Specifications

Analog Input Modules
166
31007715 6/2008
Input
Data Registers
The first and third STB ART0200 registers in the input block of the process image
are the data words. Each register represents either the temperature or the mV data
of the associated channel. The data has15-bit + sign resolution. The bit structure for
a data register is:
If a register holds temperature data, it represents it as degree C x 10 or
degrees F x 10. For example, if the channel data is 74.9 degrees C, the register
representing that channel reads 749 (in decimal) or 0x2ED (in hexadecimal). You
can configure degree C or degrees F in the module editor (see p. 160).
If a register holds mV data, it represents it as mV x 100. For example, if the channel
data is 62.35 mV, the register reads 6235 (in decimal) or 0x185B (in hexadecimal).
Input
Status Registers
The second and fourth STB ART 0200 registers in the input block of the process
image are the channel status registers for the two analog input channels. The eight
LSBs in each register represent the status of each input channel.
STB ART 0200 Data Register Format
15
14 13 12 11 10 9 8 7 6 5 4 3
21
0
0=+
1=-
Sign bit
2
14
2
12
2
11
2
10
2
9
2
8
2
13
2
2
7
2
6
5
2
4
2
2
2
0
1
3
2
2
STB ART 0200 Status Register Format
15
14 13 12 11 10 9 8 7 6 5 4 3
21
0
not used
a
lways set to 0
GSC
PDM
ORW
ORE
URW
URE
BWD
INT
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