LonTalk Network Interface Module Type 6 (NIM-6)

Features and Benefits

  • High-Performance Dual-Processor Architecture
  • Can Concurrently Run Neuron C and Intuitive Graphically Programmed Applications (Design Pad)
  • Supports all LonTalkTM Services and Network Variable Types
  • Configured with Familiar Echelon Tools (LonMaker, NodeBuilder)
  • Multiple NIMs Can Be Combined to Form Gateway, Bridge, Routing, and/or Redundant Connection Functionality
  • -40°C to +65°C (-40°F to +149°F) Operating Range
  • MIL-STD-901D, MIL-STD-167B, MIL-STD-461E
  • Supports Hot Swapping

The Chameleon TP/FT-10 Network Interface Module (NIM-6) provides seamless connectivity to ANSI 709.1 (LonTalk) compliant devices. It uses a standard Neuron©processor to support all network services and all variable types defined by the standard.  It also incorporates a high-performance 32-bit RISC processor with multi-tasking real-time operating system to execute computationally-intensive applications and to interface with other modules in the Chameleon family.

Chameleon NIM-6 modules are configured and commissioned with the familiar suite of Echelon development tools (LonMaker, NodeBuilder).  User programs can be written in the Neuron-C language and/or using Design Pad, an intuitive graphical programming tool for real-time data acquisition and control applications.

A Design Pad program (called a schema) is a collection of function-block and/or state-transition diagrams that represent the control algorithm that the device is to execute. Design Pad contains various LonTalk networking function blocks that provide a simple interface to the Neuron Chip and provide support for most SVNTs and Neuron-C data types.  Since application programs can execute concurrently on the Neuron Chip and RISC processor, the computational workload can be divided between the two in any fashion.

Chameleon’s multi-processor architecture allows considerable flexibility in the use of NIM-6 modules: (1) They can serve as a standalone high-end application processor node on a LonTalk network with connectivity to other inexpensive (and computationally-limited) LonTalk devices. (2) They can be arranged with other Chameleon I/O modules to create a high-end Programmable Automation Controller (PAC) solution. (3) They can be combined with other Chameleon networking modules to create a gateway between multi-protocol network segments or to create a bridge between multiple LonTalk segments (using the internal high-speed backplane to transfer data between modules). For example, the NIM-6 LonTalk module can operate alongside a NIM-1 Modbus module, or NIM-7 PROFIBUS module, or NIM-2 Ethernet module executing a supported TCP/IP protocol (e.g., Ethernet/IP), to seamlessly transfer data between networks.

As with all Chameleon modules, NIM-6 units are hot-swappable: when a new module is inserted into a Chameleon node, its neighboring modules automatically transfer the schema program it is to execute—there is no need to shut off the power or to detach connectors.  They also provide unequaled ruggedness.  They are specifically designed for sustained operation in severe environments, including those characterized by extreme shock, vibration, electro-magnetic interference, temperature, and/or humidity.  Its fully-sealed enclosure (sealing end-caps not pictured) allows the module to operate while submerged.

Operating Ambient Temperature Range -40°C to 65°C
Storage/Transport Ambient Temperature Range -40°C to 85°C
High Impact Shock MIL-STD-901D, Grade A
Mechanical Vibration MIL-STD-167B, 0-50Hz
Electro-Magnetic Interference MIL-STD-461E
Facial/Housing Protection NEMA 1,2,4,4X,5,6,12,12K,13
Maximum Power Consumption 3W
Primary CPU 33 MHz 32-Bit ARM Core
Memory  1 MB SRAM, 1MB Non-Volatile Flash
Secondary Neuron CPU Cypress Semiconductor CY7C53120L8
Neuron Characteristics

• Three 8-bit pipelined processors for concurrent processing of application code and network traffic
• 4KB SRAM for buffering network data, system, and application data storage
• 8KB Flash memory with on-chip charge pump for flexible storage of configuration data and application code
• 16KB ROM containing LonTalk network protocol firmware

Network Transceiver FTT-10A
Network Capacity Maximum 64 Transceivers per Segment
Network Topology Free, Star, Bus, or Loop
Baud Rate 78 Kbit / Second
Signal Electrical Isolation from Control Circuitry

(60 Seconds)

1000 VRMS, 0-60Hz, 60 Seconds
Signal Electrical Isolation from Control Circuitry (Continuous) 277 VRMS, 0-60Hz, Continuous
Supported Cable Diameters Two glands 0.24”-0.47”; two glands 0.16”-0.31”
Supported Wire Gauges 16-28 AWG
Network “Service” Button Single button on Front Panel
Status Readout One three-color (red/yellow/green) Indicator
IR Wireless Interface

115kbps SIR

Weight 1.3 lbs
Front Panel Dimensions 2.5” W x 6” L
Enclosure Height 3″ H

The following part numbers can be used when ordering the LonTalk Network Interface Module Type 6 (NIM-6).

The following base module part numbers include the enclosure with EMI wiring glands, active board, and wiring hub:

Fairmount Part Number Description
NIM-6 or 01012-017 Chameleon LonTalk TP/FT-10 Network Interface Module Type 6

Spare/Replacement Parts:

Fairmount Part Number


11050-200 Chameleon LonTalk TP/FT-10 Network Interface Module (NIM-6) Active Board and Half-Size Cover — Replacement faceplate for NIM-6
11051-100 Chameleon LonTalk TP/FT-10 Network Interface Module (NIM-6) Wiring Hub Assembly — Replacement W/H for NIM-6

See the Selection and Ordering Guide for additional information.