Overview
Current Software/Firmware for NWL ESP Control Systems
Customers can request firmware updates via email to: precipproducts@nwl.com.
| GDU Touchscreen | Version | Release Date |
|---|---|---|
| Global Display Unit – NWL HMI | (G20855A): v2.0.5.1 – PowerPlus / PowerPlus LP / SCR / GRC(G20855): v1.3.19.1 – PowerPlus / PowerPlus LP / SCR / GRC Note: v1.3.13 is the minimum version required to support PowerPlus LP! | November 7, 2025 Aug 1, 2023 |
| Precipitator Control Firmware | Version | Release Date |
|---|---|---|
| PowerPlus DSP | 4.36 (G20880-02 Control Module) 3.31 (G20845-01 Control Module) | December 16, 2025 December 17, 2025 |
| PowerPlus LP | 4.40 (D25690 Control Module) | June 8, 2026 |
| ESP Optimizer (SCR controller) | 6.07 (G20808-01 Control Module) | April 23, 2025 |
| 3-phase ESP Optimizer (3-phase SCR controller) | 8.02 (D25672 Control Board) | October 10, 2025 |
| Rapper Controller Firmware | Version | Release Date |
|---|---|---|
| GRC SmartCPU/DSP (G20650) | 5.02 | February 8, 2019 |
| SmartRap-DSP Module (D20659-xx) | 4.02 | November 28, 2017 |
| Distributed Control System Interface (DCSi) | Version | Release Date |
|---|---|---|
| DCSi-Gen 4 | 0.91 | May 7, 2021 |
| Precipitator Control and Management System ( PCAMS) | Version | Release Date |
|---|---|---|
| Pcamsnt 7.x | 7.0.0 (see release notes for upgrade instructions) | June 2, 2026 |
| Pcamsnt 6.x | 6.1.11 | December 16, 2025 |
Discontinued (legacy) products
| Precipitator Control Firmware | Version | Release Date |
|---|---|---|
| GVC Display (PowerPlus & SCR) | 3.12 (G20805 no rev) 4.20 (Transflective Display – (G20805A) 5.17 (Support for new DSP Processor – (G20805A and higher) | Jan 10, 2007 July 9, 2009 May 26, 2014 |
| PowerPlus DSP | 1.42 (G20845 Control Module) | July 14, 2015 |
| PowerPlus Optimizer | 99.18 | March 29, 2004 |
| ESP Optimizer (SCR controller) | 4.30 (G20808 Control Module) | July 23, 2010 |
| MicroPack III | 9.7 | March 12, 1999 |
| MicroPack III-188 | 1.5 | March 10, 1999 |
| Rapper Controller Firmware | Version | Release Date |
|---|---|---|
| GRC Display (HHP) ( G20828x ) | 3.01 4.13 (Transflective Display) 5.09 (Min v5.07 required for New DSP-SCPU) | June 27, 2006 July 10, 2013 May 29, 2015 |
| GRC SmartCPU Module (Legacy D20650-01) | 3.10 | July 11, 2015 |
| SmartRap Module (D20651-xx) | 2.09 | December 16, 2015 |
| Megarap II CPU Module | 9.21 | October 3, 2003 |
| Medium Frequency Control Firmware | Version | Release Date |
|---|---|---|
| GVC Display (ML Chopper) | 1.07 2.00 (Transflective Display) | September 29, 2003 January 13, 2006 |
| ML Chopper Optimizer | 99.11 | October 15, 2003 |
| Distributed Control System Interface (DCSi) | Version | Release Date |
|---|---|---|
| DCSi-Optimizer Gen III (legacy product) | 4.02 | July 16, 2012 |
| DCSi Lite (legacy product) | 3.9 | October 22, 2007 |
| DCSi Pro (legacy product) | 3.9 | October 22, 2007 |
| DCSi for GRC Gen III (legacy product) | 2.50 | February 18, 2011 |
| DCSi for GRC (legacy product) | 1.08 | November 2, 2007 |
Resources
Certifications
NWL is an AS9100:2016 and ISO 9001:2015 certified manufacturer of transformers and power supplies for industrial applications and also provides a CE Declaration of Conformity for its PowerPlus switch mode power supply (SMPS).
Related services
Related services
NWL provides service and support for electrostatic precipitators (ESP), power supplies, transformers and inductors.
If the NWL equipment was supplied or acquired as part of a system from another firm, please contact that company for any service needs. If they are unable to satisfy the service requirements, then contact NWL
Startup and Commissioning
NWL’s expertise goes well beyond the production phase. Our fully trained personnel are ready to help you get your new equipment connected, properly set up, and running efficiently. Our service technicians and engineers have traveled across the globe, working with customers from various backgrounds and experiencing every possible environment.
Maintenance and Repair
NWL products are available for purchase as spare or replacement parts. We offer tailor-made maintenance packages to ensure that the equipment operates efficiently, which includes yearly inspections, preventive maintenance and repair services from our technical and engineering experts. Additionally, upgrade or retrofit options to address part obsolescence, enhance system performance, design, and software, and support long-term cost savings are available to all our customers.
On-Call and Onsite Assistance
For on-call and onsite assistance, NWL’s dedicated team is there to take your call. We work around the clock, ensuring that you have the help you need whenever you need it. NWL offers global, remote support anytime, regardless of your time zone.
Custom Engineering Solutions
We offer customized engineered products and services to meet your reliability requirements. It starts with a good understanding of the product need and the application environment and solid collaboration between the parties involved.
