Rockwell Automation 5370 CVIM Communications Manual - Manual (Page 13)

2 Chapter
2–1
Introduction
In this chapter we provide you with an overview of the options for
communicating with the CVIM module. We also describe the types of data
that can be accessed or manipulated. The descriptions in this chapter will
enable you to determine the type of communications most suitable for your
application. You then can proceed to the chapter of this manual that describes
the selected option.
The result and command data that you can access with a host device is stored
in an area of Random Access Memory (RAM) inside the CVIM module.
Configuration data which controls the operating instructions for the CVIM
module is located in a separate area of memory which can be also be
accessed through a host device. Refer to Appendix A for an overview of
configuration/results memory. Appendix B, C, and D contain tables listing
the information stored in results and configuration memory locations.
The remainder of this chapter describes the various options you have for
accessing this information. Refer to Figure 2.1. In summary, your host device
will be linked to the CVIM module through one of the following ports:
•
Remote I/O (Node Adapter)
•
RS–232 Interface(s)
•
Pyramid Integrator Backplane
•
Local I/O Board
Note: The local I/O board has sixteen discrete I/O lines. Fourteen of these lines are
outputs only. One of the remaining lines is for input, and can be connected to a
presence–sensing device to trigger an inspection process. The other line is not used.
Chapter Objectives
How is Data Stored in
the CVIM Module?
How Does the Host Device
Read Configuration/Results
Information?