ABB AC500-eCo Starter-Kit Getting Started page 6

The following figure shows the electrical connection of the onboard digital relay outputs.
Figure 2 Wiring of the PM554-R onboard digital outputs (source)
3. Connect the PLC with your PC
TK503 Programming cable
Figure 3 PLC connect the PC with programming cable
4. Install the drive of the USB cable
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Getting Started with AC500-eCo Starter-Kit - 6 -