Operating instructions

AMC-DTR Sensor Transmitter User Manual
29
Memory Floating Point:
Note: Returned as 15bit plus sign 2s complement with +/- 5% over/underrange applied. Consider
over/underrange when scaling values to be displayed at the workstation. The following equation may be
used to determine a value for display.
Display Value =
MODBUS Value [ (Span Value -Zero Value) 1.1]
+ {Zero Value - [(Span Value - Zero Value) .05]}
32767
FP Value Chan 1 33001 4 NA
FP Value Chan 2 33002 4 NA
Memory ASCII Strings:
User Info Chan 1 40401-40408 3 NA
User Info Chan 2 40409-40416 3 NA
16 ASCII characters (2 per register) assigned to the unit identifier read as bytes.
Chan 1 ASCII Reading 40417-40419 3 NA
Chan 2 ASCII Reading 40420-40422 3 NA
6 ASCII characters (2 per register) reflecting the display readout.
EUNITS Chan 1 40423-40427 3 NA
EUNITS Chan 2 40428-40432 3 NA
10 ASCII characters (2 per register) assigned to the engineering units read as bytes.
Byte Variables:
PreAmp/Gain Ch1 40433 3 NA
PreAmp/Gain Ch2 40434 3 NA
2 bytes representing Pre Amp (HiByte) and PGA (LoByte) settings.
Firmware Version:
Version 40435-40436 3 NA
4 ASCII characters (2 per register) reflecting the firmware version.
Memory Reals:
Note: Real value represents float value without the decimal point such as 123.4 is returned as 1234.
Decimal devisor is returned as 1, 10, 100, or 1000 for decimal position of 1, 2, 3, or 4, where 123.4 would
return the value 10.
Chan 1 Cal Zero Real 41001 4 NA
Chan 1 Cal Zero Devisor 41002 4 NA
Chan 1 Cal Span Real 41003 4 NA
Chan 1 Cal Span Devisor 41004 4 NA
Chan 1 Zero Real 41005 4 NA
Chan 1 Zero Devisor 41006 4 NA
Chan 1 Span Real 41007 4 NA
Chan 1 Span Devisor 41008 4 NA
Chan 1 Fault Real 41009 4 NA
Chan 1 Fault Devisor 41010 4 NA
Chan 1 Alarm 1 Real 41011 4 NA
Chan 1 Alarm 1 Devisor 41012 4 NA
Chan 1 Alarm 2 Real 41013 4 NA
Chan 1 Alarm 2 Devisor 41014 4 NA
Chan 1 Alarm 3 Real 41015 4 NA
Chan 1 Alarm 3 Devisor 41016 4 NA
Chan 1 Manual Gain Real 41017 4 NA
Chan 1 Manual Gain Devisor 41018 4 NA