EMCP 3 & 4 PLUS™ Gateway
WHAT IS EMCP 3 and 4 PLUS™ Gateway?
EMCP 3/4 Series Diesel Generator Remote Monitoring
Gathers data from the CAT® EMCP 3 and 4 series of diesel generators and places the values in contiguous registers. Features include a Virtual HMI Web Server, SMTP and SMS Mail Servers, Real-Time Data Logging, an FTP Server, and a Sync Server
The EMCP 3/4 Gateway PLUS™ is a step up from the Basic version, allowing you to take advantage of remote monitoring through the HMI web server. This Gateway also has SMTP and SMS mail servers, real-time data logging, an ftp server to retrieve data log files and a sync server to automatically sync log files with an IP connected computer. Full text descriptions for Diagnostic Codes are available.
The virtual HMI capability makes viewing live data simple through the use of the Google Chrome® Web Browser. Access is a simple as entering the correct IP Address. The web pages come pre-configured for basic data or can be custom built, and our free MonicoView II™ software can be used to create your own custom pages or to modify and customize the factory default pages.
Benefits & Features
- Pre-configured solution that provides basic HMI screens over the internet
- C-UL approved for Class I Div II groups A-D locations
- SMTP Server and SMS Server for email notification of alarms and shutdowns
- Up to 2GB Compact Flash card that will store up to 200 days work of data
- Sync Server to copy data log files with an external server located on the network
- FTP Server to upload data log files from any location on the network
- Time Manager to automatically sync the real-time clock to a server or external source
- Full diagnostic and fault code support with text descriptions
- LED indication lights for communication and power confirmation
As with this Gateway’s Basic version, set up is plug and play in most cases for a qualified technician with basic computer skills. Mounting is din-rail and 24 VDC power is required. Most set up needs and small customizations a customer may require can be dome in the field with our free MonicoView II™ software and are a simple task. If support is needed, this website has downloadable product support files that are easy to follow, or Monico’s Technical Support staff is a phone call or email away.
EMCP3/4 Gateway PLUS for Generator Remote Monitoring System
Because of the wide range of uses of the equipment, many of these generators are in remote locations. The EMCP3/4 Gateway PLUS provides the ability to remotely monitor and control these generators from any location. The email server is programmable to send email and SMS alerts to notify personnel of warnings and shutdowns. In addition, data from other devices within your diesel remote monitoring system can be converted and recorded on the same data map or made accessible through many other protocols through available ports.
As stated above, the PLUS version of this Gateway takes basic version’s abilities much farther. The real-time data logging feature has proven extremely valuable for troubleshooting tough problems that require continuous real-time data from the engine and connected equipment. The Gateway will accept up to a 2 GB Flash card that can store log files for 80 parameters every three seconds over approximately 200 days. These log files are stored in CSV formats for easy import into Microsoft Excel. The trend and historical data provided by this feature are extremely important for high value industrial equipment to provide high-fidelity troubleshooting history for accurate diagnostics. Even if you have a high bandwidth SCADA system, the on-board industrial data logger can serve as a critical backup in case of communications link failure.
Future-proof your monitoring system
Looking for the Next Generation of Industrial Monitoring?
Monico’s mCore® SDR is the powerful evolution of our trusted gateway technology — combining protocol conversion, edge processing, and remote connectivity in one intelligent device. With onboard analytics, flexible I/O, and seamless integration to the cloud or MonicoLive™, mCore® SDR gives you more visibility, control, and scalability than ever before.
How to Choose The Right Gateway
Monico Gateway Product Comparison – Gateways vs. mCore® SDR
| Feature / Use Case |  CDL Gateway™ |  CPC Gateway™ |  J1939 Gateway™ | EMCP 3 & 4 Gateway™ |  mCore® SDR |
|---|---|---|---|---|---|
| Primary Use | Monitoring Caterpillar® engines/gensets via CDL | Multi-device protocol conversion for varied industrial systems | Monitoring J1939 CAN-based engines and mobile equipment | Caterpillar® EMCP 3 & EMCP 4 controller data acquisition | Edge data acquisition, protocol conversion, analytics, and remote connectivity |
| Supported Protocols | CDL (Cat Data Link) + selected outputs | 100+ protocols (Modbus, Siemens, BACnet, DeviceNet, etc.) | J1939 + supported outputs | Proprietary EMCP 3.x and EMCP 4.x protocols + Modbus, Ethernet/IP, etc. | 100+ protocols (Modbus, Ethernet/IP, MQTT, OPC UA, BACnet, etc.) |
| Automatic Equipment Detection | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes |
| Edge Processing / Local Analytics | ❌ No | ❌ No | ❌ No | ❌ No | ✔ Yes – built-in logic engine, thresholding, event handling |
| Cloud Connectivity | ❌ Requires integration | ❌ Requires integration | ❌ Requires integration | ❌ Requires integration | ✔ Yes – native support for MonicoLive™, MQTT, Azure, etc. |
| Pre-configured Parameters | 400+ CDL registers | 400+ across multiple protocols | 100+ J1939 parameters | Pre-mapped EMCP 3 & 4 data points | ✔ Preloaded templates + customizable mapping |
| Real-Time Data Polling Speed | 20–60 parameters/sec | 20–60 parameters/sec | ~20 parameters/sec | Moderate polling speed depending on controller model | ✔ High-speed, multi-threaded polling |
| Custom Logic & Alerting | ❌ No | ❌ No | ❌ No | ❌ No | ✔ Yes – programmable alerts, conditions, and data-driven actions |
| USB Interface for Diagnostics | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes | ✔ Yes |
| Built-in I/O Capability | Optional modules | Optional modules | Optional modules | Limited or none | ✔ Native I/O: analog, digital, RTD, thermocouple, relay options |
| Ideal Equipment Type | CAT® engines, gensets (EMCP, 3400, 3500, etc.) | Engines, PLCs, drives, sensors in multi-vendor environments | Mobile equipment with J1939 CAN protocol | CAT® gensets using EMCP 3.x and EMCP 4.x control panels | Any industrial asset requiring smart monitoring, data forwarding, and edge intelligence |
| Simultaneous Protocol Support | 1 input + configurable output | Up to 9 protocols simultaneously | 1 input + configurable output | 1 or 2 protocols | ✔ Multi-protocol support, field + cloud |
| Installation Time | Minutes (plug-and-play) | Fast setup, custom config available | Quick install | Pre-configured, but may require protocol setup | ✔ Easy setup with intuitive tools + remote provisioning |
| Target User | CAT® engine operators | Integrators managing mixed-protocol environments | Fleet owners using J1939 equipment | Operators of CAT® gensets using EMCP controllers | OEMs, industrial operators, and anyone modernizing with edge-to-cloud monitoring |
| Hazardous Location Approval | ✔ Class I, Div II Groups A-D | ✔ Class I, Div II Groups A-D | ✔ Class I, Div II Groups A-D | ✔ Class I, Div II (where applicable) | ✔ Available in hazardous-location rated configurations |
Why Monico
Key advantages that set us apart
Your Data is Yours
Your data is securely collected and stored, always remaining under your control, so you can make informed decisions without concerns about data accessibility or third-party restrictions. We’re here to empower you with the insights you need, not limit how you use your data.
Preconfigured, No Coding Required
Our solutions come preconfigured and ready to deploy without the need for complex coding or development. This plug-and-play approach gets you up and running faster, no coding or data analysis required.
Modern Intuitive Platform
Our platform is designed with you in mind, combining modern functionality with an intuitive interface that simplifies data monitoring and visualization. With Monico, you’ll experience an easy-to-navigate system that makes it simple to access, interpret, and act on your data.
OEM-Agnostic, Multi-Protocol Support
Our gateways are preconfigured for your specific equipment and work seamlessly with most major industrial OEMs. With broad protocol support, they easily integrate into mixed fleets—no custom coding or complex setup required.
EASY AS 1,2,3
The Shortest Path to Real-Time
Actionable Intelligence™
1
Schedule a Demo
We’ll walk you through the process and share examples grounded in real data. No big sales pitch. We’ll discuss the problems you’re trying to solve, identify your needs and address your questions about ROI, security, the implementation process, and more.
2
Let Us Configure Your Solution
We won’t just sell you a gateway and wish you luck. Our powerful solutions are simplified for each customer by being pre-configured, down to the serial number of each asset. You’ll easily access data and gain insights from day one, without struggling with siloed data or differing protocols.
3
Count On Us for Support
Our job isn’t done until implementation is successful and you’re getting data exactly the way you want it, where you want it. We’ll provide installation, training and support. In addition, our online resource library is available 24/7.
FAQs
Frequently Asked Questions
What is the EMCP 3/4 Gateway™ used for?
The EMCP 3/4 Gateway™ is a pre-configured communication device designed specifically for Caterpillar® diesel generator sets using EMCP 3.x and EMCP 4.x control panels. It enables efficient extraction of real-time data for remote monitoring and diagnostics.
What kind of data does it provide?
The Gateway captures key operational parameters such as engine speed, oil pressure, voltage, frequency, and current. It also supports active (DM1) and inactive (DM2) fault codes, giving maintenance personnel the insights they need to proactively service equipment.
Is the EMCP 3/4 Gateway™ easy to install?
Yes. It’s DIN-rail mountable, requires 24 VDC power, and supports plug-and-play setup for most technicians. The built-in USB interface provides a clear, visual configuration tool for setup and troubleshooting.
Which communication protocols are supported?
The Gateway supports over 100 industrial protocols and can be configured to act as a Modbus RTU/TCP slave, a BACnet device, or to push data to Allen Bradley, GE Fanuc, or Siemens PLCs. It includes RS-232, RS-485, and Ethernet ports for flexibility.
Can this integrate with my existing monitoring system?
Yes. The Gateway outputs clean, structured data and supports most major industrial protocols, making it easy to integrate with your SCADA, PLC, or remote monitoring system.
What makes this gateway different from others?
Unlike general-purpose converters, the EMCP 3/4 Gateway™ is built specifically for CAT® gensets that use an S.A.E. J1939 link (instead of the CDL protocol). It gathers engine and electrical data, as well as DM1 and DM2 diagnostic codes, and maps that data into contiguous registers for easy integration with monitoring systems.
How many data points are pre-configured?
Each unit comes with 148 pre-mapped standard parameters and 180 system flags, ensuring robust monitoring coverage with minimal setup. Additional customization is possible using Monico’s free MonicoView II™ software.
Can it be used in hazardous environments?
Yes. The EMCP 3/4 Gateway™ is C-UL approved for Class I, Division II, Groups A-D hazardous locations — making it suitable for tough industrial and remote applications.
Is there a modern alternative to the EMCP 3/4 Gateway™?
Yes. While the EMCP 3/4 Gateway™ is an excellent solution for current CAT® gensets, Monico’s mCore® SDR offers enhanced capabilities like onboard analytics, cloud integration, and native support for edge processing — providing a future-ready path for generator monitoring and beyond.
How fast does the Gateway collect data?
It polls approximately 20–60 parameters per second, offering fast, responsive updates suitable for real-time monitoring and integration.
