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Old December 12th, 2017, 03:56 AM   #1
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cardosocea is offline
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Rockwell PLC's with Serial Ports

Hello gents,

I have an application where the cheapest communication link available is a radio telemetry system that works off of RS-232 protocol.
Our site only uses AB and looking into their catalog, it seems like there isn't many options for PLC's with Serial ports.

Do you guys still use them or how can I get around this? For one or two of the applications, a sort of gateway PLC would be feasible to collect all the data required from the installation (consisting of multiple PLCs) and sending it over the link. But on remote systems that have only one PLC, having a separate one just for a serial port is a bit of a waste.

Any ideas? I know there's some sort of Serial Port converters out there, but I personally prefer to have all enclosed as much as possible.
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Old December 12th, 2017, 04:57 AM   #2
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geniusintraining is online now
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We build custom cables for a Maxon radio, one of our customers uses the Maxon SD-174EL

I have never used them but this customer is very good so I'm sure they would only be using quality products they are also a member here so they maybe able to help further
__________________ PLC Communication Cables, PLC Trainers, Fluke Meters, MicroLogix, ControlLogix, Siemens, Allen Bradley and more... all your automation needs... ((NEW)) After Market 1784-U2DHP Allen Bradley USB to DH+ and Gateways
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Old December 12th, 2017, 05:36 AM   #3
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0151paul is offline
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We have some older systems we integrate to on RS232

We use a Point IO™ Module - RS232 Interface - 1734-232ASC

Seems to work well.
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Old December 12th, 2017, 06:03 AM   #4
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travispedley is offline
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We use these alot, they're cheaper than in-rack modules and they work just fine.
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Old December 12th, 2017, 08:21 AM   #5
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Mispeld is offline
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Originally Posted by 0151paul View Post
We have some older systems we integrate to on RS232

We use a Point IO™ Module - RS232 Interface - 1734-232ASC

Seems to work well.
+1 for the 1734-232ASC

There are also products from Prosoft that we have positive experience with.

Prosoft Rockwell In-Chassis

Of course, there is the single port available on some PLC-5 and L6 and earlier ControlLogix processors.
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