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User Manual version 2.1
6.2.2.5.
CN7: Digital I/O Connector
The CN7 is a 10 pin digital I/O connector.
CN7: DIO Connector pin assignment
Pin # Signal
1
OUT DATA0(SD4)
3
OUT DATA1(SD5)
5
OUT DATA2(SD6)
7
OUT DATA3(SD7)
9
GND
The PC 660A3 DIO can be used for the system's simple
automation control needs. The digital I/O can be
configured to control the opening of a cash drawer or to
sense the warning signal of an Uninterrupted Power
System (UPS) or to do the store security control.
The Digital I/O is of TTL interface. It is controlled via
software programming;
Digital I/O Programming
Input/output address:
In_Data 0~3=SD0~SD3
Out_ Data 0~3=SD4~SD7
EXAMPLE:
10
REM Digital I/O example program
20
X = INP (&H206)
30
X = OUT (&H206)
60
END
100 Return
Port 206H Definition
6-74
Pin #
Signal
2
IN DATA0(SD0)
4
IN DATA1(SD1)
6
IN DATA2(SD2)
8
IN DATA3(SD3)
10
GND
206H
REM INPUT Digital I/O port
for 4 bit
REM OUTPUT Digital I/O port
for 4 bit
OPEN (660) 120/140/150
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