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Introduction, Discrete bit inputs – Rockwell Automation 5370 CVIM Communications Manual User Manual

Page 146

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A–B

B

Appendix

B–1

Discrete IIO Results Bits
(Host Input & Output Bits)

This appendix lists the function of both the discrete bit inputs and outputs.
These bits can be accessed through the Remote I/O port and Pyramid
Integrator backplane. You cannot manipulate these bits through the RS–232
ports (A or B) but you can perform many of their functions.

With each inspection that the CVIM module performs, individual bits are set.
There are 128 bits that can be set as inputs to a host device. These bits (part
of the inspection results) indicate:

Configuration faults.

Module Busy flag.

Missed Trigger flags.

Results Valid flags.

Inspection Tool Pass/Fail/Warning flags

Note: If you are using the Remote I/O link, the bits for inspection tool
pass/warning/fail apply to either toolset 1 or toolset 2. You select which
toolset by setting bits 4 and 5 in word 3 of the discrete output bits.

Note: For your convenience, we have provided bit numbers for both a PLC
(octal) and Pyramid Integrator (decimal).

Note to PLC–2 Users: When you use any PLC–2 family processor with the
CVIM node adapter, you should understand the operation of the PLC Block
Transfer Done bits for Read and Write instructions. PLC–2 family processors
use the input image table for these bits all other PLCs can specify integer
files for this function. This means that a PLC–2 user must use proper
programming techniques to avoid confusion between the following bits:

CVIM discrete I/O input word 0, bit 6 (data valid toolset #1) and bit 7
(data valid toolset #2).

PLC–2 family input image table word 0, bit 6 (BTW done bit) and bit 7
(BTR done bit).

Table B.1 lists the discrete bit inputs.

Introduction

Discrete Bit Inputs