84
SensyMaster FMT230, FMT250
THERMAL MASS FLOWMETER | OI/FMT230/250-EN REV. C
… 8 Commissioning and operation
… Interface description
Parameter range – Process Alarm
Modbus register
address
Parameter name
Data type [register length] /
value range
Description
0 to 95
Diagnosis register
TUSIGN8 [1]
Display of the alarm history.
See also chapter
Alarm status and alarm history status
on page 96.
The addresses indicated here are read only.
9012 Clear
Alarm
History
ACTION [1]
The writing of any value deletes the alarm history saved in the device.
… / ...Group Masking
4069 Maintenance
Required
TUSIGN8 [1]
0 - Masking deactivated
1 - Masking activated
Alarm messages are divided into groups. If masking is activated for a group (On),
no alarm occurs.
For more detailed information, see chapter
Diagnosis / error messages
on
page 94.
4068 Function
Check
4070
Out Of Specification
… / ...Alarm Limits / ...Application 1
… / ...Alarm Limits / ...Application 8
The numbers in brackets (1 to 8) in the Modbus register addresses correspond to the associated application 1 to 8.
7187 (1), 7233 (2), 7279
(3), 7325 (4), 7371 (5),
7417 (6), 7463 (7),
7509 (8)
Qm Massflow Min
TFLOAT [2]
0 to 110 %
Factory setting: 0 %
Setting of the alarm limits for the mass flow.
If the standard volume flow up-scales or down-scales the values set in the
parameters ‘Qm Massflow Min’ and ‘Qm Massflow Max,’ error message no. 1 ‘Mass
flow too high / low’ is generated.
7185 (1), 7231 (2), 7277
(3), 7323 (4), 7369 (5),
7415 (6), 7461 (7),
7507 (8)
Qm Massflow Max
TFLOAT [2]
0 to 130 %
Factory setting: 110 %
7195 (1), 7241 (2), 7287
(3), 7333 (4), 7379 (5),
7425 (6), 7471 (7), 7517
(8)
Qv@ Volumeflow Min
TFLOAT [2]
0 to 110 %
Factory setting: 0 %
Setting of the alarm limits for the volume flow.
If the volume flow up-scales or down-scales the values set in the parameters ‘Qv@
Volumeflow Min’ and ‘Qv@ Volumeflow Max,’ error message no. 2 ‘Volume flow too
high / low’ is generated.
7193 (1), 7239 (2), 7285
(3), 7331 (4), 7377 (5),
7423 (6), 7469 (7),
7515 (8)
Qv@ Volumeflow Max
TFLOAT [2]
0 to 130 %
Factory setting: 110 %
7205 (1), 7251 (2), 7297
(3), 7343 (4), 7389 (5),
7435 (6), 7481 (7),
7527 (8)
Tm Min
TFLOAT [2]
−
100 to 250 °C
Factory setting:
−
20 °C
Setting of the alarm limits for the measuring medium temperature.
If the measuring medium temperature up-scales or down-scales the values set in
the parameters ‘Tm Min’ and ‘Tm Max,’ error message no. 38 ‘Sensor temperature
too high / low’ is generated.
7203 (1), 7249 (2),
7295 (3), 7341 (4),
7387 (5), 7433 (6),
7479 (7), 7525 (8)
Tm Max
TFLOAT [2]
−
50 to 300 °C
Factory setting: 200 °C
