Siemens LR 460 User Manual
7ML19985JM01
SITRANS LR 460 – INSTRUCTION MANUAL
Page 65
mmmmm
Pa
ra
ra
m
e
te
rs
4.2. AIFB2
(See AIFB1: the parameters for AIFB2 are identical.)
4.3. mA Output
The mA output is provided by Analog Input Function Block 2 (AIFB2). You can enter
a user-defined mA value, either for simulation, or to perform a mA Trim.
To set these parameters via PDM, see
or
4.3.1. Function
Allows you to set the mA output to one of three options including a user-defined
value.
To set the mA output via PDM, open the menu Device – Simulate AO.
4.3.2. Out value
A mA value derived from the ratio of current level to the range between Lower
Value and Upper Value.
4.3.3. Man Value
A user-defined mA value which can be used either for simulation, or to do a digital/
analog trim.
To set the mA Output via PDM, open the menu Device – Simulate AO and select
an option.
an option.
Handheld
programmer
values
programmer
values
AUTO
Uses the current measured value.
FIXED
The current can be set by the HART master only.
HART default is 4 mA.
HART default is 4 mA.
MANUAL
Uses a user-defined value input in
.
Values
Range: 3.8 to 20.5 mA.
Analog
Input
Function
Block 1
Input
Function
Block 1
Lower Value = 4 mA
(
Upper Value = 20 mA
(
y
x
mA OUT value = x x 16 mA + 4
y
measured
value