C
Hi all
As you know I am designing an open hardware project to provide a PLC form factor, PC compatible machine. I have a few questions regarding preference on terminals today.
I have used some of the Beckhoff stuff with spring terminals. It seems to work wery well in our environment as I haven't had to go tightening
things up in almost two years.
The last Open Hardware project used shielded screw terminals. Most stuff still uses these types of terminals. I have had to occasionally tighten screws on various stuff, my terminal boards haven't been in service very long, but I expect they will eventually loosen also.
What's the verdict on spring vs screw. The spring terminals are cheaper and seem to work better although it's difficult to visually verfy the connection. The screws are traditional. Is this a criteria for selecting IO?
How about spring with or without levers?
What about pluggable strips, are these a make or break feature?
Regards
cww
As you know I am designing an open hardware project to provide a PLC form factor, PC compatible machine. I have a few questions regarding preference on terminals today.
I have used some of the Beckhoff stuff with spring terminals. It seems to work wery well in our environment as I haven't had to go tightening
things up in almost two years.
The last Open Hardware project used shielded screw terminals. Most stuff still uses these types of terminals. I have had to occasionally tighten screws on various stuff, my terminal boards haven't been in service very long, but I expect they will eventually loosen also.
What's the verdict on spring vs screw. The spring terminals are cheaper and seem to work better although it's difficult to visually verfy the connection. The screws are traditional. Is this a criteria for selecting IO?
How about spring with or without levers?
What about pluggable strips, are these a make or break feature?
Regards
cww