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        Honeywell 10102/2/1
        Honeywell 10102/2/1
        Honeywell 10102/2/1
        Honeywell 10102/2/1
        Honeywell 10102/2/1
        Honeywell 10102/2/1
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        10102/2/1

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        The Honeywell 10102/2/1 is a fail-safe analog input module designed with 4 channels for precise 0–2 Vdc signal acquisition. It supports galvanically isolated inputs with integrated diagnostics and self-test functions, making the Honeywell 10102/2/1 suitable for high-integrity industrial control systems requiring reliable analog signal processing.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
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        Technical specifications for 10102/2/1

        • Manufacturer:
          Honeywell
        • Part Number:
          10102/2/1
        • Product Family:
          Honeywell FSC Series
        • Product Type:
          Fail-Safe Analog Input Module(4 channels)
        • Approvals:
          CE, TÜV, UL
        • Software versions:
          ≥ 3.00
        • Space requirements:
          4 TE, 3 HE (= 4 HP, 3U)
        • Power requirements:
          5 Vdc 30 mA; 24 Vdc 175 mA + 25 mA for each active input.
        • Number of input channels:
          4
        • Input specification (V):
          0-2 Vdc
        • Input resistance:
          > 100 kOhm
        • Loop powering:
          26 Vdc (±1 V for 0.2 mA < I < 20 mA),short-circuit protected
        • Loop current limit:
          > 21 mA solid state
        • A/D converter:
          12-bit
        • Inaccuracy:
          ≤ 0.75%
        • Absolute max. input signal:
          ± 5 Vdc
        • Module connector code:
          − holes A5, C17
        • Rack connector code:
          − large pins A5, C17
        • Weight:
          0.3 kg
        • Estimated shipping dimensions:
          4x18.5x12.8cm
        • Tariff Code:
          6406909900
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Compliance Connectivity Application Scenarios

        Features:

        • Four-channel fail-safe analog input structure with 0–2 Vdc measurement capability
        • Integrated self-test system covering inputs, outputs, and internal reference voltages
        • High-integrity signal handling with galvanic isolation and loop-powered excitation
        The Honeywell 10102/2/1 module is designed to deliver reliable analog signal acquisition in safety-oriented industrial control environments. With four independent channels and fail-safe architecture, it ensures stable data collection even under demanding operating conditions. The Honeywell 10102/2/1 integrates diagnostic intelligence that continuously monitors both signal and system integrity.

        From an operational perspective, the Honeywell 10102/2/1 supports precise 0–2 Vdc input measurement while maintaining high input impedance characteristics. This allows flexible integration with a wide range of transmitters without significant signal loading effects. Its loop-powered design also ensures stable excitation for connected field devices.

        In industrial automation systems, the Honeywell 10102/2/1 is commonly used in architectures requiring strict safety validation and continuous monitoring. Its combination of galvanic isolation, built-in calibration options, and structured self-test routines makes it suitable for environments where accuracy and reliability are essential for process stability and control continuity.

        The 10102/2/1 Honeywell Fail-Safe Analog Input Module(4 channels) may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Honeywell 10102/2/1 Fail-Safe Analog Input Module(4 channels) Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        Honeywell 10102/2/1 Fail-Safe Analog Input Module(4 channels) Specs

        General

        • Manufacturer Honeywell
        • Model 10102/2/1
        • Condition New Original ready stock
        • Product Family 10104/2/1,10101/2/1,10101/2/2
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Safety Level: Complies with IEC 61508 standards, suitable for Safety Instrumented Systems (SIS) up to SIL3, ensuring extremely high fail-safe probability in critical processes.
        • Explosion-proof Certification: Obtained ATEX or relevant industry standard certification, allowing field instruments deployed in hazardous areas to be connected via safety barriers.
        • Industry Standards: Meets the stringent regulatory requirements of the oil, gas, and chemical industries for Emergency Shutdown (ESD) and Fire and Gas Alarm (F&G) systems.
        • Electromagnetic Compatibility: Passes industrial-grade EMC testing, maintaining signal transmission accuracy and stability even in industrial environments with strong electromagnetic interference.
        • Active Configuration: The module can provide 26 Vdc power to field sensors, with current limiting protection to prevent short circuits in field wiring from affecting overall operation.
        • Passive Connection: Supports external power supply mode, flexibly adapting to various analog field devices with different power supply types, such as transmitters and analyzers.
        • Input Conversion: Requires a conversion module (e.g., 10102/A/x) to convert standard 4-20 mA or 0-10 V signals into internal signals that the module can process.
        • Electrical Isolation: Electrical isolation is achieved between the input channel and the system's internal power supply (5 Vdc) and external 24 Vdc power supply, effectively preventing common-mode interference and ground potential differences.
        • Emergency Shutdown: Used to monitor critical points such as pressure, flow rate, or liquid level. When the value exceeds a safety threshold, it automatically triggers the logic protection action of the process unit.
        • Fire Alarm: Connects to toxic or combustible gas detectors to collect concentration signals in real time and activates audible and visual alarms or fire extinguishing systems through safety logic when a leak occurs.
        • Boiler Protection: Collects real-time data on drum water level and furnace pressure to ensure that fuel supply is forcibly cut off when design limits are exceeded, preventing equipment damage.
        • Critical Overflow Monitoring: Used in chemical storage tanks or treatment pools to monitor liquid level in real time and prevent environmental pollution or safety accidents caused by overflows.
        Description
        The Honeywell 10102/2/1 fail-safe analog input module is engineered with four independent analog input channels operating within a 0–2 Vdc range. Each channel shares a common 0 V connection while maintaining galvanic isolation from both 24 Vdc and 5 Vdc supply rails. This isolation structure ensures stable signal handling within safety-oriented control architectures.

        In its electrical configuration, the module operates with 5 Vdc at 30 mA and 24 Vdc at 175 mA, with an additional 25 mA required for each active input. The input resistance is greater than 100 kOhm, allowing high-impedance signal integration. The Honeywell 10102/2/1 also supports absolute maximum input signals up to ±5 Vdc while maintaining controlled operating conditions.

        Each input channel is supported by a loop powering function providing 26 Vdc (±1 V within 0.2 mA to 20 mA range), with short-circuit protection and a loop current limit exceeding 21 mA via solid-state design. This ensures stable transmitter excitation and controlled current behavior across all channels.

        The module integrates a 12-bit A/D converter with an inaccuracy level of ≤0.75%, ensuring consistent analog-to-digital conversion performance. It also features a structured self-test mechanism that scans analog inputs, 26 V outputs, internal supply voltages, and a reference voltage generated via a D/A converter to verify system integrity.

        Within the Honeywell 10102/2/1, multiple diagnostic checks are continuously executed within the configured process safety time, including accuracy verification, full-range conversion validation, input crosstalk detection, and monitoring of loop-powered outputs. The design also includes potentiometers for calibration (P1, P2, P4, P5), enabling adjustment through calibration tools, external calibrators, or extender configurations when integrated with the required I/O backplane and converter module 10102/A/.

        Physically, the module occupies 4 TE space (3 HE / 4 HP, 3U) and requires an I/O backplane connection for operation due to its dependency on the 10102/A/ converter module. It also includes defined connector coding for both module and rack interfaces, ensuring correct installation alignment within system architecture.
        Alternative Names
        10101/2/1 10104/2/1 10105/2/1 10101/2/3
        Technical notes
        Honeywell 10102/2/1 fail-safe analog input module, 4 channels 0–2 Vdc inputs with common 0 V and galvanic isolation from 24 Vdc and 5 Vdc, power consumption 5 Vdc 30 mA and 24 Vdc 175 mA plus 25 mA per active input, input resistance >100 kOhm, loop powering 26 Vdc ±1 V for 0.2–20 mA with short-circuit protection and >21 mA current limit, 12-bit A/D conversion with ≤0.75% inaccuracy, absolute max input ±5 Vdc, calibration via P1 P2 P4 P5, requires 10102/A/ converter module and I/O backplane, connector code A5 C17.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        What makes the Honeywell 10102/2/1 suitable for fail-safe systems?
        It combines galvanically isolated inputs, self-test diagnostics, and continuous signal validation to maintain controlled operation in safety-critical environments.
        Why does this module use a high input impedance design?
        High input impedance ensures minimal loading on connected signal sources, improving measurement stability across all four channels.
        How does the system perform internal diagnostics?
        It scans analog inputs, loop outputs, internal supply voltages, and reference voltages generated by a D/A converter to verify system health.
        What role does loop powering play in the Honeywell 10102/2/1?
        Loop powering provides 26 Vdc excitation for connected transmitters with short-circuit protection and controlled current limits.
        How does Honeywell 10102/2/1 handle input protection?
        Each loop output is short-circuit protected and limited by solid-state current control to maintain safe operating conditions.

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