User Manual version 2.1
OPEN (660) 120/140/150
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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 Pin # Signal
1OUT DATA0(SD4) 2IN DATA0(SD0)
3OUT DATA1(SD5) 4IN DATA1(SD1)
5OUT DATA2(SD6) 6IN DATA2(SD2)
7OUT DATA3(SD7) 8IN DATA3(SD3)
9GND 10 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: 206H
In_Data 0~3=SD0~SD3
Out_ Data 0~3=SD4~SD7
EXAMPLE:
10 REM Digital I/O example program
20 X = INP (&H206) REM INPUT Digital I/O port
for 4 bit
30 X = OUT (&H206) REM OUTPUT Digital I/O port
for 4 bit
60 END
100 Return
Port 206H Definition