Operating Modes Of Lut400; Functions Of Lut400 - Siemens SITRANS PCS 7 Function Manual

SITRANS LUT400
6.1 Lut400
6.1.2

Operating modes of Lut400

The block can be operated using the following modes:
● On
● Out of service
"On"
You can find general information about the "On" mode in the On chapter.
"Out of service"
You can find general information about the "out of service" mode in the Out of service chapter.
The descriptions of the operating modes are identical for Lut400 and the APL; refer to the
Online Help for the standard APL blocks for information on them.
6.1.3

Functions of Lut400

The functions for this block are listed below.
Configuration data
The configuration data comprises units, limits, configuration of the 4 to 20 mA signal and HART
variables, scaling of the 4 to 20 mA signal, and calibration of the sensor. After a change is made
in the device, reading of configuration data must be triggered with "Read configuration data" in
the parameter view of the faceplate. If the parameters were read back before a complete
download to the PLC, the configuration does not need to be reloaded from the device.
All message limits of the Lut400 are transferred via acyclic services to the LUT400 when a
change is made to the corresponding block input and are then read back. The respective output
always shows the last readback value. You may also use a faceplate control to write the
configuration data.
150
Status bit Parameter
7 Effective signal 8 of the message block interconnected via EventTsIn
8 Message delay InL_AH_Lim
9 Message delay InL_AL_Lim
10 Message delay InFr_AH_Lim
11 Message delay InFr_AL_Lim
12 Message delay InL_ALIBLim
13 Message delay InL_ALOBLim
14 Collection of message delays
15 - 31 Not used
SITRANS Library for PCS 7
Function Manual, 05/2019, A5E35351976-11