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There are too many I\O modules without any extension cable between. ERROR


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Im new in Unitronics. I'm programming my first project with unitronics and came to the following issue:

I have added a digital input and output module and now i cannot compile the project, so it's a software issue , not on the PLC itself.

The error is:

IO Config 'Config 1': There are too many I\O modules without any extension cable between.

I have a 7" integrated panel with an expansion adapter : UAG-CX-XKP300

on the expanisons i have 2 modules a uis-08TC and a UIA 0402N  With this both the system has worked fine. Now i need more digital inputs and outputs, so i have  insert at the end a UID 0808R.

As I insert on the Unilogic Software the 3rd module and  intent to  Rebuild , Compile or Download, the error listed above apears and I'm not able to update the unit with this new Module.

Can somebody help me with this issue ?

Thank you 





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You can define different hardware configuration options on the same project, where the configuration is decided in run time.

You have full configuration + extra 15 configurable configurations. The message suggests that Config 1 is configured without any cable (The cable is un-checked).


In the "Uni-I/O and COM Configuration" view, click on the PLC itself (so no I/O module will be selected)m or click the "Uni-I/O and COM Configuration" on the solution Explorer.

In the Property Window, at the bottom, you have IO Configs. Click on the 3 dots "..."

In the opened window, select Config 1 in the Combo Box, and make sure that all check boxes are checked (In your case, I think that the cable is unchecked).


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Thank you Saragani for the info. I did not know the possibility to do this over the Software. I have seen the configurations on the HMI panel.

I have checked the config and all items are selected.

I have also actualize to the last version of Unilogic in case this could be a problem.

The strange think is that if i eliminate the 3rd Module then i can compile. It does not allows me to insert 3 different modules.  " modules no problem… 3 modules = error.




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