{"product_id":"delta-ah08ad-5c-ah500-series-8-channel-analog-input-module","title":"DELTA AH08AD-5C Module d'entrée analogique 8 canaux série AH500","description":"\u003ch3\u003eHigh-Density Precision Process Analytics Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAH08AD-5C (AH08AD-5C)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-density, 16-bit precision analog input expansion module engineered by Delta for the flagship AH500 Series modular PLC platform. Outfitted with 8 isolated instrumentation channels, this module performs high-speed analog-to-digital conversions of standard current loops across demanding industrial environments. In continuous-process control architectures such as petrochemical refining, pharmaceutical batching, municipal wastewater monitoring, and thermal power plant regulation, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAH08AD-5C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003epreserves absolute signal fidelity and curtails unexpected downtime through an isolated hardware topology and advanced diagnostic metrics. Its integrated hot-swap functionality enables online component replacement without interrupting the main processing chassis rack, ensuring continuous plant floor availability.\u003c\/p\u003e\n\u003ch3\u003eAdvanced Signal Processing \u0026amp; Diagnostic Architecture\u003c\/h3\u003e\n\u003cp\u003eThe internal engineering layout of the AH500 analog input module is optimized for deterministic data acquisition and robust fault monitoring:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e16-Bit Resolution ADC Core:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTranslates low-level current variables into high-resolution digital registers, allowing the master CPU to detect minuscule process fluctuations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHardware-Driven Interrupts:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupports configurable interrupt functions that bypass regular PLC scan times, instantly alerting the CPU when a critical process boundary or threshold is violated.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eComplete Galvanic Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes an isolated signal design between channels and backplane circuitry to prevent hazardous ground loops from corrupting the internal system data.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eComprehensive Self-Diagnostics:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures an onboard diagnostic engine combined with module status LED indicators to immediately identify loop open-circuits, over-range parameters, or internal component faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCritical Engineering Parameters\u003c\/h3\u003e\n\u003cp\u003eThe following specification overview outlines the mechanical, electrical, and thermal accuracy boundaries verified for system engineering:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAH08AD-5C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDELTA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTaiwan\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Classification\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAH500 Series Analog Input Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSupported Signal Ranges\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 20 mA, 4 to 20 mA, +\/- 20 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eA\/D Conversion Resolution\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16-bit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConversion Interval\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150 microseconds per channel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBase Accuracy (at 25 deg C)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage mode +\/- 0.1%, Current mode +\/- 0.1%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBase Accuracy (Full Temp Range)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage mode +\/- 0.45%, Current mode +\/- 0.2%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInternal Power Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.6 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eField Connection Interface\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eJIS Removable Terminal Block\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSystem Hot-Swapping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSupported (Online module replacement)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.00 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Knowledge Base \u0026amp; Common Inquiries\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat exact advantages does the 150 microsecond conversion time provide in a multi-channel configuration?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ultra-fast conversion rate of 150 microseconds per channel means the module can refresh all 8 analog channels sequentially in approximately 1.2 milliseconds. This deterministic conversion velocity allows the controller to perform precise proportional-integral-derivative (PID) loop calculations on highly dynamic variables like fast-moving hydraulic pressures or turbine fuel delivery streams.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the hot-swapping function operate during an active process routine?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AH08AD-5C incorporates internal electronic power switches and dedicated backplane bus buffers. When an active module requires replacement, it can be unclipped and removed from the active rack slot without dropping the 24 VDC backplane power or corrupting data lines. The master CPU flags the slot as missing, and upon insertion of a new identical module, automatically clones the existing parameter configuration back into the device registers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does the specification list voltage mode errors if this is primarily a current loop module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe core ASIC hardware uses an internal precision sensing matrix that defaults to voltage measurement profiles. For current input modes (0\/4-20mA), the internal terminal connections route the signal across a low-tolerance precision shunt resistor to convert the current loop into a proportional voltage drop. The engineering sheet defines both limits to accommodate specialized factory tunings.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Commissioning \u0026amp; Safety Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShielded Current Loop Instrumentation Routing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRoute all process sensor wiring using high-grade, twisted-pair shielded cables (e.g., Belden 8760). Terminate the braided copper shields strictly at the designated ground bar of the control enclosure using low-impedance clamps. Keep these low-voltage signal runs isolated from high-voltage AC motor lines and VFD output wires by at least 200 mm to suppress high-frequency electromagnetic cross-talk.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal Screw Torques and Wiring Alignment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen configuring the JIS removable terminal block, strip the insulation cleanly and use insulated crimp ferrules on all wire ends. Fasten terminal screws down tightly to the factory torque limits. Loose terminations introduce variable contact resistance, which introduces measurement offsets and skews the 16-bit conversion accuracy.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCabinet Thermal Profiling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMount the module vertically on the standard AH500 rack baseplate. To ensure the full-temperature current accuracy of +\/- 0.2% is maintained, maintain a strict 50 mm clear space above and below the rack assembly to allow unobstructed convective cooling. Ensure that adjacent high-heat components (such as braking resistors or line reactors) do not push the local enclosure ambient temperature past the module's rated operational limit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Delta Electronics","offers":[{"title":"Default Title","offer_id":53102388412779,"sku":"AH08AD-5C","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/AH08AD-5C-f2xxwpucagz.png?v=1776137197","url":"https:\/\/www.plcprotech.com\/fr\/products\/delta-ah08ad-5c-ah500-series-8-channel-analog-input-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}