How to Configure Older 1756 modules


I’m interesting in purchasing some older 1756-L61 type controllers and modules to practice programming on. It turns out that e-bay is a great place to buy them. I’m not sure though how to configure these modules in a new project using Studio 5000. The option to start a project with a 1756-L61 module is not even available.

Can someone please help me figure out how to begin a project using a 1756-L61 controller?

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Hi Chris,

A 1756-L61 PLC can only be used up to version 20 of RSLogix 5000 (See the Rockwell compatibility centre for this model).

To get up to speed on this, you’ll need RSLogix 20 and to flash the firmware on the controller before you can load the project into it.

On the same note, you’ll also need to purchase a chassis, power supply and an EtherNet card to talk to the PLC.

Let me know if you have any other questions; i’d be happy to help you along.

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Thanks very much for that Vlad. I’m really enjoying your vids!

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So I located a 1756-L62 ControlLogix 5562 CPU processor. I’m interested in buying it with the power supply, the chassis, discrete DC inputs and outputs, as well as some DC analog outputs. I’ve also got a 1756-ENET/B for communication picked out.

Do I need to check the firmware version for the I/O or the power supply, or the 1756-ENET/B? Or only the processor? Additionally, can you recommend a DC power supply to connect inputs? Could I possibly get an image of how you wired it up to input and output signals? I’m thinking the wiring could take quite a bit of effort.

I think Rockwell makes it harder to download a firmware like version 20. It is locked and not allowed to download, few times I noticed that you can get a download link, after explaining why need a old version. Make sure you have the firmware downloaded and ready to go (unless the CPU comes preloaded)