Overview of the SPI 3
8
Trebing & Himstedt | SPI 3 | MODBUS RTU
Overview of the SPI 3
1
Power supply connections
2
PROFIBUS interface
3
Serial interface
4
Stop lever for top-hat rail
5
Turn-switch for PROFIBUS address
6
Display elements
Connections and interfaces
– Power feed
– 24 V Screw terminal for external 24 V power supply
– GND Signal ground terminal
– PE Protective ground terminal
– PROFIBUS interface
– Serial interface
(RS232, RS422 or RS485 see label on SPI 3)
Mounting the device
– Stop lever
for releasing/fixing the SPI 3 from/on a 35 mm DIN top-hat rail (top-
hat rail not included in delivery)
Operating elements
– Two rotary switches
for setting the PROFIBUS address
– Switch for setting the tens value
– Switch for setting the unit value
232
24V
GND
PE
422
4
85
Station
RUN
SERIAL-PROFIBUS-INTERFACE SPI 3
PB
TX
x
10
x
1
RX
2
4
3
6
5
1
1
2
3
4
5
