{"product_id":"pac-a-yokogawa-programmable-automation-controller","title":"PAC*A Yokogawa Programmable Automation Controller","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa PAC*A\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePAC\u003c\/strong\u003e Programmable Automation Controller, operates as a dedicated hardware component for real-time logic execution and multi-channel signal processing within Yokogawa industrial automation platforms. The controller executes control routines across 16 digital inputs, 16 digital outputs, 8 analog inputs, and 8 analog outputs. Physical I\/O channels accept digital 24 VDC logic levels and analog current or voltage ranges (0-10 V, 4-20 mA). Operating on a 24 VDC power supply drawing 500 mA, the hardware coordinates field device feedback with system scan cycles.\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\u003ePAC*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\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e125 mm x 100 mm x 75 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\u003e24 VDC, 500 mA (12 W nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Inputs \/ Outputs\u003c\/td\u003e\n\u003ctd\u003e16 inputs (24 VDC) \/ 16 outputs (24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Inputs \/ Outputs\u003c\/td\u003e\n\u003ctd\u003e8 inputs (0-10 V, 4-20 mA) \/ 8 outputs (0-10 V, 4-20 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Type\u003c\/td\u003e\n\u003ctd\u003eProgrammable Automation Controller (PAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA Analog Loop Integration and Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe PAC*A processes analog signal loops operating on 0-10 V voltage levels and 4-20 mA HART loop protocol standards. The internal circuit architecture maintains galvanic channel-to-channel isolation across input and output arrays to prevent ground potential differentials from corrupting measurement values. Analog input stages integrate cold junction compensation (CJC) processing for temperature transducer interfaces, while digital output channels switch 24 VDC loads with short-circuit suppression circuitry to maintain signal stability during transient electrical events.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the nominal current draw of the PAC*A controller during full operation?\u003c\/p\u003e\n\u003cp\u003eA: The controller consumes 500 mA at 24 VDC nominal operating voltage under full internal processing and channel initialization loads.\u003c\/p\u003e\n\u003cp\u003eQ: How are the analog input channels configured on the PAC*A module?\u003c\/p\u003e\n\u003cp\u003eA: The 8 analog input channels accept 4-20 mA current loops or 0-10 V voltage signals, using internal signal conditioning to switch between voltage measurement and current shunt modes based on terminal wiring.\u003c\/p\u003e\n\u003cp\u003eQ: What electrical isolation is implemented between the field terminals and internal logic?\u003c\/p\u003e\n\u003cp\u003eA: The module features internal galvanic isolation between field terminal connections, logic processing backplanes, and the primary 24 VDC power supply rail to suppress common-mode electrical noise.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN-Rail Mounting:\u003c\/strong\u003e Mount the PAC*A assembly securely onto a grounded 35 mm DIN-rail or chassis plate. Verify that the mechanical locking tabs engage fully.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Separation:\u003c\/strong\u003e Separate 24 VDC power wiring and field I\/O lines from high-voltage AC conductors in panel wire ducts to minimize electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding:\u003c\/strong\u003e Connect analog signal cable shields (0-10 V, 4-20 mA) directly to the main cabinet functional earth (FE) ground bus bar at a single termination point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Verification:\u003c\/strong\u003e Confirm that the 24 VDC external power supply provides stable output voltage and delivers at least 500 mA continuous current before energizing the module.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":53281723056437,"sku":"PAC*A","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/PACA.png?v=1786689895","url":"https:\/\/www.5gplc.com\/products\/pac-a-yokogawa-programmable-automation-controller","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}