PX 30 and PX 120 Operating Manual
7-1
Technical Details
Operating Voltage
18 ...32 VDC
Rated Operating Voltage
24 VDC
Power Consumption
PX 30: average 3.5 W; PX 120: average 5.7 W
Inputs
PX 30: 16 inputs; PX 120: 24 inputs
In accordance with VDI 2880 page 2, 24 V=, no galvanic
isolation
Outputs
1 output to VDI 2880 page 2, protected against short
circuit and overload
Serial Interface
RS 232 (V24), 9-pin D-Sub-connector
Text Memory
32 KByte Flash-EPROM (standard); 64 KByte optional
Interference Resistance
Resistance to breaks in supply voltage: up to 20 ms;
Protection against overload: asymmetric up to 2 kV on
24 V supply, data, I/O and signal lines (RS 232 standard)
Electrostatic discharge: 8 kV
Operating Temperature
0 ... +55
0
C
Storage Temperature
-20 ... +70
0
C
Climatic Conditions
DIN 40040 Class F
Housing and Terminal
Front to IP 65; Text display mounted without seal: IP 50;
Protection
Text display mounted with seal: IP 64; Rear: IP 20
Display
Fluorescent display, alphanumeric, IBM character set;
PX 30: 5 x 7 dot matrix; PX 120: 5 x 12 dot matrix;
Character Height
PX 30: (2 lines of 20 characters): 5 mm
PX 120 (2 lines of 40 characters): 9 mm
Weight
PX 30: approx. 0.7 kg; PX 120: approx. 1.4 kg;
Connector Pin Assignment (V24)
PX 30 and PX 120 Text Displays can be driven serially through the V24 interface. The
interface parameters are set at:
• 9600 baud
• 8 data bits
• 1 stop bit on receive / 2 stop bits on reply
• no parity
Connection to the serial interface (V24-standard) is via a 9-pin SUB-D connector on the
rear of the unit. Pin layout is shown in the diagram below:
Appendix
1
NC
2
RxD
3
TxD
4
NC
5
GND
9
NC
8
CTS
7
RTS
6
NC
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