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Chapter 4
Analog Block Applications Using
Block Transfers
Word
Word 25
Word 26
4-6
Decimal Bit
(Octal Bit)
High alarm level for input channel 3. When the input value for this channel is greater than the
Bits 00 15 (00 17)
high value, the corresponding high alarm bit is set in the BTR.
Alarm deadband for input channel 3. This field creates a hysteresis effect on the low and high
alarms. For an alarm condition to be removed, the input signal must go above the low alarm
Bits 00 15 (00 17)
limit or below the high alarm limit by an amount equal to the specified deadband. Alarm
deadband values must be less than or equal to one half the difference of the high and low
alarm values.
Table 4.C
Filter Time Selection
Filter Time
Filter Time
Default no filter
Do not use.
200ms
300ms
400ms
500ms
600ms
700ms
800ms
900ms
1000ms
1100ms
1200ms
1300ms
1400ms
1500ms
Description
Bit Settings
Bit 03
Bit 02
Bit 01
Bit 00
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
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