Question

I can't edit control relays from data view with a D3-330 or D3-340. What am I doing wrong?

Answer

You're not doing anything wrong. The D3-330 and D3-340 use Direct Net protocol only. You can only write at a byte level with DirectNet. You must edit the entire R register containing the C bit you wish to change. You should examine the R register containing the C bit and edit the entire register with the BCD value that would reflect the bit pattern you're wanting. The D3-350 also uses DirectNet and you can do the same thing editing V-memory. Better yet, with the D3-350 you can switch to K-Sequence protocol and do bit level reads and writes.

---

FAQ Subcategory: CPU & Programming

This item was last updated on 2001-11-07
Document ID: 98

---

The information provided in the AutomationDirect knowledge base is provided "as is" without warranty of any kind. AutomationDirect disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall AutomationDirect or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if AutomationDirect or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion of limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.