Hello everybody,
I have a H_system including 2 CPU 400_H,3DI,1DO,1AO,1AI. Analog outputs are redundant. I used diode for redundancy purpose according to the circuit suggested by Siemens. Now, when I configure analog output module 0-20MA or 4-20MA both of these diodes will go to the active mode and I'm getting double value (for example: 40MA at maximum range). But when the analog output card is configured between 0-10v(works as a voltage supply) everything is OK and I have the correct value.I want to know that have you ever done redundancy with diodes??if yes, can you get 4_20 MA??
The order number of the card is 6ES7332-5HD01-0AB0 and it has redundancy capability.So,What's the function of these option in these cards?Do not they change current to voltage to solve this problem?
Now, I am really confused.I think,I have to write a program to divide the value but it is not a standard way.
please provide me by your feedback
Thanks in advance
I have a H_system including 2 CPU 400_H,3DI,1DO,1AO,1AI. Analog outputs are redundant. I used diode for redundancy purpose according to the circuit suggested by Siemens. Now, when I configure analog output module 0-20MA or 4-20MA both of these diodes will go to the active mode and I'm getting double value (for example: 40MA at maximum range). But when the analog output card is configured between 0-10v(works as a voltage supply) everything is OK and I have the correct value.I want to know that have you ever done redundancy with diodes??if yes, can you get 4_20 MA??
The order number of the card is 6ES7332-5HD01-0AB0 and it has redundancy capability.So,What's the function of these option in these cards?Do not they change current to voltage to solve this problem?
Now, I am really confused.I think,I have to write a program to divide the value but it is not a standard way.
please provide me by your feedback
Thanks in advance
