Apart from the above list, NetDecoder also includes decoders for these protocols:



  • Easy-to-use scripting language to write custom decodes for proprietary protocols and/or extensions to existing protocol decoders.

Data Capture Options

  • Supports serial data capture up to 921.6K bps.
  • Serial data capture requires Frontline's RS-232 ComProbe II or RS-422/485 ComProbe. Both the ComProbes connect to the PC via USB ports.
  • Data Highway Plus (DH+) data capture requires Rockwell Automation's 1784-U2DHP.
  • DH-485 data capture requires RS-485 serial card.
  • DeviceNet data capture requires SST's DeviceNet interface cards or RA's 1784-U2DN.
  • ControlNet data capture requires RA's 1784-PCC or 1784-U2CN.
  • Captured data includes data bytes, control signals, and error conditions.
  • Capture data to a single file or a series of files.
Display Windows

Data Display Characteristics

  • Frame/Packet contents are decoded to the byte and bit level.
  • Characters can be displayed in ASCII, EBCDIC, or Baudot.
  • Nonprintable characters are displayed using hex and mnemonics.
  • Supported radices include hex, octal, decimal and binary.
  • Decoded data formats supported include 16 bit Integers, 32 bit Integers, IEEE 32 bit Floating Point, 32 bit Reverse Floating Point, and ASCII.

Display Filters

  • Display filter parameters include filter-in or filter-out protocols, messages, data patterns, and advanced mode for complex filters.
  • Quick filters for the Frame Display window includes protocol filtering in and out, filtering on the summary pane, and filtering on messages.
  • Tab filters in the Frame Display allow you to filter in frames that contain a specific protocol layer.

Capture Filters

  • Ethernet, ControlNet and DeviceNet analyzers in NetDecoder support capture filters.
  • ControlNet capture filters are defined on the frame MAC ID, Producer/consumer MAC ID, Frame Type (Scheduled, Unscheduled or Moderator) and Frame status (Good, Bad, Null).
  • Ethernet capture filters are defined on node pairs, MAC or IP addresses, protocol type, and message type or data pattern.

Start and Stop Triggers

  • The ControlNet analyzer using RA's 1784-PCC card supports start and stop triggers.
  • The DeviceNet analyzer using RA's 1784-U2DN and SST's interface cards support triggers.

Data Export

  • Export Events or Frames into text or binary format.
  • Exports the contents of the Frame Display's Summary Pane into CSV format.
  • Export output is suitable for importing into a spreadsheet, database or other post-process program for intricate data and protocol analysis.
  • Print the Summary Pane and/or Decode Pane information.

Network Statistics

  • Shows amount of data on the network (number of characters/bytes/events/frames/messages).
  • Displays error information.
  • Provides information on data rates (characters per second, frames per second).
  • Provides network utilization information.
  • For serial networks, it provides statistics for both the DTE/Master/Host and DCE/Slave/RTU ends.
  • Provides current, peak and average values for all network statistics metrics.


  • Provides both absolute and relative displays of event timing for bytes and frames/messages.
  • Calculates time intervals between bytes and between frames/messages (delta time).
  • Timestamp resolution is 100 nanoseconds.


  • Search at the byte or frame level.
  • Find data by timestamps.
  • Locate errors.
  • Discover specific data patterns (patterns include wildcard characters at the bit level, nibble level, and byte level).
  • Search decoded text, with or without wildcards.

Data Transmission

  • Includes special Transmit program to send data over Ethernet cards and Serial ports.
  • The Ethernet transmit program uses the PC's NIC card.
  • The Serial transmit program requires a serial port on the PC.
  • The program can transmit data strings and files one time, multiple times, or continuously.
  • Data transmission delays can be inserted in millisecond, second, or minute increments.
  • The serial control signals can be set on or off.

Collaboration Features

  • Add notes to your capture files describing the contents of the data. Use the notes for archiving network information, or to resolve problems and sharing information between people.
  • Add bookmarks to highlight important bytes and frames for easy access. Use these bookmarks to share information and capture files between team members.
  • I/O configurations, protocol stacks, and filters can be saved for future use.

Help & Documentation

  • Comprehensive product help provides operating instructions.
  • Quick Start Guide enables rapid product set-up and operation.
  • Manuals to provide additional technology specific information.
  • Documentation is installed with the product and is also available online.

To learn more about diagnosing and troubleshooting industrial networks order your copy of NetDecoder online.