Cummins Engine Controller
Modbus (RTU and TCP)
This product is a plug and play solution for integration of a Cummins Diesel Engine Controller into a Modbus enabled Building Automation System. It is an alternate to using the Modlon product from Cummins.
Cummins controllers only support Lonworks. In addition a number of the Cummins data objects are non-standard and thus specific knowledge of the structure is required to use the data. This Gateway has been programmed so that it can process these non-standard engine controller objects.
The Gateway provides a large data set of objects that can be used for monitoring. In addition a couple of objects are provided for remote operation such as start/stop, alarm reset etc.
No Specialist Lonworks tools or Skills Required for installation
No commissioning and binding is required. If you donít know what that is, be grateful. If you do know what it is then we are sure you will appreciate the ease with which this solution can be deployed.
Commissioning and Binding are Lonworks jargon terms that refer to the process of allocating an address (commissioning) to the gateway. Binding means linking the variables that need to be transferred from one device (engine controller) to another (gateway) and vice versa. Normally this process requires specialist software and interfaces and is done using add on to the Microsoft Visio product.
This gateway can be installed, connected and made operational without specialist skills or tools. The gateway uses Lontalk Explicit addressing and Network management functions to read and write data. The only think that is required is the address of the engine controller. This can be obtained from the engine installer or using a procedure we provide.
Max Nodes Supported
| This gateway can process multiple engine controllers and/or ATSís
| Not supported or documented
FTT-10 twisted pair
1000 Network variable capability
UNVT or SNVT variable support
Explicit (Polled Mode) or Implicit (Bound
24 VAC Floating (voltage variation + 10%)
9-30 VDC @ 8W
Service Pin for LONWORKS Node identification
OPC server available
System integration services available
Operating temperature: 0-60oC (32-144oF)
Relative humidity: 10-95% RH noncondensing
Physical Dimensions (W x D x H)
3.9 x 3.9 x 2 in.
(100 x 100 x 50 mm)
0.4 lbs (0.8 Kg)
FCC part 15
Power, Run, System Error, Configuration Error
Ethernet connectionsĖ Tx/Rx communication activity
RS-232/RS-485 - Tx/Rx communication activity
Ease Of Configuration
The gateway is shipped pre-configured. In addition written instructions are provided on how to change key configuration elements such as Modbus Station number, baud rate etc.
Free Test Tool
Modbusbacnet provides a free license to the CAS Modbus Scanner. This software application can be used to test / document the Modbus Interface prior to integration into the Building System. Often with system integration there is a blame game when things donít work as expected. Use this tool to prove the interface works and insulate yourself.
Sample Data Points
Sample from 2100 Engine Controller
(Alternate address for same data)
Schematic and PDF Documents
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