35
9.
Next, using the up
⇑
and down
⇓
arrow keys, increase or decrease
the desired time of interval transmission (1 to 60 minutes).
10.
After completion of the time interval setting, press the
OK
function
key to initalize the changes.
11.
The unit will begin to transmit the measured data to the external
device at the set interval time.
Printer port connector pin-out is shown in TABLE 4-1.
TABLE 4-1. DOT MATRIX PRINTER PORT PIN-OUT
PIN NUMBER
DESIGNATION
SIGNAL DIRECTION
1
STROBE
OUTPUT
2
DATA
BIT
0
OUTPUT
3
DATA
BIT
1
OUTPUT
4
DATA
BIT
2
OUTPUT
5
DATA
BIT
3
OUTPUT
6
DATA
BIT
4
OUTPUT
7
DATA
BIT
5
OUTPUT
8
DATA
BIT
6
OUTPUT
9
DATA BIT 7 (MSB)
OUTPUT
10
ACKNOWLEDGE
INPUT
11
BUSY
INPUT
19-25 SIGNAL
GROUND
-----
Other pins are not used.
4.13.2. RS232 SERIAL DATA PORT
The serial port is located on the front panel of the instrument, and uses a
9-pin delta plug. The ASCII encoded characters are transmitted at the
19,200
baud rate, with
one start
bit,
8 data
bits,
1 stop
bit, and
no parity
.
The serial port can be directly interfaced to a terminal, a compatible serial
data acquisition system or COM ports on any personal computer.
Commonly used software programs such as Windows Terminal, Hyper
Terminal or PROCOMM can be used to collect the data from the
instrument.
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