adccommunitymod (AutomationDirect) asked a question.
Created Date: August 30,2018
Created By: Kyle
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Hi, I have a DL06 PLC with two discrete input modules (D0-16ND3); I have two issues. 1. One module only returns appears to signal on the first 4 inputs (X100,X101,X102,X103); whereas the other one reads all 16. I switched card-slot positions and the same card hard the same issue. Is this likely a faulty module? 2. My odd X's are paired. When I turn on X201, X205 is also on (and vice versa). Same occurs for the following pairs: X203/X207, X211/X215, X213/X217. Occurs on both cards. I did not put an application on the PLC. It may be wiring issue. Any advice on what the issue might be or how to troubleshoot it? Thanks!
Created Date: August 30,2018
Created by: Kyle
Hi,
I have a DL06 PLC with two discrete input modules (D0-16ND3); I have two issues.
1. One module only returns appears to signal on the first 4 inputs (X100,X101,X102,X103); whereas the other one reads all 16. I switched card-slot positions and the same card hard the same issue. Is this likely a faulty module?
2. My odd X's are paired. When I turn on X201, X205 is also on (and vice versa). Same occurs for the following pairs: X203/X207, X211/X215, X213/X217. Occurs on both cards. I did not put an application on the PLC. It may be wiring issue.
Any advice on what the issue might be or how to troubleshoot it? Thanks!
Created Date: August 30,2018
Created by: RogerR
On the first module do you have the common connected on each of C0-C3?
When you say turn on X201, this means an input is applied?
Created Date: August 30,2018
Created by: Kyle
Yes. To prove it I switch the extension modules and the one that works can read from those inputs.
Yes, that is what I mean. I probably use poor terminology.
Created Date: August 30,2018
Created by: bcarlton
Are you wiring directly or are you using a ziplink module? This sounds like miswiring especially commons.