Electrical installation
GasEye Cross Duct
Operating instructions, 05/2021
103
ALARM10.HYSTERESIS
0x170
368 16 -bits of floating point value (first
part)
Alarm hysteresis value
0x171
369 16 -bits of floating point value
(second part)
Alarm hysteresis value
HMI.PASSWORD
0x172
370 HMI pin need to change parameters
from HMI panel (value range 0-
9999)
Table 8. Scaling to integer value example (0-27648).
System
Gas
Concentration
Transmission
AI
AO
Description
Integer Hexadecimal
0 ppm to
10 ppm
0% to 100%
4mA to 20mA 4mA to 20mA
32767
7FFF
11.851 ppm
118.51 %
22.96 mA
22.96 mA
Overflow
32512
7F00
32511
7EFF
11.759 ppm
117.59 %
22.81 mA
22.81 mA
Overshoot
range
27649
6C01
27648
6C00
10 ppm
100 %
20 mA
20 mA
Nominal
range
20736
5100
7.5 ppm
75 %
16 mA
16 mA
1
0001
0.00036 ppm
0.0036 %
4 mA + 578.7
nA
4 mA + 578.7
nA
0
0000
0 ppm
0 %
4 mA
4 mA
-1
FFFF
Undershoot
range
-4864
ED00
-1.759 ppm
1.185 mA
1.185 mA
-4865
ECFF
Underflow
-32768
8000
Table 9. Holding Registers (Function 0x3 0x6 0x10).
Register Name
Register
address
(hex)
Register
address
(dec)
Comments
PROCESS.TEMP_IS
0x00
0 Process temperature input signal
selection
PROCESS.TEMP_MANUAL_VALUE 0x01
1 16 -bits of floating point value (first
part)
Process temperature manual value
0x02
2 16 -bits of floating point value
(second part)
Process temperature manual value
PROCESS.PRESS_IS
0x03
3 Process pressure input signal
selection
PROCESS.PRESS_SENSOR_TYPE
0x04
4 Pressure sensor type selection
(absolute/ gauge)
