Spectrum Controls 1756sc-CTR8 - Manual (Page 11)

Module Overview
This chapter describes the counter module and explains how the
ControlLogix controller reads analog input data from the module. Read
this chapter to familiarize yourself further with your counter module. This
chapter covers:
• general description and hardware features
• an overview of system and module operation
General Description
This module is designed exclusively for use in the Allen-Bradley
ControlLogix 1756 I/O rack systems. The module reads AC and DC
pulse information from external sensors and stores it in its image table for
retrieval by all ControlLogix processors.
Following is a list of features available on the CTR8 module that allow
their use in a wide variety of applications.
· Removal and insertion under power (RIUP) - a system feature that
allows you to remove and insert modules while chassis power is applied
· Producer/consumer communications - an intelligent data exchange
between modules and other system devices in which each module
produces data without having been polled
· System timestamp of data - 64 bit system clock places a timestamp on
the transfer of data between the module and its owner controller within
the local chassis
· IEEE 32 bit floating point format
· On-Board Features, such as custom User Scaling, Analog and Digital
Filtering, and Under/Over Detection
· Class I/Division 2, UL, CUL, CE, and FM Agency Certification
Chapter 1