54
10-2. Changing logic
You can change the logic setting for all output signals except
for the STROBE signal.
If a COM terminal and the pin 28 are open, the signals are set
to negative logic. If they are short-circuited, the signals are set
to positive logic.
Pin 28
Logic
Open
Negative
Shorted
Positive
10.BCD Data Output (TD-260T AC(BCD) / TD-260T DC(BCD))
10-3. Equivalent circuit
Output equivalent circuit
TD-260T
+5V
Vcc
COM
Vext
Output data
Negative
logic
Positive
logic
0
Output transistor
(Output pin level)
OFF (H)
ON (L)
1
Output transistor
(Output pin level)
ON (L)
OFF (H)
Vce = 30V(max), Ic = 50mA(max)
Input equivalent circuit
When open collector is connected
IN
When transistor is connected
TD-260T
Approx.
10mA
+12V
Vcc
COM
Push Switch
ON when IN is high
CAUTION
<
Do not apply external voltages to the signal input circuit.
<
Use a contact device with 20 mA or more capacity.
Open
OFF
Shorted
ON
