Input Registers - Honeywell TWM 9000 Supplementary Instructions Manual

TWM 9000

6.7 Input registers

Measurement and status values are read only and can be accessed as Modbus "Input Registers".
Also the result of a calibration procedure is accessed by an input register at Modbus Protocol
Address 20000. The type are one or more float values.
Function code is 04 (0x04).
Modbus protocol
address
30000
30002
30004
30006
30008
30010
30012
30014
30016
30018
30020
30024
30028
30032
30034
Input register 30018 is not used up to now. This is included to fill the gap between the float and
double float values and allows to read the full range of registers.
34-VF-25-22 iss.1 GLO Nov 09 US
Description and settings
flow speed [m/s] flow speed flow speed flow speed
3
volume flow [m volume flow volume flow volume flow /s]
mass flow mass flow mass flow mass flow [kg/s]
coil temperature [K] coil temperature
coil temperature coil temperature
conductivity [S/m] conductivity
conductivity conductivity
This value may not be measured.
Depending on register 42003.
0 = off (not measured)
1 = conductivity [S/m]
2 = conductivity + empty pipe (S) [S/m]
2 = conductivity + empty pipe (F) [S/m]
diagnosis value diagnosis value diagnosis value diagnosis value
This value may not be measured.
Depending on register 42011.
25 = off (not measured)
31 = electrode noise [m/s]
28 = flow profile [no unit]
21 = linearity [no unit]
8 = terminal 2 DC [Volt]
9 = terminal 3 DC [Volt]
Display Channel 1 Display Channel 1
Display Channel 1 Display Channel 1
Represents the value on the first line of
the first measurement screen in SI units
Display Channel 2 Display Channel 2
Display Channel 2 Display Channel 2
Represents the value on the first line of
the second measurement screen in SI
units
Operating time [s] Operating time Operating time Operating time
Not used, returns zero
3
Counter 1 Counter 1 [m Counter 1 Counter 1 ] or [kg]
3
Counter 2 Counter 2 [m ] or [kg]
Counter 2 Counter 2
3
Counter 3 Counter 3 Counter 3 [m Counter 3 ] or [kg]
Note: this counter is only available for
converter with IO 2!
long status sensor long status sensor long status sensor long status sensor
long status device long status device long status device long status device
Type
float
float
float
float
float
float
float
float
float
float
double float
double float
double float
byte [4]
byte [4]
www.honeywell.com/ps
MODBUS PROTOCOL
Number of registers
2
2
2
2
2
2
2
2
2
2
4
4
4
2
2
6
17