Hello;
I had some problem with S7-400 PLC. I think that PLC software was removed. But I'm not sure. We used CPU with RAM memory card. After the fault I removed it and inserted Flash memory card insteed of RAM Card. And I made reset to PLC. by the way, we solved this problem.
When I got this fault, CPU was stop mode and the stop led was lit. CP443-1 (communication card is related with SCADA)was stop mode. INTF and stop led were lit. fault1 led of CP441-1 (communication card is related with EDX machine) was red. you can find the picture of PLC in attachment.
Before the fault, We didn't remove Ram card, or we didn't make any upload or download operation. The battery of PLC was ok. What is the description of fault? what might be reason of it?
thanks for your helps
byee..
I had some problem with S7-400 PLC. I think that PLC software was removed. But I'm not sure. We used CPU with RAM memory card. After the fault I removed it and inserted Flash memory card insteed of RAM Card. And I made reset to PLC. by the way, we solved this problem.
When I got this fault, CPU was stop mode and the stop led was lit. CP443-1 (communication card is related with SCADA)was stop mode. INTF and stop led were lit. fault1 led of CP441-1 (communication card is related with EDX machine) was red. you can find the picture of PLC in attachment.
Before the fault, We didn't remove Ram card, or we didn't make any upload or download operation. The battery of PLC was ok. What is the description of fault? what might be reason of it?
thanks for your helps
byee..