If your SNMP client displays ComBricks OPC data as 'bad', this Knowledge article explains what to do about it.
APPLICABLE PRODUCTS
ComBricks Head Station 1A, 1B, 1C
ISSUE
I am using KepWare OPC server / Matrikon OPC / UAExpert to retrieve OPC data from the Combricks. Some tags are marked as 'bad' while some others are 'good'. What can I do?
POSSIBLE ANSWER
ComBricks only allows retrieval of 1 tag at a time, and most clients are setup to retrieve more than 1 (perhaps up to 25) at a time. If you set your client to retrieve 1 tag, all items will have a 'good' status.