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171CCC9x030 M1E Processor IEC Exec. Upgrade to v.1.21

Release Notice

The purpose of this resolution is to inform Momentum M1E users that the IEC Exec. has been upgraded to version 1.21.


Goals and Symptoms

Fixes problems where the M1E could crash with an error code 0835 if one segment is configured.

  1. Web page applets would not be displayed in a browser only if the web pages were downloaded to the M1E using the Web Loader Utility on a Win98 Operating System.
  2. Supports classfull addressing.
  3. 'M1E I/O Status' web page is misleading. A single generic Momentum I/O base displays the same LED pattern for the various modules available. These LED's only show the first I/O mapped input and output word, regardless if its an analog module or a discrete base. A new applet will display 4x and 3x register data.
  4. Fixes a potential problem when used with a 172JNN21032 Modbus Option Adapter, an M1E may crash immediately after a Start command is issued to the processor.
  5. New feature allows sockets to remain open using the MSTR function block. (requires Concept 2.6 SR2)
  6. Adds MBP_MSTR function block option that allows a connection to remain open. It is only available for the following EFBs:

Facts and Changes

This resolution affects 171CCC98030 and 171CCC9603 processors using the IEC Exec.

  • Note: It is recommended to power cycle the M1E immediately after downloading an Exec.

Causes and Fixes

Installing IEC Exec. v.1.21 resolves the above mentioned issues

Legacy KB System (APS) Data: RESL169827 V1.0, Originally authored by on , Last Edited by on
Related ranges: Modicon Momentum
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