Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Controller type | Non-redundant RTU controller |
| Processor | Dual-core ARM Cortex-A9, 667 MHz |
| RAM | 128 MB |
| Program flash | 32 MB |
| Nonvolatile memory | 4 Mbits |
| Supply voltage | 24 VDC nominal |
| Operating voltage range | 18–30 VDC |
| Maximum rated input current | 1.20 A at 30 VDC, controller plus 9 IOMs |
| Onboard I/O | 28 channels |
| Analog inputs | 8, 4–20 mA or 1–5 VDC, 16-bit |
| Analog outputs | 2, 4–20 mA, 12-bit |
| Digital inputs | 10, 24 VDC |
| Digital outputs | 6, 24 VDC, 80 mA/channel maximum |
| Pulse inputs | 2, configurable as pulse or digital inputs |
| Ethernet | 2 × 10/100Base-TX |
| Serial interfaces | 2 × RS-232 and 2 × RS-485 |
| Supported protocols | Modbus TCP/RTU, DNP3, Enron Modbus, HART-IP |
| Mounting | DIN rail, TH35-7.5 |
| Dimensions | 190 × 99 × 141 mm |
| Weight | Approximately 700 g |
| Operating temperature | -40 to +75°C |
| Storage temperature | -40 to +85°C |
| Relative humidity | 5–95%, non-condensing |
Product Introduction
The Honeywell SC-UCMX01 ControlEdge RTU is a compact, non-redundant process controller designed for remote automation installations. Its integrated 28-channel mixed I/O arrangement combines analog inputs, analog outputs, digital inputs, digital outputs, and high-speed pulse inputs in one controller assembly. This reduces the need for separate I/O hardware in smaller remote control stations while retaining expansion capability.
SC-UCMX01 51307195-175
The controller uses a dual-core ARM Cortex-A9 processor and supports IEC 61131-3 programming through Honeywell ControlEdge Builder. Its Ethernet and serial interfaces allow communication with SCADA systems, field instruments, and local equipment. Supported protocols include Modbus, DNP3, Enron Modbus, and HART-IP. Typical applications include remote pumping stations, pipeline monitoring, gas metering, utility installations, and distributed process control.
Application Scenarios and Field Pitfalls
Typical applications
- Oil and gas pipeline monitoring and remote control.
- Gas metering and electronic flow measurement.
- Water and wastewater treatment facilities.
- Remote pumping and compressor stations.
- Utility substations and distributed process installations.
- HART-enabled field instrumentation networks.
Important engineering considerations
- Power supply: The controller requires 18–30 VDC. Do not substitute an AC-powered controller based on misleading catalog specifications.
- I/O configuration: The onboard 28-channel arrangement has a defined channel mix. Verify field wiring against the actual I/O terminal assignments.
- Signal isolation: The documented analog and digital onboard channels are not universally isolated. Check grounding and signal common arrangements before connecting field devices.
- Communications: Confirm Ethernet addressing, serial port configuration, protocol settings, and SCADA register mapping.
- Expansion: The documented architecture supports up to nine expansion I/O modules. Expansion layout and end-plate requirements must be checked.
- Firmware and project compatibility: Match the controller firmware release with the ControlEdge Builder project and existing RTU configuration.
Related Products and Variants
| Model | Description |
|---|---|
| SC-UCNN11 | Redundant ControlEdge RTU controller |
| SC-UMIX01 | 28-channel mixed I/O module |
| SC-TEPR01 | Right expansion end plate |
| SC-TEPL01 | Left expansion end plate |
| SC-PCMX01 | Processor module designation appearing in secondary catalog records; verify separately |
SC-UCMX01 and SC-PCMX01 should not be treated as equivalent part numbers. Honeywell’s published hardware documentation describes SC-UCMX01 as a complete CPM-and-IOTA controller assembly.
Procurement and Quality Control
The main procurement issue is the relationship between SC-UCMX01 and 51307195-175. Supplier catalogs associate these identifiers, but Honeywell’s retrieved technical specification confirms the SC-UCMX01 model without establishing that exact numeric part-number mapping.
Before purchasing, verify:
- Complete product label and Honeywell part number.
- Whether the item is the complete SC-UCMX01 assembly or an individual CPM.
- Included IOTA and onboard I/O hardware.
- Hardware revision and firmware release.
- Terminal condition and connector integrity.
- Power-on diagnostics and communication test results.
- Availability of the existing ControlEdge Builder project and configuration backup.
Replacement recommendation: Use SC- as the primary identification, but confirm 51307195-175 against the original nameplate before ordering. A similar-looking processor module alone may not provide the complete controller assembly required by the installation.
