Hello Guest it is November 12, 2019, 11:11:02 PM

Author Topic: Should the IP/S sink current in the active low state?  (Read 3106 times)

0 Members and 1 Guest are viewing this topic.

Should the IP/S sink current in the active low state?
« on: September 06, 2013, 10:28:22 PM »
The opto 22 output modules I was hoping to use are activated when current can flow from the opto22 logic control pin to logic ground.  Can the IP/S output pins sink current when in the active low state?  If not, what does happen in active low?  It only needs to be able to sink 12 mA.

Thanks,

Bill

Offline Hood

*
  •  25,856 25,856
  • Carnoustie, Scotland
    • View Profile
Re: Should the IP/S sink current in the active low state?
« Reply #1 on: September 08, 2013, 10:07:57 AM »
I do not think you can sink with the CSMIO outputs.
Hood
Re: Should the IP/S sink current in the active low state?
« Reply #2 on: September 09, 2013, 01:32:15 PM »
I got a reply from the CS-Lab folks who continue to be helpful.  You're right.  With the opto 22 relays I have, it would be possible to use their +24V out to control the Opto relays, but the mounting board I have doesn't allow access to the appropriate pin.  I have G1 modules and a PB16T mounting rack.  Looking for an appropriate rack if one exists.

Thanks for your reply!

Bill