X20cDIF371
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The X20cDIF371 is a compact fieldbus module with 16 digital inputs and selectable 24 VDC sink/source input types. Manufactured by B & R Automation as part of the X20 Fieldbus Input Output Modules, it features IP20 protection and operates within a -25°C to +60°C temperature range. It consumes 1.7 W of power.
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Product Description:
The B & R’s X20cDIF371 variant features 16 digital inputs which supports extensive signal acquisition in compact installations, making it one of the best models in X20 Fieldbus Input Output Modules series. The addition of selectable sink (NPN) or source (PNP) input wiring operates at 24 VDC, works easily with standard control voltages. An input voltage range from 18 VDC up to 30 VDC accommodates supply fluctuations, guaranteeing consistent detection across varied power conditions.
Operating from -25°C to +60°C, this I/O device covers extreme environmental conditions and ensure reliable performance in cold‑storage and heated process areas. IP rating of IP20 prevents ingress of objects larger than 12 mm size, securing electronics in closed cabinets. Its width of 37.5 mm conserves DIN‑rail space which enhancing I/O density. A typical input current of 3.5 mA at nominal voltage minimizes loading on upstream power supplies, maintaining an overall bus stability. The input filter delay offers selectable values of 0.2 ms or 1 ms that enables suppression of short disturbance pulses. Integrated channel diagnosis provides real‑time error detection and thereby accelerates commissioning and maintenance.
A module supply voltage tolerance of -25% to +30% around 24 VDC maintains operation under line‑voltage variations just to maximize system uptime. Power consumption for this X20 fieldbus unit capped at 1.7 W keeps heat output low, allowing a dense module arrangement. A continuous isolation rating of 500 V from channel to bus (and 1.5 kV for one minute) protects field circuit. Spring‑terminal connection technology guarantees safe wiring that speed up installation process and device replacement. Further, its height of 122 mm aligns with standard rack dimensions to aid predictable cabinet layouts. Also, a depth of 35 mm keeps the profile slim which allows tight panel packing. Standard process‑control applications benefit from its precise switch‑signal capturing, especially in the batching systems.
Frequently Asked Questions about X20cDIF371:
Q: What is the channel count on the X20cDIF371 module?
A: The X20cDIF371 provides 16 digital inputs in a single slice. This capacity supports multiple discrete sensors without external expansion.
Q: Why does the X20cDIF371 support sink and source input types?
A: Selectable sink (NPN) or source (PNP) configurations adapt to varied sensor polarities. This flexibility simplifies integration with different field devices.
Q: What is the significance of 0.2 ms/1 ms selectable input delay?
A: This flexible filtering rejects short disturbances or debounce signals as required. This adjustability maintains signal clarity in noisy environments.
Q: How does channel diagnosis improve module maintenance?
A: Integrated diagnostics detect wiring errors and input faults in real time. This feature accelerates troubleshooting and reduces downtime.
Q: What advantage does the 24 VDC supply tolerance offer?
A: A –25 %/+30 % tolerance around 24 VDC preserves operation during voltage sags or surges. This resilience enhances uptime in unstable power networks.
