
Chapter: Connectors GPIO
page 38 Beckhoff New Automation Technology CB2051
3.19 GPIO
The General Purpose Input/Output interface is made available through a 2x10 pin connector (JST B20B-
PHDSSLFSN, mating connector: PHDR-20VS). To make use of this interface the SIO2 unit (Winbond
W83627) must be programmed accordingly. Please refer to your distributor for information on available
software support.
Description Name Pin Name Description
5 volt supply VCC 1 11 VCC 5 volt supply
GP input/output 10 GPIO10 2 12 GPIO20 GP input/output 20
GP input/output 11 GPIO11 3 13 GPIO21 GP input/output 21
GP input/output 12 GPIO12 4 14 GPIO22 GP input/output 22
GP input/output 13 GPIO13 5 15 GPIO23 GP input/output 23
GP input/output 14 GPIO14 6 16 GPIO24 GP input/output 24
GP input/output 15 GPIO15 7 17 GPIO25 GP input/output 25
GP input/output 16 GPIO16 8 18 GPIO26 GP input/output 26
GP input/output 17 GPIO17 9 19 GPIO27 GP input/output 27
ground GND 10 20 GND ground
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