I am operating two Programmable Logic Controllers (PLCs) within a network environment. The first PLC, designated as the Primary Control PLC (PLC_1), is set to manage the overall system. The second PLC (PLC_2) is configured as an I-Device, tasked with providing signals that are retrieved and processed from other connected Profinet IO Device Gateways. It's important to note that PLC_2 is equipped with only a single network interface card. Here are the IP addresses assigned to each device: - PLC_1: 10.1.1.100 - PLC_2: 10.1.1.101 - IO Device: 10.1.1.102 I have successfully set up the IO Device Gateways and established a Transfer Region for data exchange between PLC_2 and PLC_1. Following this configuration, TIA Portal has generated a "Profinet IO System" for PLC_1, consequently, any devices connected to the network are automatically assigned to PLC_1. As a result, I am currently unable to access the IO Device associated with PLC_2. Is there a potential solution to create an additional IO System that grants PLC_2 access to the IO Device while still maintaining a Transfer Region for seamless data transmission to the Primary PLC, PLC_1?
I've cracked the code! Once I connected the IO Device to the network, my next step was to remove the Profinet System Connection from PLC_2. After that, I designated it as the DP Master by right-clicking on the network. This crucial step effectively separated the two Profinet IO systems: one dedicated to PLC-to-PLC transfers and the other specifically for the IO device.
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Answer: 1. Open TIA Portal and navigate to the network configuration settings. 2. Assign a unique Profinet IO System name to PLC_2. 3. Configure the necessary IO Device connections directly with PLC_2, ensuring they are not automatically assigned to PLC_1. 4.
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