B
BIGEYE
We have an Allen Bradley PLC programmed by others. I have two analogue
inputs connected and their inputs are programmed to a SCP Scale with
parameters block.
The two 4 to 20 mA inputs are from gas monitors ant the range of the
monitors is 0 to 90 parts per billion. Both inputs are the same and perform
the same functions.
However, both SCP blocks are scaled differently and ask if one of them is
incorrect.
4 to 20 mA input = 0 to 90 PPB.
Block 1 is programmed as
Input min = 3277
Input max = 16384
Scaled min = 0
Scaled max =90
Block 2 is programmed as
Input min = 3277
Input max = 16384
Scaled min = 0
Scaled max =900
Appreciate any advice.
TIA
inputs connected and their inputs are programmed to a SCP Scale with
parameters block.
The two 4 to 20 mA inputs are from gas monitors ant the range of the
monitors is 0 to 90 parts per billion. Both inputs are the same and perform
the same functions.
However, both SCP blocks are scaled differently and ask if one of them is
incorrect.
4 to 20 mA input = 0 to 90 PPB.
Block 1 is programmed as
Input min = 3277
Input max = 16384
Scaled min = 0
Scaled max =90
Block 2 is programmed as
Input min = 3277
Input max = 16384
Scaled min = 0
Scaled max =900
Appreciate any advice.
TIA