
Chromalox Instruments and Controls
A-51643 Rev. 6 10/06/03 8
3.5 Input Register Assignments
Input registers are intended for read only information and functions that cannot or should not be
controlled remotely. Much status information is mapped as holding registers so that operations can be
controlled remotely. Examples are control output commands, ramp/soak status (run, hold, stop), and
ramp/soak program number.
Table 5: Protocol
TM
Plus Input Register Address Map
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Association or
Range
Control Loop Input Registers
-1 = underrange, 0 = in range, 1 = overrange
-1 = underrange, 0 = in range, 1 = overrange
value has an implied decimal pt. of 1
Illegal, Reserved standard reg.
Timer/Profile Input Registers
Timer/Ramp/Soak Interval Time
Remaining
Time remaining in ramp/soak interval
Number of loops remaining in the ramp/soak program.
Ramp/Soak Interval Indicator
0 = ramp interval of segment, 1 = soak interval of
segment
Illegal, Available to application
Number of processor resets.
Number of power down interrupts.
Bits 0-3 = Alarms 1-4. Bit value: 0 = Off, 1 = On
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