Micro800™ 4 Ch Universal Analog Input Module
9
Publication 0100189-04 Rev. C
Module Input Data
There are four input registers used to report data values for each of the
four channels and one register to report CJC sensor temperature.
Table 3 (Module Input Data)
Bit
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Ch0
Channel 0 Input Data
Ch1
Channel 1 Input Data
Ch2
Channel 2 Input Data
Ch3
Channel 3 Input Data
CJC
CJC Temperature in degrees C
Three separate status bytes are available to the user, one for open-
circuit detect, one for over/under range detection, and one for general
module status.
Table 4 (Open-circuit Status)
Bit
7
6
5
4
3
2
1
0
NU NU O_CJC U_CJC OC3 OC2 OC1 OC0
Bit 0 for channel 0 open wire.
Bit 1 for channel 1 open wire.
Bit 2 for channel 2 open wire.
Bit 3 for channel 3 open wire.
Bit 4 is for CJC under range indication.
Bit 5 is for CJC over range indication.
Bit 6 and Bit 7 are not used.
