Current output
Output mode: 4-20 mA
▼
Failure mode: 22 mA
▼
Min. current 3.8 mA
▼
Certain sensors are suitable for use according to IEC 61508.
For this use, you have to activate the menu item "SIL". This
influences the following menu items:
l Menu items "Current output" in "Failure mode", "Hold
value" and "20.5 mA" blocked
l "HART mode", "Multidrop" blocked
The default setting for "SIL" is "deactivated".
Note:
For such applications, 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.
7)
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.
5.5 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.
7)
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.
Functional safety (SIL)
HART mode
Introduction
Indicating and adjustment module PLICSCOM 23
Setup
27835-EN-070123
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