Compact I/O expansion cable between cabinets - PLCS.net

kolyur · August 8th, 2012, 12:13 PM

I have a Micrologix 1500 system that I'd like to expand by using a 1769-PA2 power supply and 1769-CRL3 expansion cable. The problem is that the base and expansion racks need to be in separate cabinets, and the expansion cable has a large I/O endcap on both ends. I'd have to cut a large rectangular hole in both cabinets and use Roxtec-style cable entry seals for it to work as-is.

That is, unless the endcap could be removed from one end temporarily. Has anyone done this? The terminations are hidden by a seemingly removable plastic cover, and I can see at least part of a pluggable rectangular header underneath. I'm hesitant to tear into it unless I hear that it's been done successfully before.

califflash · August 9th, 2012, 08:47 AM

The end cap easily comes apart and the cable pulled through 3/4" conduit. I ran into the same problem. The cabinets will have to directly adjacent to one another. You will also have to take into consideration the right-left left-right expansion cables. Not he best way to do things but can be done.

kolyur · August 9th, 2012, 10:34 AM

Great, thanks for the tip. I will forge ahead.

August 8th, 2012, 12:13 PM	#1
kolyur Lifetime Supporting Member + Moderator Join Date: Oct 2004 Location: Wooster, Ohio Posts: 940	Compact I/O expansion cable between cabinets I have a Micrologix 1500 system that I'd like to expand by using a 1769-PA2 power supply and 1769-CRL3 expansion cable. The problem is that the base and expansion racks need to be in separate cabinets, and the expansion cable has a large I/O endcap on both ends. I'd have to cut a large rectangular hole in both cabinets and use Roxtec-style cable entry seals for it to work as-is. That is, unless the endcap could be removed from one end temporarily. Has anyone done this? The terminations are hidden by a seemingly removable plastic cover, and I can see at least part of a pluggable rectangular header underneath. I'm hesitant to tear into it unless I hear that it's been done successfully before.

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August 9th, 2012, 08:47 AM	#2
califflash Member Join Date: Jan 2011 Location: Bryan, TX Posts: 81	The end cap easily comes apart and the cable pulled through 3/4" conduit. I ran into the same problem. The cabinets will have to directly adjacent to one another. You will also have to take into consideration the right-left left-right expansion cables. Not he best way to do things but can be done.

August 9th, 2012, 10:34 AM	#3
kolyur Lifetime Supporting Member + Moderator Join Date: Oct 2004 Location: Wooster, Ohio Posts: 940	Great, thanks for the tip. I will forge ahead.

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