wrote in message
...
On Mon, 12 Jun 2017 18:01:07 -0400, "Jim Wilkins"
wrote:

"rangerssuck" wrote in message
...
On Monday, June 12, 2017 at 12:09:01 PM UTC-4, googlemyass wrote:
On 6/9/2017 3:00 PM, rangerssuck wrote:
I'm working on interfacing a PLC to an existing machine that's
full of relays. I got to thinking that it would be a real time
saver if I had a relay breakout board of sorts. What I'm
picturing
is a relay base (in this case an 8 pin rectangular that plugs
into
an 11 pin socket) that breaks out into screw terminals.

The effect would be like piggybacking another socket on top of
the
original. That would allow pre-wiring a lot of stuff and
minimizing downtime, as well as making the modifications easily
reversible.

So, does such a device exist?

like this?
https://www.amazon.com/POTTER-BRUMFI...SIN=B06Y2GCZ22

No, not like this. What you suggested is a relay socket - I really
thought I had made it clear that I'm looking for something that will
plug into an already existing relay socket, and bring the
connections
out to screw terminals.

For the third, fourth or fifth time: I work on lots of machines that
have cabinets loaded with this sort of relay socket (with relays
plugged in). I upgrade these machines by adding PLCs in place of the
relays. It would be a good thing if I had the ability to just plug
my
wiring into the already existing relay sockets.

Therefore, I'm looking for either a male plug shaped like the relay
base that would plug into the socket you linked to and provide a
duplicate set of screw terminals; or even better, a socket with the
female terminals (and screw terminals) on top and male terminals
(like
on a relay) on the bottom so that the device could plug int the
existing socket , provide an extra set of screw terminals AND
optionally have a relay plugged into it. So it sould sandwich
between
the original socket and the original relay.

I'm not sure how to describe it any more clearly.

================
Similar in concept to this?
http://www.ebay.com/itm/Octal-Tube-T...-/142407703229


If you have enough of a requirement for them, it would not be
terribly
expensive to have a couple hundred PC boards made up to accept pc
board terminal blocks like:
http://www.globalspec.com/learnmore/...erminal_blocks
to connect your wires to, and PC mount blade type power connectors
like
https://www.google.ca/search?q=pc+bo... 1497314425603.
arranged to fit the relay socket. I've had similar boards made up,
populated with the correct terminals for something like $10 - $15
each
in quantities of 100 about thirty years ago. The ones I had made
were
to convert the connections of an odd-ball CD RON drive to accept a
standard cable connector.
Make up a few hundred and sell them to your competition - - - -

I wouldn't design the board until I had samples of the parts in hand
to measure, and would make it double sided so the blades and socket
are soldered on the opposite side to retain them, unless you can
jockey the socket pins and blades into the same holes to make an
in-line extender. That might take some experimenting with the parts
and blank board material, and perhaps a call to the board fabricator
to find out what you can and can't do or will pay more for, known as
the design rules. For example you may have a choice of routed edges,
sheared edges or a larger panel of boards you break apart along rows
of perforations.

-jsw