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Description of the Inline Controller
7805_en_02
PHOENIX CONTACT
2-13
2.10
Internal basic circuit diagram
Figure 2-10
Internal basic circuit diagram (ILC 170 ETH 2TX)
Key:
The gray areas in the basic circuit diagram represent the electrically isolated areas:
A: Ethernet interface
B: Logic
C: I/O
Microprocessor
Converter
Protocol chip
LED
V.24 (RS-232) interface
Optocoupler
Transmitter
NPN transistor
RJ45 female connector
Ethernet switch
SD card holder (the SD card is not supplied as standard)
µ P
I B
Other symbols used are explained in the IL SYS INST UM E user manual.