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2 6 6 H S H MODBUS TR A N S M IT TE R |
P R E SSU R E/ T EM P ER AT U R E M U LT I VA R I A B L E | O I/ 2 6 6 H SH M T- EN R E V. A
A - Transmitter
B - Supply unit (communication
resistor not provided in supply
unit)
Figure 20: Communication setup with handheld terminal
Figure 21: Connection examples with communication resistor in the connection line
A - Transmitter
B - Supply unit (communication
resistor not provided in supply
unit)
7.12 Configuration with the PC/laptop
or handheld terminal
A graphical user interface (DTM) is required for
configuration of the transmitter via PC or laptop. For
operating instructions, please refer to the software
description.
The 266 transmitters can be configured by either one of
the following device.
— Hand Held terminals like the ABB 691HT, ABB
DHH800-MFC, Emerson Process 375 and 475
provided the 266 EDD has been downloaded and
enabled in the terminal.
— ABB Asset Vision Basic, a new free of charge
software configurator downloadable at www.abb.
com/Instrumentation.
— Any DTM based software for HART instruments
configuration provided it is compatible with EDD or
DTM.
You can use a handheld terminal to read out or configure/
calibrate the transmitter. If a communication resistor is
installed in the connected supply unit, you can clamp the
handheld terminal directly along the 4 ... 20 mA line. If no
communication resistor is present (min. 250 Ω), you will
need to install one in the line. The handheld terminal is
connected between the resistor and transmitter, not
between the resistor and supply unit.
7.14