検索機能を使用して 500 を上回る Kepware の知識ベース記事の中から閲覧します。結果を絞り込むか、クエリーを下部の検索フィールドに入力します。

解決策が見つからなかった場合には、当社の PTC eSupport Portal で追加資料を確認することもできます。eSupport Portal へのログインを要求された場合、My Kepware の認証情報を使用できます。My Kepware アカウントが必要ですか? こちらで作成

各種検索方法:
View All Solutions

Kepware Knowledge Base: Solution


"Unable to read block" errors after ControlLogix v30 firmware upgrade


Last Update: 2018/11/12
Problem:
After upgrading a ControlLogix device to firmware version 30, KEPServerEX reports errors when trying to read Boolean arrays from the device for several pre-defined structures.

Cause:
The version 30 firmware upgrade changes Boolean arrays of tags in several pre-defined structures to a single Long tag. This means the address and type for those tags are now incorrect.
For example, a tag utilizing the SFC_STOP pre-defined structure has a 32-bit array of Boolean tags named Status before upgrading to firmware version 30. After upgrading the device to firmware version 30, there is only one Long tag named Status.

Solution:
The bits in the new Long tag for each affected pre-defined structure can be accessed using the .bit notation. For example, to get the first bit of the Status tag for a SFC_STOP tag group, enter the address as SFC_STOP.Status.0 as type Boolean.

Related Products
Allen-Bradley Suite