Reliable, Field-Proven Control Solutions for Midstream Operations
In compression, control systems are everything. They manage performance, protect assets, and ensure uptime across your operation. At RES, we supply trusted control solutions for midstream energy companies — supporting everything from new installations to retrofits, troubleshooting, and long-term system reliability.
Whether you’re an engineer designing a system or a procurement professional sourcing dependable components, we make it easy to get the right solution, fast. And if you don’t see exactly what you need on this page, we’ll source it.
RES delivers a full range of compression control products and solutions — supporting both standard configurations and custom requirements. We help ensure compatibility with your existing systems and operational goals.
Products and solutions include:
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Allen-Bradley, Altronic, and Murphy are our primary represented lines — but our sourcing capability doesn’t stop there. If you need a legacy Woodward governor, a third-party RTU, a Modbus gateway, or a another product, tell us what you’re looking for. We’ll track it down.
We partner with leading control system manufacturers known for performance in demanding oil and gas environments. These brands are widely used across midstream operations for their durability, availability, and field-proven performance.
PLC / HMI / DRIVES / INDUSTRIAL AUTOMATION
The global standard in industrial programmable logic controllers. Allen-Bradley’s ControlLogix and CompactLogix families are the backbone of modern compression automation — from single-unit wellhead packages to centralized multi-compressor control rooms. Their PanelView HMIs provide operators with intuitive, real-time visibility into equipment health and status.
RES supplies the full Rockwell portfolio including PLCs, HMIs, drives, I/O modules, managed switches, and power supplies. Allen-Bradley’s EtherNet/IP-native architecture makes SCADA integration straightforward, and their long product lifecycle commitments (typically 10+ years) protect your investment.
ENGINE IGNITION, MANAGEMENT & KNOCK DETECTION
For decades, Altronic has been the trusted name in reciprocating engine ignition and control systems for the gas compression industry. Their DC-80 and CPU-95 series engine management systems are found on Caterpillar, Waukesha, Ariel, and Ajax compression units across North American midstream operations.
Altronic products are purpose-built for the demanding thermal and vibration environments of gas engine packages — not adapted from general-purpose industrial hardware. The DC-80 Distributorless Ignition System (DIS) is industry-standard on Caterpillar G3300, G3500, and G3600 series engines, with electronic timing control that enables fine-tuned detonation management and in-service misfire diagnostics.
INSTRUMENTATION, SAFETY SYSTEMS & REMOTE MONITORING
FW Murphy has been protecting compression equipment since 1939. Their product philosophy has remained consistent: simple, rugged, and reliable. The Murphy Swichgage® remains one of the most widely deployed engine protection instruments in North American compression, combining a direct-reading gauge with an integrated electromechanical shutdown switch — no PLC required.
For modern applications, the PowerCore EC7 and SiteScan SS3 bring Murphy’s reliability to networked, data-driven environments. The EC7 functions as a standalone engine controller or integrates with a host PLC, while the SS3 provides cloud-ready remote monitoring without requiring a full SCADA deployment.
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Typical product selections by application type. Contact RES for application-specific recommendations — every installation is different.
Application | Product | Make | Key Spec | Haz. Area | Status |
|---|---|---|---|---|---|
Recip. Engine Ignition | DC-80 Series | Altronic | Up to 16 cyl, 12/24V | Cl I Div 1 | ✓ Stock |
Engine Mgmt / Shutdown | CPU-95 Series | Altronic | Modbus RTU, J1939 CAN | Cl I Div 2 | ✓ Stock |
Knock Detection | HEI + Knock Ctrl | Altronic | Detonation sensing | Cl I Div 2 | ✓ Stock |
Compressor Unit PLC | CompactLogix 5380 | Allen-Bradley | EtherNet/IP, 16 I/O | Panel-Mounted | ✓ Stock |
Multi-Unit Station | ControlLogix 5580 | Allen-Bradley | 40 MB, redundancy | Panel-Mounted | Lead Time TBD |
Operator HMI | PanelView Plus 7 | Allen-Bradley | 12″, 1280×800 | Panel-Mounted | ✓ Stock |
Engine Protection | PowerCore EC7 | Murphy | J1939, Modbus, CAN | Cl I Div 2 | ✓ Stock |
Pressure / Temp Monitoring | PT100 Transmitter | Murphy | 4–20mA, 0–5000 PSI | Cl I Div 1 | ✓ Stock |
Remote Site Monitoring | SiteScan SS3 | Murphy | Modbus TCP, cellular | Cl I Div 2 | ✓ Stock |
* Availability and lead times subject to change. Contact RES for current stock and pricing. Part numbers are representative — configurations vary.
One business day response guaranteed. Submit a part number, description, photo, or your full BOM — we’ll get back to you with availability and pricing.
Compression control systems are the electronic brain of a natural gas compressor package.
They govern engine startup and shutdown sequences, monitor operating parameters in real time, respond to fault conditions, and provide operators — whether on-site or in a remote control room — with visibility into the health and performance of their equipment.
In midstream energy applications, where compressor uptime directly translates to throughput and revenue, the reliability and capability of the control system is every bit as important as the compressor itself. A robust control architecture doesn’t just prevent costly shutdowns — it can also enable predictive maintenance, fuel optimization, and compliance with emissions reporting requirements.
Rockwell Automation’s Allen-Bradley platform has become the de facto standard for skid-mounted compression PLC systems.
The CompactLogix family is widely deployed in single-unit packages and small gathering station applications. For larger, multi-unit installations or those requiring high-availability redundancy, the ControlLogix 5580 series is the professional’s choice.
Allen-Bradley’s EtherNet/IP-native architecture makes SCADA integration straightforward. Standard function blocks for gas engine sequencing and compressor protection logic are available from multiple certified integrators, reducing custom programming time significantly. FactoryTalk software extends the platform into full historian, alarming, and reporting capability.
Altronic products, now part of the HOERBIGER Group, are purpose-designed for the reciprocating engine environment.
Unlike general-purpose PLCs, Altronic’s CPU-95 and DC-80 systems are engineered from the ground up to withstand the vibration, temperature swings, and electrical noise characteristic of gas engine packages in field environments.
Knock detection is a critical — and often underspecified — function in large-bore gas engine operation. Altronic’s knock detection systems monitor individual cylinders for detonation events, enabling the engine management system to retard timing or shed load before damage occurs. This capability is especially important for lean-burn engines operating on variable-quality wellhead gas.
FW Murphy’s legacy in the oilfield dates to 1939, and their product philosophy has remained consistent: simple, rugged, and reliable.
The Swichgage® remains one of the most widely deployed engine protection instruments in North American compression — combining a direct-reading gauge with an integral electromechanical shutdown switch.
For modern, networked applications, the PowerCore EC7 and SiteScan SS3 bring that same reliability into data-driven environments. The EC7 can function as a standalone engine controller or integrate with a host PLC, while the SS3 enables cloud-ready remote monitoring without requiring a full SCADA deployment — making it a cost-effective choice for remote or low-production sites.
The right solution depends on the type of driver (electric motor vs. natural gas engine), the number of units at the site, existing SCADA infrastructure, hazardous area classification, and operator preference for maintenance simplicity vs. advanced functionality.
The RES team brings field experience across all three represented lines. We’re not just a parts counter — we can help you think through the architecture decision before you commit to hardware, and we can connect you with qualified panel shops and system integrators in your region.
RES control solutions are used across the full range of midstream compression applications:
We supply a wide range of control solutions including PLC systems (Allen-Bradley ControlLogix and CompactLogix), ignition controls and engine management (Altronic DC-80, CPU-95), and monitoring and protection instrumentation (Murphy PowerCore, SiteScan, Swichgage). We also source from a broader network for requirements beyond our represented lines.
Yes. Whether you have a part number, a system description, or just a problem to solve, our team can help identify and source the correct component. For legacy or discontinued parts, we can often cross-reference equivalents or locate old stock through our supplier network.
No. Allen-Bradley, Altronic, and Murphy are our primary represented lines, but we can source from a much broader network depending on your needs. If you need Woodward, Emerson, Phoenix Contact, or other brands — or something discontinued — ask us. We’ll respond within one business day.
Absolutely. We regularly help customers locate and expedite critical components to minimize downtime. Call us directly for time-critical needs — our team is available Monday through Friday, 7AM–6PM CT, with an emergency line available 24/7.
Yes. We specialize in helping customers find replacements, cross-referenced equivalents, or upgrade paths for older or obsolete control systems. This includes discontinued Altronic models, legacy Allen-Bradley platforms (SLC 500, PLC-5), and hard-to-find Murphy instruments.
Yes — Altronic ignition and control products are among the most common aftermarket solutions for Caterpillar G3300, G3500, and G3600 series engines. The DC-80 DIS system is specifically designed for high-output, large-bore gas engines. Confirm your engine model and cylinder count when requesting a quote so we can specify the correct harness configuration.
Many Murphy instruments — including the PT series pressure transmitters and select Swichgage models — are rated for Class I, Division 1, Group D (natural gas) environments. The PowerCore EC7 and SiteScan SS3 are typically rated for Class I, Division 2. Confirm the specific hazardous area classification required for your installation before ordering. We can provide UL and CSA certification documentation on request.
Lead times have stabilized significantly since the supply chain disruptions of 2021–2023. Many common CompactLogix and ControlLogix modules are available from stock. Some specialty modules and chassis sizes may still carry extended lead times. Send us your BOM and we’ll provide current, accurate availability.
