Rockwell Automation Current Input Module - Manual (Page 28)

4Ć10
4.1.15 LowAlarm Register (Register 29)
Register 29 defines the Low alarm limit. If a channel's input value is
less than this limit, the channel's correspondingbit in register 18 is
set to one. The value in register 29 is a 15Ćbit signed integer. This
value must be in engineeringunits if scalingis used. If scalingis
used, this value must be smaller than the Maximum ScalingValue
(register 24) and equal to or larger than the Minimum Scaling Value
(register 25). Unscaled data can range from 0 to 4095.
If register 29 does not contain an alarm value less than the High
alarm value, a configuration error will result in register 22. At
powerĆup, the register is set to a default value of 10.
4.1.16 LowLowAlarm Register (Register 30)
Register 30 defines the Low Low alarm limit. If a channel's input value
is less than this limit, the channel's correspondingbit in register 19 is
set to one. The value in register 30 is a 15Ćbit signed integer. This
value must be in engineeringunits if scalingis used. If scalingis
used, this value must be smaller than the Maximum ScalingValue
(register 24) and equal to or larger than the Minimum Scaling Value
(register 25). Unscaled data can range from 0 to 4095.
If register 30 does not contain an alarm value lower than or equal to
the Low alarm value, a configuration error will result in register 22. At
powerĆup, the register is set to a default value of 1.
4.1.17 Configuration Command Register (Register 31)
Register 31 defines what action should be taken if an input value is
out of range, line frequency averaging, the average AĆC line
frequency, and square root extraction. The register also contains the
Configuration Command Code. See figure 4.10.