Hart Configuration; Hart Connections - Presys TA-60NL Technical Manual

PRESYS
 Instruments
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2.2 - HART Configuration
The TA Series Calibrators can be used to read and set parameters in devices that
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have HART Communication
communication between master (in this case, the TA Calibrator) and the slave (field
instrument) superimposed on the 4-20 mA analog signal. To access this function from
the main menu, select the HART
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The HART
calibrator has three versions: NH (without HART
Calibrator) and FH (Full-HART
The CH option has basic and universal commands for HART
(zero, span, trim mA etc.) that allow you to adjust the range of the instrument, monitoring
the primary variable, current adjustment etc. The FH option, in addition to basic and
universal commands, is provided with the DD library (Device Description) from
FieldComm Group and allows the setting of specific parameters of each instrument.
The following description is valid for CH and FH options.
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2.2.1 - HART Connections
To the connections shown in Figures 19 and 20, use the mA INPUT + HART
option and INTERNAL RESISTOR enabled. In this mode, the 250  resistor is activated
internally in series with the calibrator mA input. The calibrator can measure current from
the transmitter and also read and set parameters via HART
enabled, an external resistor of at least 150 Ω must be inserted in series with the mA
input. To power the transmitter, can be used TPS source (Fig. 19) or an external source
(Fig. 20).
Fig. 19 - Transmitter Powered by the Calibrator Itself (TPS)
mA INPUT + HART
Protocol.
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option.
Communication of TA Calibrators is an optional module. The
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configurator with DD library).
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(Internal Resistor Enabled)
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The HART Protocol
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Communication), CH (HART
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. If the internal resistor is not
TA-60NL
allows digital
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communication
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