JXR Instruction

[James_85 0]

Does anyone know how to set up a JXR instruction. I would like to use another routine if a manual set is required, and use the auto routine if normal run conditions are correct. 

[MikeyN 0]

Do you mean JSR? This is the Jump to Subroutine instruction. It should go in your logic like any other output. Input conditions on the left, JSR on the right. Once the instruction has been placed, you can add or remove input and output parameters by right clicking the instruction itself and selecting Add Input Parameter, Add Return Parameter, or Remove Instruction Parameter.

[Joe E. 259]

I haven't seen a JXR before, so I checked it out. It's a jump to an external subroutine, available in the Logix 5000 platform. The help refers to loading a DLL, so I'm not sure what it does exactly, or where the external subroutine is located. Another program?

[BobLfoot 302]

Quoting from https://literature.rockwellautomation.com/idc/groups/literature/documents/rm/1756-rm003_-en-p.pdf

"For more information on using the JXR instruction and creating external routines, see the SoftLogix5800 System User Manual, publication 1789- UM002."

You'll find it here - https://literature.rockwellautomation.com/idc/groups/literature/documents/um/1789-um002_-en-p.pdf

And on Page 114 - "For more details on creating a DLL by using Visual Studio, see Create a Visual Studio Project on page 117."