed as 4XXXX references in a controller’s application
Registers	program. Note that the Data Registers are the only ones that can be accessed by
	the controller’s Peer Cop table. All of the registers can be accessed by MSTR
	function blocks.

36 870 USE 103 00 May 2001