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PCO Modbus Tags Address

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Hello Experts,

I am trying to connect SAP PCo with a robot from Universal Robots (Model UR5E). This robot uses Modbus protocol.

Using Kepware to test the connection, I am able to create the tags and successfully connect with the robot.

On SAP Pco, according to SAP guide:

I should be able to create Modbus tags using the format:

Input register: 300000 … 365535 (or H30000 … H3FFFF)

Holding register: 400000 … 465535 (or H40000 … H4FFFF)

But Pco triggers an error that I don't know how to fix: The address is outside the configured address space

I am using the same address defined on the cobot, that I already validated on Kepware, but Pco is not accepting it.

If I remove the first number from address: "3" , the size changes from 1 to 16, which should be the correct one.

I tried using the HEX numbers, but same problem.

I don't know how to map the addresses on PCO. I would appreciate your guide.

Thank you so much,


Accepted Solutions (1)

Accepted Solutions (1)

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Hi Ernani,

By default the number of input addresses is set to 32 so supports 300000 to 300031, however you can increase this to whatever you want. Please select the "Slave Units" tab and change the Input Registers value to 136 or above and it should now work.



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Thank you so much Kevin.

It worked well.

Answers (0)