SYSTEM ARCHITECTURE
SNAP PAC Brains User’s Guide
12
System Architecture
SNAP PAC brains can be used in two ways:
•
For distributed intelligence in a larger control system based on a SNAP PAC controller running
PAC Control
•
As an independent I/O processor
The following diagrams illustrate these two uses.
SNAP PAC Brains as Part of a Distributed SNAP PAC System
The following diagram shows only basic SNAP PAC System capabilities using free PAC Project Basic
software. For information on additional capabilities, such as communication with OPC clients,
databases, and third-party systems, see form #1696, the
SNAP PAC System Data Book
.
SNAP PAC S-series controller
running PAC Control strategy
PC used for PAC Display HMI
PC used to develop
PAC Control strategy
Distributed SNAP PAC brains and I/O
Et
herne
t net
w
ork