BECKHOFF ET1100 - Manual (Page 55)

Pin Description
Slave Controller – ET1100 Hardware Description III-41
3.10.1 I/O Power Supply
The I/O power supply pins can be connected to either 3.3V or 5.0V (5.0V not recommended),
depending on the desired interface voltage. All power pins must be connected, and voltage
stabilization capacitors at V
CCI/O
/GND
I/O
power pairs are necessary.
Table 45: I/O power supply
Pin Pin name
C5 V
CC I/O
D5 GND
I/O
D3 V
CC I/O
D4 GND
I/O
J3 V
CC I/O
J4 GND
I/O
K5 V
CC I/O
J5 GND
I/O
K8 V
CC I/O
J8 GND
I/O
J10 V
CC I/O
J9 GND
I/O
F10 V
CC I/O
*
F9 GND
I/O
*
D10 V
CC I/O
D9 GND
I/O
E9 V
CC I/O
*
H4 GND
I/O
F3 V
CC I/O
K9 GND
I/O
H9 V
CC I/O
NOTE: These pins are most adjacent to the internal LDO – this should be taken into account for voltage
stabilization.