Components and Operation
Englisch, Revision 14, Date: 07.02.2017
18
4.2.3.2
Pin Allocations X1/X2/X3
This Profibus variant of the antenna offers up to two identical cable tails X1/X2 for Profi-
bus connections depending on whether a terminating resistor is included.
In addition there is a cable tail X3 for the power connection and the serial interface.
4.2.4
Positioning Pulse
The digital positioning output indicates the crossing of the center line of the antenna
in direction of travel (x direction). Its duration is adjustable within a millisecond pattern.
Both positioning connections are separately and not internally connected to +24 V or
GND, as a strict voltaic separation is essential for some of the systems. For safety rea-
sons, a 20 mA current limitation has been implemented in the antenna for these out-
puts. In case a 24 V output is required, contact No. 9 may be connected to +24 V and
contact No. 10 may be connected to GND via a 1 KOhm resistor.
Color
Allocation
Shield
Signal Ground
Green
Line A
Red
Line B
Shield
Table 6
Variant UA: Pin allocation of the Profibus cable tails X1/X2
Numeric Print
Allocation
1
+24 V DC (antenna)
2
GND (antenna)
3
+24 V DC (heater)
4
GND (heater)
5
+RX (RS 422)
6
-RX (RS 422)
7
+TX (RS 422)
8
-TX (RS 422)
9
+ Posi Pulse (see section 4.2.4 on page 18)
10
- Posi Pulse (see section 4.2.4 on page 18)
11
n. c.
Green-yellow
signal ground
Shield
Table 7
Variant UA: Allocation of the cable tail X3 antenna power supply/RS 422