GE GFK0579B Scanner User Manual


 
7
111Chapter 7 Remote Drop I/O Data
Remote Drop Data in Register Memory
If Series Six or Series Five register memory is used for remote drop data, an amount is
required that is equal to the total number of bytes of input data PLUS output data. The
data is stored beginning at the assigned register reference. The sequence is: discrete
inputs, then analog inputs, then discrete outputs, and analog outputs last. Data
lengths are equal to the amounts of %I, %AI, %Q, and %AQ configured for the Remote
I/O Scanner. For example, a remote drop has:
two 16–circuit discrete input boards (total of 32 input bits)
one 4–circuit analog input board (total of 64 input bits)
four 16–circuit discrete output boards (total of 64 output bits)
two 4–circuit analog output boards (total of 32 output bits)
(This is the same set of boards used in the I/O Table example). If the beginning
Reference Address assigned to the Remote I/O Scanner were 0001, Register Table
contents would be:
R0001 = 16 inputs from 1st discrete input module
R0002 = 16 inputs from 2nd discrete input module
R0003 – R0006 = 4 inputs from analog input module
R0007 = 16 outputs for 1st discrete output module
R0008 = 16 outputs for 2nd discrete output module
R0009 = 16 outputs for 3rd discrete output module
R0010 = 16 outputs for 4th discrete output module
R0011 – R0014 = 4 outputs for 1st analog output module
R0015 – R0018 = 4 outputs for 2nd analog output module
R
e
REGISTER 00029 (nickname) EQUALS 0101101001011001
00010 29811 29297 28783 28269 27755 23423 23434 34534 34535 2812
00020 34534 23455 03466 21234 13565 17983 01344 23454 01245 2234
00030 16344 23129 32365 35084 20346 17343 20485 16834 11465 0000
00040 24411 26784 14573 08689 03463 14623 24574 02344 12456 2245
00050 34254 23635 14573 08685 02675 11645 02341 23353 23435 1346
00060 16147 23149 38409 38371 48299 47746 27740 40174 61624 0020
Individual discrete inputs and outputs can be read 16 bits at a time on the Register
Table display by placing the cursor at the register that contains them. The bit values
will appear at the top of the screen next to the word, EQUALS.
Mixed Reference Table Displays
Customized Logicmaster displays can be created to show both discrete and analog
values at the same time, in a format that is meaningful when monitoring system
operations. The Logicmaster Software User’s Manual explains how to do this. In a Mixed
Reference Table, each line of the display can show either 64 input bits or ten registers.
To display discrete or register data properly on a mixed screen, the Remote I/O Scanner
should be configured for data lengths that match up with the discrete and register line
boundaries imposed by Logicmaster.