PAGE 6 24 SEP 2003 MAN0703-01
3 ADVANCED SMARTSTIX PROGRAMMING
3.1 SmartStix I/O Module Device Classes
There are currently three SmartStix Analog I/O Module device classes (8, 9, and 10) that control and
monitor Analog I/O points and exchange Directed and Global Analog Data words with a Control Station
via the CsCAN Network.
Table 3 shows the three device classes along with the number of I/O points they contain and the number
of Directed and Global Data words they exchange. Note that the digital outputs are virtual and do not
correspond to physical outputs. They are used by the Analog module firmware to configure the individual
analog channels.
Example: Determining the class of a SmartStix module:
1. Identify the row containing the corresponding quantity of analog I/O in Table 3.
2. The device class is located in the same row along with the total number of words consumed
and produced for that device class.
Table 3 – SmartStix I/O Module Device Classes
Device
Class
Analog
Inputs
Analog
Outputs
Directed
Digital
Data
Words
Consumed
Global
Digital
Data
Words
Produced
Directed
Analog Data
Words
Consumed
Global Analog
Data Words
Produced
8 12 0 4 4 0 12
9 8 4 5 4 8 8
10 0 8 5 4 16 0
Device classes greater than 10 are reserved for future products.
The following terms are defined:
Consumed Data: Directed Data received by a SmartStix I/O Module from a Control Station
Produced Data: Global Data transmitted by a SmartStix I/O Module to a Control Station
Table 1 summarizes SmartStix I/O module consumed and produced data words. For advanced users,
the following sections describe the consumed and produced words in detail.
3.2 SmartStix I/O Module Consumed (Received) Directed Data
Table 4 – Consumed Directed Digital Data Word 1
16-bit Word
8-bit High Byte 8-bit Low Byte
Digital Output Control Data – Low Word
A16
M16
F15
M15
F14
M15
F13
M15
M12 M11 M10 M9 M8 M7 M6 M5 M4 M3 M2 M1
Table.5 – Consumed Directed Digital Data Word 2
16-bit Word
8-bit High Byte 8-bit Low Byte
Digital Output Control Data - High Word
S16 S15 S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1
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