JUMO mTRON T Operating Manual page 35

Behavior on error
The behavior in the event of deviation above or below the measuring range (out of range) can
be configured. The settings made there also apply for probe/conductor breaks or probe/con-
ductor short-circuits. This results in a safe state for operation in the event of an error.
As long as the system is in "Run" state, the output signal delivers the following values in case
of an error (input signal returns an error value), depending on the configuration:
Signal type
0 to 20 mA
4 to 20 mA
0 to 10 V
2 to 10 V
1
Inverted output signal (zero point and end value are swapped)
With the setting "Last value", the last valid value is delivered in any case.
If the connection to the base unit is interrupted or if the system is in "Stop" state, the following
values are output, depending on the configuration:
Signal type
0 to 20 mA
4 to 20 mA
0 to 10 V
2 to 10 V
Limits according to NAMUR recommendation NE 43 (for information only):
Measurement information M
Failure information A
for deviation below measured value/short-circuit
("NAMUR Low")
Failure information A
for deviation above measured value/probe break
("NAMUR High")
Status after change of configuration
Modified parameters are incorporated immediately.
Behavior after power on
During the initialization phase of the module, the output signal adopts a value of 0 V or 0 mA.
After a few seconds, as soon as the module configuration was read, the output signal corre-
sponds to the value in "Stop" system state (depending on the configuration, see table).
The current value of the input signal is applied to the output only after complete initialization of
the system.
Output value at
NAMUR Low NAMUR High
--- ---
1 mA 22 mA
--- ---
0.5 V 11 V
Output value at
NAMUR Low NAMUR High
--- ---
1 mA 22 mA
--- ---
0.5 V 11 V
6 Configuration
Signal at o-o-r,
0 % to 100 %
0 mA to 20 mA
4 mA to 20 mA
0 V to 10 V
2 V to 10 V
Signal at o-o-r
0 mA
0 mA
0 V
0 V
Signal type 2 to 10 V
1.9 to 10.25 V
≤ 1.8 V
≥ 10.5 V
Signal at o-o-r,
0 % to 100 %;
1
inverted
20 mA to 0 mA
20 mA to 4 mA
10 V to 0 V
10 V to 2 V
Last value
0 mA
0 mA
0 V
0 V
Signal type 4 to 20 mA
3.8 to 20.5 mA
≤ 3.6 mA
≥ 21 mA
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