Hardware description
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | F +49 208 4952-264 | [email protected] | www.turck.com
12
3.3
Block diagrams
Fig. 5: Block diagram BL20-PG-EN-V3
Fig. 6: Block diagram BL67-PG-EN-V3
Service
USB
USB-
Host
Eth1
Eth2
U
SYS
U
L
U
L
GND
Switch
μC
5 VDC
24 VDC
RTC
(buffered)
NV-
RAM
Memory
Module bus
interface
Communikation
bus
Power bus
BL20 system bus
Service
USB
USB-
Host
Eth1
Eth2
U
L
GND
Switch
μC
5 VDC
24 VDC
V
0
V
I
V
sens
PE
GND
2
1
4
3
2
1
4
3
5
4
3
2
1
RTC
(buffered)
NV-
RAM
Memory
Module bus
interface
Communikation
bus
Power bus
BL67 system bus
Short circuit
protection