Rockwell Automation Current Input Module - Manual (Page 24)

4Ć6
4.1.5 Low Low Alarm Status Register (Register 19)
Register 19 indicates the current status of each configured channel's
Low Low alarm. See figure 4.5. A bit is set in this register whenever a
channel's input value is less than the configured Low Low alarm limit.
The bit is reset when the input value returns to a level equal to or
abovetheconfigured limit.
Register 19
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 4.5 Ć Low Low Alarm Status Register
4.1.6 Out of Range Status Register (Register 20)
Register 20 indicates the current status of each configured channel's
Out of Range alarm. See figure 4.6. A bit is set in this register
whenever a channel's A/D input value is outside of the range of
3.7 mA to 20.3 mA. The bits in this register are not latched
automatically. If you want a bit to belatched thefirst timea value
goes out of range, you must latch it through the application program.
If an input is identified as being out of range, the most probable
causeis that a wirebetween thetransmitter and themodulehas
either not been properly connected or has been broken.
Register 20
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
Figure4.6 Ć Out of RangeStatus Register