Err 255 while uploading modules

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Err 255 while uploading modules

#1 Post by Koen » Thu Aug 30, 2018 10:09 am

If you see Err.255 when programming or verifying a module, this can have several causes:

First, check that the serial number has been typed in correctly as shown on the sticker on the module or on the box. A serial number always consists of 6 digits or 10 hexadecimal characters (eg 0006B01ADE) of which the first 4 determine the module type.

Perform a test via "Tools / Communication Check". Type in the last 6 digits of the serial number and click on "Start Module Test". With perfect communication with this module you should see a nice flat line at 100%. If you see a flat low line, then there is never communication. If the line is pulsed, then there is poor communication. Then check whether the bus voltage (+/- 14V) is still correct on the module or check the wiring. Try communicating with the module directly to the controller with 2 short bus wires (without any other connected module) before sending it back via our RMA procedure.

A number of modules can send their serial number:
  • All SWC variants can be searched via "File / Modules / Search for modules". After clicking on "Start search" all connected switches will flash blue. When pressing any button on the switch, it will transmit its serial number.
  • All modules with a serial number with 10 characters can be read out via "Utilities / Communication Check" if 1 and only 1 module of this new type is connected to the bus by entering "FFFFFF" as the serial number.

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Joined: Sat Aug 24, 2019 8:25 am

Re: Err 255 while uploading modules

#2 Post by fransvandenabeele » Tue Sep 24, 2019 6:49 am


does this also apply for the old audio modules?
Serial is 990029.

Frans Vandenabeele
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