{"product_id":"honeywell-2mlf-ad8a-8-channel-analog-input-module-14-bit-250-s-channel","title":"Honeywell 2MLF-AD8A 8-Channel Analog Input Module, 14-Bit, 250 μs\/Channel","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eHoneywell 2MLF-AD8A\u003c\/strong\u003e is an \u003cstrong\u003e8-channel analog input module\u003c\/strong\u003e for the \u003cstrong\u003eMasterLogic-200 PLC series\u003c\/strong\u003e. It converts analog voltage and current signals from field devices into high-resolution digital values. With \u003cstrong\u003e14-bit binary resolution (1\/16000)\u003c\/strong\u003e, \u003cstrong\u003e250 μs per channel conversion speed\u003c\/strong\u003e, and \u003cstrong\u003e±0.2% accuracy\u003c\/strong\u003e, this module delivers precise and fast data acquisition for critical process control applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 8 independent analog input channels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Types:\u003c\/strong\u003e Voltage and current (hybrid input processing)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Ranges:\u003c\/strong\u003e 1–5V, 0–5V, 0–10V, -10 to +10V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Ranges:\u003c\/strong\u003e 4–20mA, 0–20mA DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 1\/16000 (14-bit binary)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Resolution:\u003c\/strong\u003e 0.250mV (1–5V), 0.3125mV (0–5V), 0.625mV (0–10V), 1.250mV (-10 to +10V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Resolution:\u003c\/strong\u003e 1.0µA (4–20mA), 1.25µA (0–20mA)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConversion Speed:\u003c\/strong\u003e 250 μs per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e ±0.2% or less (at 25°C ±5°C); ±0.3% or less (at 0°C to 55°C)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e ≥ 1MΩ (voltage input); 250Ω (current input)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital Output Formats:\u003c\/strong\u003e Unsigned (0–16000), Signed (-8000–8000), Percentile (0–10000), Precise\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e Photo-coupler isolation between input terminal and PLC power (no channel-to-channel isolation)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisconnection Detection:\u003c\/strong\u003e Automatic input disconnection detection for 1–5V and 4–20mA ranges\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +55°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.115 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHybrid Input Processing:\u003c\/strong\u003e Each of the 8 channels supports both voltage and current inputs, eliminating the need for separate voltage-only or current-only modules.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Speed Conversion:\u003c\/strong\u003e 250 μs per channel ensures rapid analog signal acquisition, ideal for fast-changing process variables.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Resolution \u0026amp; Accuracy:\u003c\/strong\u003e 14-bit 1\/16000 resolution combined with ±0.2% accuracy delivers precise measurement for critical control loops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible Data Formats:\u003c\/strong\u003e Four configurable digital output formats (unsigned, signed, percentile, precise) adapt to diverse programming and HMI requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Disconnection Detection:\u003c\/strong\u003e Built-in open-circuit detection for 1–5V and 4–20mA inputs enables proactive maintenance and reduces unplanned downtime.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndividual Channel Configuration:\u003c\/strong\u003e Each channel's input range and data format can be set independently via DIP switch or SoftMaster I\/O parameter settings.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 2MLF-AD8A be hot-swapped during operation?\u003c\/strong\u003e\u003cbr\u003eA: No. The module must be inserted or removed only when the controller rack is \u003cstrong\u003ede-energized\u003c\/strong\u003e to prevent damage to the module or backplane.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 250 μs conversion speed affect the overall PLC scan time?\u003c\/strong\u003e\u003cbr\u003eA: The 250 μs per channel determines how quickly each analog input updates. Overall scan timing depends on the controller's configured I\/O strategy and total module count.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can each channel use a different input range or data format?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Each channel's input type, range, and digital output format can be configured individually through \u003cstrong\u003euser logic or the SoftMaster I\/O parameter interface\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 2MLF-AD8A and 2MLF-AD16A?\u003c\/strong\u003e\u003cbr\u003eA: The \u003cstrong\u003e2MLF-AD8A\u003c\/strong\u003e provides 8 channels with 250 μs conversion speed. The \u003cstrong\u003e2MLF-AD16A\u003c\/strong\u003e provides 16 channels with 500 μs conversion speed. Select the AD8A for fewer channels and faster conversion, or the AD16A for higher channel density.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eInstall the module into an available slot of a \u003cstrong\u003eMasterLogic-200 base\u003c\/strong\u003e (main or expansion).\u003c\/li\u003e\n  \u003cli\u003eWire analog field devices to the module's \u003cstrong\u003e18-point terminal block\u003c\/strong\u003e using shielded cables to minimize electrical noise.\u003c\/li\u003e\n  \u003cli\u003eFor \u003cstrong\u003evoltage inputs\u003c\/strong\u003e, connect signal wires to the designated V+ and COM terminals.\u003c\/li\u003e\n  \u003cli\u003eFor \u003cstrong\u003ecurrent inputs\u003c\/strong\u003e, connect the 4–20mA or 0–20mA loop across the I+ and COM terminals.\u003c\/li\u003e\n  \u003cli\u003eSet the \u003cstrong\u003einput range DIP switches\u003c\/strong\u003e or configure ranges via SoftMaster software before energizing the rack.\u003c\/li\u003e\n  \u003cli\u003eVerify channel status via the module's \u003cstrong\u003eLED indicators\u003c\/strong\u003e and use the special module monitor function in SoftMaster to confirm correct A\/D conversion values.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannel Count vs. Speed:\u003c\/strong\u003e Choose the 2MLF-AD8A for 8 channels at 250 μs speed. If your application requires 16 channels and can tolerate 500 μs conversion, consider the \u003cstrong\u003e2MLF-AD16A\u003c\/strong\u003e for higher density.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal Type:\u003c\/strong\u003e The AD8A handles both voltage and current. If your field devices are exclusively voltage or current, the \u003cstrong\u003e2MLF-AV8A\u003c\/strong\u003e (voltage only) or \u003cstrong\u003e2MLF-AC8A\u003c\/strong\u003e (current only) may offer cost-optimized alternatives.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIsolation Requirements:\u003c\/strong\u003e The AD8A provides photo-coupler isolation between inputs and PLC power, but not between channels. For applications requiring channel-to-channel isolation, consider the \u003cstrong\u003e2MLF-AD4S\u003c\/strong\u003e (4-channel isolated variant).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHART Protocol:\u003c\/strong\u003e If your 4–20mA devices require HART communication, select the \u003cstrong\u003e2MLF-AC4H\u003c\/strong\u003e HART analog input module instead of the standard AD8A.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e The module operates from 0°C to +55°C. For environments exceeding this range, verify cabinet conditioning or select modules with extended temperature ratings.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53978154664120,"sku":"2MLF-AD8A","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/2MLF-AD8A_2_9ecd35b7-fd9a-451e-a34c-ceffeab13607.png?v=1787627851","url":"https:\/\/www.globalpetroparts.com\/products\/honeywell-2mlf-ad8a-8-channel-analog-input-module-14-bit-250-s-channel","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}