Description
Product Overview
The ALSTOM UT129C-1 is a CPU module for the ALSPA CE2000 R5 control system, designed for applications requiring local control processing and communications with distributed I/O. It is used in safety-related control architectures, including boiler protection systems, where controller execution and communication integrity are important to the overall plant design. The module combines a 33 MHz Motorola 68020 processor with a FULLFIP2 controller and a synchronization input. Its role is to execute local control functions and connect the CE2000 controller to the associated network and I/O infrastructure.
A key identification point is the communications interface. The UT129C-1 is documented for 1 Mbps copper WorldFIP, and the product reference lists support for managing up to 16 I/O or communications modules. The available technical description specifies 1 MB of REPROM and 512 KB of battery-backed RAM. These characteristics are relevant when assessing an existing controller, identifying a suitable spare, or reviewing a maintenance plan. Firmware compatibility matters: available versions include U20/U30 V M03.01 and VM.07.02, with other versions requiring confirmation from the supplier.
For replacement procurement, do not select a controller solely by its UT129 designation. Confirm the complete UT129C-1 reference, hardware revision, firmware version, network medium, and the installed CE2000 R5 configuration. The product documentation explicitly warns against mixing this copper WorldFIP variant with the UT150-1 on the same WorldFIP network. Because this module is used in safety-related applications, replacement and commissioning should follow the plant’s approved maintenance procedures, including checks of the controller configuration and the relevant safety functions. Confirm actual condition and test evidence with the supplier before installation.
Product Introduction
The ALSTOM UT129C-1 (C0201450) is a legacy CPU module for ALSPA CE2000 R5 controllers. It provides local processing and 1 Mbps copper WorldFIP communications for control and I/O functions, including documented boiler-protection applications.
When sourcing a replacement, verify hardware revision, firmware, and network type against the installed unit. This is especially important in safety-related systems, where hardware compatibility alone does not establish that the complete controller will operate correctly.
Key Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Alstom |
| Model | UT129C-1 |
| Alternative designation | UT129C1 |
| Manufacturer reference | C0201450 |
| Product type | CPU / controller module |
| Control platform | ALSPA CE2000 R5 |
| Processor | Motorola 68020, 33 MHz |
| Program memory | 1 MB REPROM |
| RAM | 512 KB battery-backed RAM |
| Network controller | FULLFIP2 |
| Field network | Copper WorldFIP |
| Network speed | 1 Mbps |
| Module management capacity | Up to 16 I/O or communication modules |
| Synchronization | Synchronization input provided |
| Firmware variants | U20/U30 V M03.01 and VM.07.02; confirm exact version |
| Operating voltage | Confirm against the applicable hardware documentation |
| Operating temperature | Confirm against the applicable hardware documentation |
| Installation | Compatible CE2000 controller assembly |
| Condition | Confirm actual condition with supplier |
UT129C-1
Related Products
| Model | Description |
|---|---|
| ALSTOM UT150-1 | Related controller family using a different WorldFIP physical-layer arrangement; not a direct substitute for the UT129C-1 on the same network segment. |
| ALSTOM R5 | Controller platform for which the is specified. |
| ALSTOM I/O modules | Compatible-platform I/O components; exact models depend on the controller configuration. |
| ALSTOM communication modules | Related communication components used within the controller architecture. |
| ALSTOM firmware variants | U20/U30 firmware versions that must be matched to the installed application and hardware revision. |
Frequently Asked Questions
Q1: What is the ALSTOM used for?
It is a CPU module for the ALSPA R5 platform, with documented use in safety-related applications such as boiler protection.
Q2: What field network does it support?
The documented variant uses copper WorldFIP at 1 Mbps. Confirm the physical interface on the installed module before connecting it to a network.
Q3: Is interchangeable with UT150-1?
Do not assume so. The documentation warns against using the and UT150-1 on the same WorldFIP network segment because their physical-layer arrangements differ.
Q4: Does firmware need to match the existing controller?
Yes. Confirm the installed U20/U30 version and hardware revision before sourcing a spare. Request the exact firmware variant from the supplier where possible.
Q5: Can the module be replaced while the system is running?
Do not assume hot-swapping is permitted. Follow the maintenance instructions and the site’s approved isolation, redundancy, and safety-system procedures.
Q6: What should be checked before purchase?
Verify the marking, C0201450 reference, hardware revision, firmware, connector condition, and available test records. Ask the supplier to confirm the module has been tested for the intended configuration.
Q7: What is the main risk when replacing this module?
A mismatch in hardware revision, firmware, or WorldFIP interface can prevent correct communication or controller operation. In a safety application, validate the complete replacement and associated safety functions before returning the system to service.
