Solartron Mobrey 3595 4C, User Manual

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IMP Commands 3595 4C User Manual Part Two
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35952350 (CH01/AA)
CH LR
(CHannel Loop Resistance)
CH n LR
Where: n is an integer that defines the channel number, in the range 1
≤
n
≤
18
Function: Reports the loop resistance, between high and low , of a thermocouple on channel n.
Channel n must be configured as a thermocouple type ( MO de 310 – 3A4). If n is out of
range, the command does not return an error and is ignored.
Response: In Stream 3:
CH n LR <4-byte result>
The result is in kohms – no time lag.
CH UC
(CHannel Unit Conversion)
CH n UC m c e
Where: n is an integer that defines the channel number, in the range 1
≤
n
≤
18
m is an IEEE 754 floating-point number defining the slop of a line,
c is an IEEE 754 floating-point number defining a constant (y-axis catersian intersection)
e is an enable flag (1 = enable, 0 = disable)
Function: Used to convert a measured parameter into alternative units with the function:
y = mx + c
Where x is the input parameter and y is the output .
Notes:
1.
The input parameter is post Channel Mode. Therefore, if the required output is pressure
and the input is measured from a 4-20mA transmitter, two conversions are possible:
a. From a measured voltage across a precision resistor, through which the current flows
(unit conversion is post CHannel MOde voltage).
b. From a measured current, through a 100
Ω
precision resistor (unit conversion is post
CHannel MOde current).
2.
Once the measured parameter has been converted, it is no longer available (as current or
voltage for example)