Description

Honeywell SC-UCMX02 51307195-276 is a modular, scalable process controller designed for remote automation and control applications. Powered by a dual-core ARM Cortex-A9 32-bit CPU running at 667 MHz, it provides integrated processing and direct field connections with 28 mixed onboard I/O channels. The SC-UCMX02 non-redundant controller includes 256 MB DRAM, 256 MB Flash memory, and 4 Mbits of battery-free nonvolatile memory. Built-in serial and Ethernet communication ports support standard industrial protocols including Modbus, DNP3, HART-IP, IEC 60870-5-104, and MQTT/Sparkplug. Designed for harsh remote operational environments, the unit operates in extended temperatures from -40 degC to 75 degC with conformal-coated assemblies and transient voltage suppression on all I/O channels and serial/Ethernet communication ports.

Features

• Processor & Memory: Dual Core ARM Cortex-A9 (32-bit) 667 MHz processor with 256 MB DRAM, 256 MB Flash, and 4 Mbits nonvolatile memory requiring no battery backup.
• Onboard Mixed I/O: 28 integrated I/O channels including 8 Analog Inputs (HART), 2 Analog Outputs (HART), 10 Digital Inputs, 6 Digital Outputs, and 2 Pulse/Digital Inputs.
• Ethernet Communications: 2 ANSI/IEEE 802.3 10/100BaseTx RJ45 ports with 1500 V RMS isolation and transient voltage suppression.
• Serial Interfaces: 2 RS232 ports (RJ45, full-duplex, up to 15m) and 2 RS485 ports (screw terminals, 2-wire half-duplex, up to 1200m).
• Protocol Support: Supports Modbus RTU/ASCII/TCP, Enron Modbus, DNP3 TCP (Level 3+ Outstation/Master), IEC60870-5-104, MQTT (Sparkplug B), and HART-IP.
• Expandability: Supports up to 30 expansion I/O modules across up to 5 expansion rows.
• Datalogging: Event logs stored on internal Flash memory (up to 200,000 events) or an optional SD card (up to 500,000 events, up to 32GB Class 6/10).
• Ruggedized Construction: Operates across -40 degC to 75 degC, compliant with ANSI/ISA S71.04 Class G3 conformal coating and IEC 60068-2-6 vibration resistance.

Applications

• Remote Terminal Unit (RTU) process control
• Oil and gas custody transfer and Electronic Flow Metering (EFM)
• Wellhead control and artificial lift systems (Plunger Lift)
• Pipeline monitoring and remote infrastructure automation
• Remote asset monitoring via HART-IP and field device integration

Ordering Information

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Mounting: Install on standard TH35-7.5 DIN rail in a vertical orientation to maintain natural thermal convection.
• Power Supply: Connect an external 18 to 30 VDC power supply to the dedicated power terminals on the controller IOTA.
• Grounding & Shielding: Ensure all RJ45 Ethernet connectors use shielded cabling and connect chassis drain wires on RS485 terminal blocks to mitigate electrical noise.
• Transient Suppression: Built-in transient voltage suppression is present on all I/O channels and communication interfaces.
• Expansion Cabling: Connect expansion I/O rows using standard CAT-5 cables routed between left and right end plates up to a maximum distance of 100 meters.

Compliance and Certifications

• Hazardous Locations: CSA Class I, Division 2, Group A, B, C, D T4; Ex ec IIC T4 Gc; ATEX II 3 G Ex ec IIC T4 Gc; IECEx Ex ec IIC T4 Gc
• UL Standards: UL121201, UL 60079-0, UL 60079-7, UL Std. No. 61010-1
• CSA Standards: CAN/CSA-C22.2 No. 213-17, CAN/CSA-C22.2 No. 61010-1-12, CAN/CSA-C22.2 No. 60079-0:15, CAN/CSA-C22.2 No. 60079-7:16, CAN/CSA C22.2 No. 0-10
• ATEX/UKCA Standards: EN IEC60079-0:2018, EN 60079-7:2015+A1:2018
• IEC Standards: IEC 60079-0 (2017), IEC 60079-7:2017
• CE Directives: LVD EN 61010-1 (2010), EMC EN 61326-1 (2013)
• Marine Certification: Bureau Veritas (BV), DNV GL
• Security Certification: ISASecure / IEC 62443 Conformance (Security Level 2)
• Environmental & Environmental Standards: UL 94 V-0 Flammability, ANSI/ISA S71.04 Class G3 Conformal Coating, IEC 60068-2-6 Vibration