Why do measured input values for PCD2.W3x5 / PCD3.W3x5 cards "freeze"

FAQ #102043

It can occur that the value measured from the PCD2.W3x5 / PCD3.W3x5 modules 'freeze' during a time of about 1 to 2 minutes.

Afterwards, the modules function again and the measured analog input value is updated again in the application program. 

Affected modules:

PCD3.W3x5 cards manufactured between 1801 and 1916. (FW 1.04.00 or FW 1.04.02)
The manufacturing date is marked on the white sticker on the right side of the module.



Symptoms:

The measured value of the PCD2.W3x5 / PCD3.W3x5 cards can freeze freezes for 1 or 2 minutes. The measured value stays on the same value, there is no change. This will occur on average 1-3 times during 3 hours. This is due to a malfunction of the firmware of the module.

Afterwards, the modules function again and the measured analog input value is updated again in the application program.


Solution:

There is no isse for 'standard' HEVAC applications where no fast reaction time (< 2 minutes) is required.

For critical applications where this malfunction is not acceptable, we recommend the exchange of the affected PCD2.W3x5 / PCD3.W3x5 modules with new modules (manufacturing date 1916 or newer)
 

To replace the affected modules:

Order new PCD2.W3x5 / PCD3.W3x5 modules from SBC and send the affected modules back to SBC via RMA.

In the RMA form, note 'Advance exchange' with the remark '8D-SBC-19-001' in the comment.

The affected PCD2.W3x5 / PCD3.W3x5 modules will then be credited to you.

 

Categories

PCD2 / Wxxx

PCD3 / Wxxx

Last update: 09.02.2021 09:52

First release: 02.02.2021 14:14

Views: 4

The requested software / document is no longer marketed by Saia-Burgess Controls AG and without technical support. It is an older software version which can be operated only on certain now no longer commercially available products.

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