TDC3000 Reverse Engineering Consulting
Even with minimal or outdated documentation, we provide a full, accurate picture of your TDC3000 system (LCN, AM/APM, CL programs, point database) through our structured consulting process.
Our Step-by-Step Consulting Process
- Full system backup (GUS, LCN, AM/APM, CL programs, point database)
- Document all LCN nodes, AM/APM modules, and I/O mappings
- Extract and catalog Control Language (CL) programs and point configurations
- Create cross-reference reports for every point and logic block
- Build plain-English functional specification for each major process area
- Map legacy points to modern descriptive tags and data structures
- Develop phased migration roadmap and cutover guidance
Honeywell TDC3000 Reverse Engineering & Migration Checklist
| Phase | Item | Description |
|---|---|---|
| 1. Preparation | Full backup | LCN, GUS, AM/APM, CL programs, point database |
| 2. Hardware | Node & module inventory | LCN nodes, AM, APM, I/O mappings |
| 3. Logic | CL program extraction | All Control Language files and logic blocks |
| 4. Points | Point database mapping | Every point → modern tag name & scaling |
| 5. Functional Spec | Plain English | Cause & effect for every major process area |
| 6. Tag Database | Modern tags | Descriptive tags, alarms, engineering units |
| 7. Migration Plan | Phased cutover | Hot cutover or parallel operation strategy |
Pair this with our hot cutover strategies to modernize while your plant keeps running.
Where ROI saves you money on your TDC3000 migration
A modern migration already keeps your existing field I/O and wiring — that is the right approach. So the savings are not mechanical, they are commercial: the vendor still scopes and prices the migration to maximize their sale. With more than 25 years on the vendor side, we make sure you do not overpay for the migration you are already going to do.
Right-size the scope
Trim padded engineering, over-specified software, and licenses you won’t use — while keeping the redundant controllers and I/O that protect uptime.
Negotiate the commercial deal
Insider knowledge of how vendors price migrations: list-to-net discounts, and license and support terms.
Cut the lifecycle / service agreement
A typical agreement runs about 10% to 15% of the DCS system value per year; we renegotiate it lower — recurring savings for years, not a one-time win.
Level competing vendor bids
Several vendors quoting the same job? We normalize every bid to one scope for a true comparison, expose the padding and change-order traps, and use the competition to cut your price.
Phase to your budget & turnarounds
Remove the vendor’s end-of-life deadline leverage; defer non-critical scope to later capital cycles.
Owner’s representative through delivery
Review proposals, FAT / SAT, and control the change orders and overruns where migrations quietly bleed.
On an average 10,000 I/O migration: roughly 20–25% off the project cost, plus about $70–90K per year off the lifecycle agreement — and ROI’s fee is a fraction of what it saves you.
Illustrative · anchored to your actual vendor proposalThe technical approach above is the method that keeps a migration efficient; this is the money — making sure the deal itself is right. We bring both to the table before you sign.
Get the full breakdown: Cost-Effective Approaches (PDF) · Migration Savings (PDF)