Factory Calibration; Diagnostic Functions - Siemens SITRANS TW 7NG3242 Betriebsanleitung

Functions / Operation by HART

4.2.15 Factory calibration

It is possible to reset the transmitter to its exfactorystate. You can select the scope
of the recoverable parameters in a menu with SIMATIC PDM or the HART
communicator in five steps:
1. Resetting the factory basic data except for the following parameters:
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2. resetting the customer-specific sensor adjustment
3. resetting the customer-specific adjustment of the analog output
4. resetting the customer-specific alarm settings with the following parameters:
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5. resetting the customer-specific settings for the sensor error / limit value alarm
with the following parameters:
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4.2.16 Diagnostic functions

Communication with a HART interface enables numerous diagnostic functions to be
activated and evaluated.
The diagnostic concept of the SITRANS TW is such that a diagnostic warning can be
parameterized for diagnostic functions for monitoring limit values and a diagnostic
alarm for diagnostic functions for monitoring error states. The diagnostic warning and
diagnostic alarm can be output by:
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• Diagnostic warning The device transmits the diagnostic event that has
occurred via HART. The analog output value remains unchanged. A warning via
the built-in message relay (sensor error / limit value alarm) can be parameter-
ized.
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customer-specific sensor adjustment
customer-specific adjustment of the analog output
customer-specific alarm settings
customer-specific settings for the sensor error / limit value alarm
alarm type of the analog output
lower and upper alarm value of the analog output
lower and upper output limit of the analog output
lower and upper limit value limit
Hysteresis
switching delay
limit value alarm mode
alarm activation
HART communication
Analog output
message relay
Operating display (LED)
SITRANS TW
A5E00054075-05