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KB49667
SNAP‑UP1‑ADS or SNAP‑B3000‑ENET reads zero counts from SNAP-IDC5Q
Revision:  2.0
Published:  5/1/2009
Applies To
SNAP-PAC-R1
SNAP-PAC-EB1
SNAP-UP1-ADS
SNAP-B3000-ENET
SNAP-ENET-RTC
SNAP-IDC5Q
Versions
Problem was discovered in module version:  
JDxxxxxxxDD and older
(44th week of 2004, or September 2004)

SYMPTOMS

If a SNAP-UP1-ADS or a SNAP-B3000-ENET always reads zero counts for a quadraduture encoder when using a SNAP-IDC5Q, then there may be an incompatibility problem between the brain and module used.

CAUSE

A hardware change to the SNAP‑UP1‑ADS and SNAP‑B3000-ENET brains affects compatibility with SNAP-IDC5Q modules. Some combinations of older SNAP-IDC5Q modules will not work with newer brains. The following table shows the possible brain and module combinations.

BrainModuleCompatible?

OlderOlderYes

OlderNewYes

NewOlderNo

NewNewYes

Older = Before September 2004
New = After September 2004

RESOLUTION

If you are experiencing this problem, contact Opto 22 Product Support.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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