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What gets mapped, I/o data, Diagnostic counters – ProSoft Technology CLX-APACS User Manual

Page 24

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Page

18 QTS-

CLX-APACS

March 2015

What gets mapped

I/O Data

APACS IOBUS discrete inputs and outputs are mapped to the input data on ControlLogix
connections from 0 upwards, as required. Discrete input and output data points consist of
a byte of data and are mapped to SINT data in the ControlLogix. The low bit in each
SINT corresponds to the value of the point (0 or 1, False or True).

APACS IOBUS analog inputs and outputs are mapped to the input data on ControlLogix
connections from 8 downward, as required. Analog inputs and outputs are mapped to
REAL data in the ControlLogix.

In addition, each discrete output, analog input and analog output has an associated status
byte. These are also mapped to SINT input data in the ControlLogix, in connections 0
and up.

Diagnostic Counters

QTS-CLX-APACS diagnostic counters are integers are mapped to ControlLogix input
data of type INT on connection 9.

Alias Name

Offset

Description

StatRxGood

0

Good packets received from the network

StatAbortErr

1

Bad packets, abort errors