Programmer's Reference Manual Intermec Fingerprint® v8.70.0 ...

PORTIN
Chapter —Program Instructions
Purpose Function reading the status of a port on a Serial/Industrial Interface Board.
Syntax PORTIN()
is the number of the port to be read:
IN ports (optical): 101-108 (301-308)
OUT ports (relay): 201-204 (401-404)
OUT ports (optical): 221-228 (421-428)
Remarks This function works with the Serial/Industrial Interface Board and is able
to read the status of 8 IN ports with optocouplers, 8 OUT ports with
optocouplers, and 4 OUT ports with relays. For information on how to set
the OUT ports, please refer to the PORTOUT statement.
A current can be lead through an optocoupler in each IN port:
• If the current is on, the PORTIN function returns the value -1 (true).
• If the current is off, the PORTIN function returns the value 0 (false).
This feature is intended to allow the execution of the Intermec Fingerprint
to be controlled by various types of external sensors or non-digital switches.
The status of the OUT ports, as set by PORTOUT statements, can also be
read by PORTIN functions.
Some printers, like EasyCoder PM4i can carry two Serial/Industrial Interface
boards. In this case, the ports on the inner board (that is, the board
closest to the CPU board) are specified by the low numbers (101-108,
201-204, and 221-228) while the ports on the outer board are specified by
the high numbers (301-308, 401-404, and 421-428).
Please refer to the documentation of the Serial/Industrial Interface Board
for more information.
Example The status of IN port 101 on a Serial/Industrial Interface Board decides
when a label is to be printed. The printing will be held until the current is
switched off:
10 FONT "Swiss 721 BT"
20 PRTXT "POWER IS OFF"
30 IF PORTIN (101) THEN GOTO 30
40 PRINTFEED
50 END
Intermec Fingerprint v8.70.0/v10.0.0 Programmer´s Reference Manual 1