Hardware reference guide

I/O Modules
504
35013379 02 October 2007
I/O Map Status Byte
Overview This Quantum I/O map menu entry allows you to assign the 3x register that defines
the start of a table in which I/O-mapped module status is available. You may either
enter the 3x value, or the value 0 (indicating no choice). The value entered is
displayed in the summary information on the top of the Quantum I/O Map. Modules
in a backplane report status (and fault) information in an 8-bit byte—therefore, one
word of the table conveys the status information for two modules.
The following figure shows an example of the Quantum report status and fault
information.
If you choose to display or develop a program using these values, the table/module
relationship is given in the following example:
Enter status reg( 0): 300001
Tme AS Quit
F5
OFF F9
QUANTUM
Re
x100 ms
Module Status Reg:
Number of Outputs:
: 1 Available:
300001-300002
32
189
Ref Output Ref Description
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com