Basic Function Principles - Beckhoff KL4132 Documentation

Product overview
2.3

Basic function principles

The KL4132 analog output terminal generates signals in the range from -10 V to +10 V. The terminal
supplies the output voltage with a resolution of up to 16 bits. The output voltage is output electrically isolated
from the terminal bus level.
The LEDs indicate the operating state of the associated terminal channels.
• green Run LED:
◦ On: Normal operation
◦ Off: Watchdog timer overflow has occurred. If no process data are transmitted by the Bus
Coupler for 100 ms, the green LEDs go out. The output assumes a user-specified voltage (see
Feature register [} 30]).
Process data input format
In the delivery state the process data are shown in two's complement form (integer -1 corresponds to
0xFFFF).
Output value
-10 V
-5 V
0 V
5 V
10 V
Process data
The process data arriving from the Bus Coupler are output to the process:
Y_0 = B_a + A_a*X
Y_dac = Y_0
Y_1 = B_h + A_h * X
Y_dac = Y_1
Y_2 = B_w + A_w * X
Y_dac = Y_2
Y_1 = B_h + A_h * X
Y_dac = B_w + A_w * Y_1
Key
Name
X
B_a
A_a
B_h
A_h
B_w
A_w
Y_dac
The equations of the straight line are enabled via register R32 [} 30]
10
Process data
dec
-32767
-16383
0
16383
32767
(1.0) Neither user nor manufacturer scaling is active.
(1.1) Manufacturer scaling active
(1.2) User scaling active
(1.3) Manufacturer and user scaling active
(1.4)
Name
PLC process data
Hardware compensation offset
Hardware compensation gain
Manufacturer scaling: Offset
Manufacturer scaling: Gain
User scaling: Offset
User scaling: Gain
Output value for the D/A converter
Version: 3.0
hex
0x8001
0xC001
0x0000
0x3FFF
0x7FFF
Register
-
R17 [} 29]
R18 [} 29]
R19 [} 29]
R20 [} 29]
R33 [} 30]
R34 [} 30]
-
KL4132