Caterpillar® HMI

CDL Gateway-HMI

CDL Gateway HMI

A protocol converter and a full featured HMI that provides direct access to engine monitoring parameters from Caterpillar® equipment via many different protocols and memory map formats. The HMI offers all the same features of the CDL Gateway™ with the addition of an operator interface.

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CDL Gateway HMI as a Caterpillar® HMI Option

The CDL Gateway™ HMI (Human Machine Interface) is a full featured HMI that provides direct access to engine monitoring parameters from Caterpillar® equipment. This product works as a Caterpillar® HMI solution, and communicates over many different protocols and memory map formats. The HMI offers all the same features as the CDL Gateway™ with the addition of an operator interface. It is used in applications where engine data needs to be displayed for local users and operators in addition to being accessed from a PLC or SCADA system. No intermediate devices are needed and little or no setup is required.

This HMI provides engine data, diagnostics, and event codes including text descriptions directly from the engine network into PLCs such as Allen Bradley, GE, or Siemens, with little to no programming being required with no intermediate devices. 

Feature List HMI8.20.15

As with all products in the CDL Gateway™ line, the HMI can be used to directly interface with popular generator sets like the EMCP II and EMCP II+, popular Gas Industrial Engines such as the G3600 and G3500 as well as the new GCM34. Engine data can be provided directly into Allen-Bradley, GE Fanuc, and Siemens PLC's with virtually no programming required. The CDL Gateway™ and its line of HMIs eliminate the need for the CCM Module, the PL1000E, and the ProSoft card needed to convert Modbus into Allen-Bradley PLC's.

Monico’s Caterpillar® HMI Solutions

The HMIs have double the backlighting of indoor units for easy viewing outdoors and in bright sunlight, are outdoor rated with UV protection and have a full-feature touch screen with complete graphics capability. All of our HMI products are approved for hazardous locations installations under UL1604. 

This HMI is a very powerful device that can communicate in up to seven simultaneous protocols over four physical ports. It functions as an operator interface for engine diagnostic codes, text descriptions of fault codes and other critical maintenance information. The products; outdoor rating allows it to function as the system-wide operator interface for not just engine data, but also information from the system PLC, station PLC and other controller systems.

Caterpillar® Remote HMI Option

Many of our customers have their equipment in remote locations, and viewing an HMI remotely is a huge asset when diagnosing problems and troubleshooting. This HMI’s built-in web server, a SMTP/SMS mail server let you monitor remotely. With just internet access, you can access your HMI from anywhere, make adjustments and diagnose problems.  Not only does this make you more efficient, it allows you to know what technicians and equipment will be needed without multiple trips to visit your equipment on-site.


The CDL Gateway HMI is designed to communicate over CAT® Data Link and can provide the data collected from your SCADA System so that it can be accessed locally. Many SCADA Systems act as a central monitoring system for an entire site, but getting text descriptions of fault codes and other information from Caterpillar® equipment can require multiple steps and equipment as well as the need to access the operations and maintenance manual to translate the codes yourself. Our CDL Gateway HMI does that in one easy step and makes integrating CAT® equipment into your SCADA systems simple.

All of these features, combined with the abilities of our top-notch technical support staff, make Monico’s CDL Gateway HMI the best solution available for Caterpillar HMI needs and Caterpillar® remote HMI solutions. 

Available Host Interfaces

  • Modbus RTU & TCP/IP via Serial and Ethernet
  • PLC protocols including Allen Bradley, GE Fanuc, Siemens, BACnet and many more. 

Available Pre-Configured Versions

  • Allen Bradley Control Logix, SLC 500 and MicroLogix
  • Siemens S7/S5 via PPI, MPI and TCP/IP
  • GE 9030 and VersaMAX
  • Modbus RTU and TCP/IP
  • BACnet MSTP and UDP/IP

In addition to the preconfigured versions, we support many other protocols including:

  • CANOpen
  • DeviceNet
  • Ethernet IP
  • Garmin NMEA 0183
  • Honeywell
  • IDEC
  • Koyo
  • Mitsubishi
  • Omron
  • Profibus
  • Schneider
  • Telemechanique