Hi there,
Interesting problem today. Been fiddling around with a Click PLC. I have an extension module for it. A combo discrete 8/8. I am trying to drive an LED with it. Problem is. It seems that I can only get 5V from the output.
First off the pin out simplified is
V+
Y1
Com
Wiring is V+ to Com and y1 ties into that line.
Here is what gives me 5V:
V+ : no connection
Y1 to LED
Com to ground.
With this setup i have a voltage drop of 4-5 volts across the led. and a drop of 19 v between Y1 and ground. I am very confused.
Note, if I use V+ to ground. The led stays on regardless of output state. Likewise, if i tie V+ to 24v. The led stays off regardless (also eliminates the voltage division.
My led is tied to +24V, so I need to tie the output to ground when it goes high.
More detailed pin layout
https://cdn.automationdirect.com/static/specs/c016cdd2.pdf
Interesting problem today. Been fiddling around with a Click PLC. I have an extension module for it. A combo discrete 8/8. I am trying to drive an LED with it. Problem is. It seems that I can only get 5V from the output.
First off the pin out simplified is
V+
Y1
Com
Wiring is V+ to Com and y1 ties into that line.
Here is what gives me 5V:
V+ : no connection
Y1 to LED
Com to ground.
With this setup i have a voltage drop of 4-5 volts across the led. and a drop of 19 v between Y1 and ground. I am very confused.
Note, if I use V+ to ground. The led stays on regardless of output state. Likewise, if i tie V+ to 24v. The led stays off regardless (also eliminates the voltage division.
My led is tied to +24V, so I need to tie the output to ground when it goes high.
More detailed pin layout
https://cdn.automationdirect.com/static/specs/c016cdd2.pdf