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LN-9214-00.2
Connections
Connections
Connections
Connections
Connections
PLC I/O:
PLC I/O:
PLC I/O:
PLC I/O:
PLC I/O:
3 position pluggable
terminal strip on DAIF at
backplane connector
Module I/O:
Module I/O:
Module I/O:
Module I/O:
Module I/O:
96-pin DIN 41612
connector
Diagnostic:
Diagnostic:
Diagnostic:
Diagnostic:
Diagnostic:
10-pin flat cable connect-
or on DAIF
Digital Node Adapter - Introduction
INTRODUCTION
INTRODUCTION
INTRODUCTION
INTRODUCTION
INTRODUCTION
Environmental / Physical
Environmental / Physical
Environmental / Physical
Environmental / Physical
Environmental / Physical
Temp. Operating:
Temp. Operating:
Temp. Operating:
Temp. Operating:
Temp. Operating:
0
o
to 55
o
C
Storage:
Storage:
Storage:
Storage:
Storage:
-40
o
C to 85
o
C
Humidity:
Humidity:
Humidity:
Humidity:
Humidity:
95% Non-Condensing
Size:
Size:
Size:
Size:
Size:
100 x 160mm
Eurocard module,
35mm wide
SPECIFICA
SPECIFICA
SPECIFICA
SPECIFICA
SPECIFICATIONS
TIONS
TIONS
TIONS
TIONS
GENERAL DESCRIPTION
GENERAL DESCRIPTION
GENERAL DESCRIPTION
GENERAL DESCRIPTION
GENERAL DESCRIPTION
Each Node Adapter Module can be character-
ized by the same basic block diagram. This
has three parts: (1) RIO interface, (2) central
processor, and (3) input/output circuits.
The RIO interface contains some Allen-Bradley
(A-B) components which are licensed to ITW.
These are designed specifically to communicate
with the proprietary protocol of the RIO serial
link. The central component of this block is an
application specific IC (ASIC) which is capable
of formatting the RIO information for use by the
central processor. The actual termination of the
RIO cable is made to an Interface Board at the
rear of the Node Adapter Module location. An
82 Ohm resistor is provided on the Interface
Board to terminate the RIO cable. Where the
RIO cable is daisy-chained to more than one
Node Adapter, only the last connection point in
the daisy-chain should be terminated by moving
the associated switch to the “TERM” position.
The core of the central processor is an 8032 mi-
croprocessor which communicates with the A-B
ASIC. The 8032 provides an RS-422 port from
which diagnostic functions are accomplished
via internal “debugger” software. The main soft-
ware program, which includes the “debugger”
functions, is contained in an Erasable Program-
mable Read-Only Memory (EPROM). The
EPROM’s for each Node Adapter are of course
unique for its application.
The RIO interface and central processor hardware
blocks for each Node Adapter are very similar.
The similarity ends at the input/output circuits, as
they are unique for each module. In each, some
data processing circuitry transfers information
between the central processor and the necessary
input/output devices. Depending on the Node
Adapter Module, these devices may be A/D
convertors, D/A convertors, data bus managers,
multiplexer or demultiplexers.
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Summary of Contents for 75584
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