Rockwell Automation Current Input Module User Manual
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4Ć4
4.1.1
A/D Data Registers (Registers 0 to 15)
Registers 0 to 15 hold the latest numeric data from configured analog
current input channels 0 to 15. This data has been filtered (50 or
60 Hz filters) and, if the cycle averaging option has been enabled,
averaged together. See figure 4.1. The data is in 15Ćbit signed integer
format. The data is displayed in engineering units specified by the
Maximum Scaling Value (register 24) and Minimum Scaling Value
(register 25). Unscaled values will range from 0 to 4095. If a channel
is not configured, its data is held at zero.
Register 0 = A/D Data from Channel 0
Register 1 = A/D Data from Channel 1
Register 2 = A/D Data from Channel 2
.
.
.
Register 14 = A/D Data from Channel 14
Register 15 = A/D Data from Channel 15
Figure 4.1 Ć A/D Data Register Assignments
4.1.2
High High Alarm Status Register (Register 16)
Register 16 indicates the current status of each configured channel's
High High alarm. See figure 4.2. A bit is set in this register whenever
a channel's input value exceeds the configured High High alarm limit.
The bit is reset when the input value returns to a level below or equal
to the configured limit.
Register 16
Bits 0Ć15
14 13 12 11 10 9
8
7
6
5
4
3
2 1
0
R
R
R R R R
R
R
R R
R
R R
R R R
Bit 5 = Channel 5
Bit 6 = Channel 6
Bit 7 = Channel 7
Bit 8 = Channel 8
Bit 9 = Channel 9
Bit 10 = Channel 10
Bit 11 = Channel 11
Bit 12 = Channel 12
Bit 13 = Channel 13
Bit 14 = Channel 14
Bit 15 = Channel 15
Bit 0 = Channel 0
Bit 1 = Channel 1
Bit 2 = Channel 2
Bit 3 = Channel 3
Bit 4 = Channel 4
15
Figure 4.2 Ć High High Alarm Status Register