WIKA IPT-11 - Manual (Page 20)

l In the menu item "Failure mode" under "Current output", the
parameters "Hold value" and "20.5 mA" are blocked
l In the menu item "HART mode", the function "Multidrop" is blocked
Note:
For such applications, it is absolutely necessary to take note of "Safety
Manual".
HART offers standard and multidrop mode.
The mode standard with the fixed address 0 means output of the
measured value as 4 … 20 mA signal.
In Multidrop mode, up to 15 sensors can be operated on one two-wire
cable. An address between 1 and 126 must be assigned to each
sensor.
6)
In this menu item you determine the HART mode and enter the
address for multidrop.
HART mode
Standard
Address 0
The default setting is standard with address 0.
5 .4 Special functions - Profibus PA
The Profibus PA special functions are briefly described in this
paragraph. The respective range of functions of the indicating and
adjustment module is determined by the sensor and the sensor
software revision.
Menu section, basic adjustment
Level and pressure sensors operate as slaves on the Profibus PA. To
be identified as a bus participant, each sensor must have a unique
address. Each instrument is delivered with address 126. With this
address, it can at first be connected to an existing bus. However, the
address must be changed. This can be done in this menu item.
Sensor address
126
6) The 4 … 20 mA signal of the HART sensor is switched off. The sensor
consumes a constant current of 4 mA. The measuring signal is transmitted
exclusively as digital HART signal.
HART mode
Introduction
Sensor address
20 Indicating and adjustment module for IPT-1* sensors
5 Set up
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