Analog Output Functions; Proportional Control Signal - Siemens TX-I/O TXM1.8D Functions And Operation

Application
Hardware
Configurable signal types
Description
Voltage output
Current output
Function
50/54
Siemens
Building Technologies
6

Analog output functions

6.1

Proportional control signal

For operation of devices with an analog input (0 ... 10 V, 4 ... 20 mA), e.g.:
– Damper actuators
– Valve actuators
– Proportional three-position converters
– Devices for analog display and acquisition
For connection to other systems, e.g. to transfer:
– Setpoints
– Sensor values
– Reference variables
The function uses one I/O point.
Signal type Range (over
range)
(Under / over
range)
AO 0-10V / 0 ... 10 V
Y10S (-0.05...10.6 V)
AO 4-20mA 4 ... 20 mA
/ Y420 (3.92...20.96 mA)
*) "Unreliable output" is displayed when the DC 24 V supply voltage is insufficient for a
Y10S signal.
I/O status LED
LO LED
Process
value
BUS
Block diagram of function
TX-I/O™ Module system – Functions and operation
Analog output functions
Reso-
I/O LED
lution
1 mV
variable
1 µA
variable
Local override
Signal Processing
AO Signal
(Y10, Y420)
Error
LCD
indication
X X X
variable
X X
variable
LCD
Field
device
CM110561en_08
2018-10-25