Siemens IQ RADAR 300, Быстрый старт, Страница: 6 / 92

Page EN-4 SITRANS LR 300 – QUICK START MANUAL 7ML19985QA82
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English
SITRANS LR 300 Wiring
RUN Mode and PROGRAM Mode
The SITRANS LR 300 has two modes of operation: RUN and PROGRAM.
When installation is complete and power is first supplied to the SITRANS LR 300, it starts in
RUN mode and detects the distance from the instrument flange to the target in meters. This is
the default start-up display mode.
When you select PROGRAM mode, the SITRANS LR 300 stops responding to the process. It
stores the most recent measurement, and holds the associated readings and mA signal output.
The unit reverts to the parameter last addressed during the previous program session.
When you select RUN mode, the transceiver resumes operation. The reading and mA output
default to the last measurement taken. The reading and associated outputs migrate to the
current process level at a rate controlled by the measurement response (P003).
If the SITRANS LR 300 is left in PROGRAM mode for 10 minutes without input, it automatically
reverts to RUN mode.
RUN Mode Display
PROGRAM Mode Display
1
3
4
7
5
6
2
A
R
S
4
8
5
B
COM
L2/N
L1/+
O I
shield, installed on
IS version only
supply voltage ac or dc
HART/mA or
Profibus-PA
RS-485
Modbus, or Dolphin
protocol
= normal reading
= fail-safe operation
Reading Questionable, appears during fail-safe
operation
blinking “Heartbeat”,
indicates device is running
Percentage or Units,
dependent on parameter number
active
bar graph
representation of
material level,
0 to 100% of Span
Auxiliary Reading
confidence icons
Reading
blinking “Heartbeat”,
indicates device is running
parameter type
inactive
bar graph
EDIT icon indicates new value
being entered
parameter value
parameter number programming indicator
Percentage or Units,
dependent on parameter value
index value