Two-wire transmitters are widely used in the industrial automation sector. As with other field devices, they are often affected by electrical noise and interference. Based on the DCS analog card interface configuration, different isolation distributors are chosen. The main principle is to provide isolated power to the transmitter, ensuring that each device has its own independent power supply. This helps in accurately transmitting the signal from the transmitter to the DCS system.
When it comes to PLC analog card interfaces, they typically operate in a two-wire loop power supply mode. In such cases, signal isolation becomes essential. To address this, a suitable product is the two-wire loop isolation series. These devices use a transformer-based isolation method, which allows the signal to be transmitted while also delivering the power supply to the input section. This ensures that all internal circuits of the transmitter function properly. An example of such a product is the PH2217 distribution unit.
Choosing the right isolation solution is crucial for maintaining signal integrity and system reliability. Whether you're working with DCS or PLC systems, using an appropriate isolation device can significantly reduce the risk of interference and improve overall performance. It's always recommended to consult with technical experts to determine the best fit for your specific application and environment.
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