{"product_id":"yokogawa-pnl4-a-communication-processor-module","title":"Yokogawa PNL4*A Communication Processor Module","description":"\u003cp\u003eConfigured for high-performance signal interfacing in industrial automation platforms, the \u003cstrong\u003eYokogawa PNL4*A\u003c\/strong\u003e (\u003cstrong\u003ePNL4*A\u003c\/strong\u003e Communication Processor Module) provides direct physical\/electrical execution of 32-bit RISC logic processing, multi-protocol communication, and high-isolation I\/O signal management.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePNL4*A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSystem dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e200 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 x 100 x 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSystem backplane dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor\u003c\/td\u003e\n\u003ctd\u003e32-bit RISC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eYokogawa DCS Process Control Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-20 mA HART loop protocol:\u003c\/strong\u003e The PNL4*A interfaces with diverse field instrumentation, including HART-enabled analog devices. Its architecture ensures that analog process variables are digitized and forwarded to the DCS controller with high precision, maintaining transparency for digital overlay diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFOUNDATION Fieldbus \/ Profibus PA connectivity:\u003c\/strong\u003e The module utilizes a multi-protocol communication engine to bridge local I\/O states with external supervisory networks. This facilitates deterministic data exchange across Modbus RTU, Modbus TCP, and Ethernet\/IP environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel-to-channel isolation:\u003c\/strong\u003e The unit provides 2500 Vrms galvanic isolation. This is mandatory to decouple the field-side sensors and actuators from the internal control logic, preventing electrical faults or ground potential differences from propagating to the 32-bit processing core.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold junction compensation (CJC):\u003c\/strong\u003e The module’s thermal design supports stable operation in high-density rack environments; its internal isolation ensures that localized heat signatures do not influence the reference accuracy of precision analog inputs connected to the module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the PNL4*A be configured to handle simultaneous analog and digital I\/O?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the module is designed as a versatile interface. The 32 channels can be partitioned within the software configuration to handle a mix of digital and analog I\/O points, provided the total channel capacity is not exceeded.\u003c\/p\u003e\n\u003cp\u003eQ: How is the 2500 Vrms isolation maintained during field wiring?\u003c\/p\u003e\n\u003cp\u003eA: The isolation barrier is internal to the module’s PCB assembly. To maintain this rating, field wiring must be routed to avoid bridging the isolation gaps; ensure that I\/O cables are neatly managed and that external transient protection is used for field-side wiring exposed to environmental surges.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Secure the PNL4*A into the designated industrial rack or panel enclosure. Ensure adequate clearance around the module to facilitate airflow, which is mandatory to maintain the processor’s thermal stability within the -20 deg C to +60 deg C operating range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Bond the module chassis to the cabinet’s common safety ground using a low-impedance conductor. Proper grounding is mandatory to ensure the efficacy of the 2500 Vrms isolation and to protect the 32-bit RISC processor from electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Keep digital and analog signal wiring separated from high-voltage AC lines by at least 150 mm. Use shielded, twisted-pair cabling for Ethernet\/IP and Modbus TCP connections to minimize signal noise, which is mandatory to maintain deterministic communication performance and to avoid packet collisions on the industrial network.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45188887838835,"sku":"PNL4*A","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-07-08_15-33-14.png?v=1783500367","url":"https:\/\/www.dcssupplier.com\/ar\/products\/yokogawa-pnl4-a-communication-processor-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}