frenchy
Member
Hello there,
Using the Micrologix 1100 with the 1762-IT4 Thermocouple/mV input module, is it possible to have the ladder logic program update the analog input filter frequency dynamically during execution?
I would like to have the ladder program be able to jump between 10Hz (slow but stable) and 60Hz (faster but less stable).
I know how to do the "initial setup" in the IO Configuration dilog where you can set the filter frequency....but what are the addresses for having the program change these 3 bits? The manual says that these 3 bits are in the "Configuration Data File" bits 0,1 and 2....but how do I access them from the user program?
BONUS QUESTION: What is the best instruction to write to the lowest 3 bits of a configuration word? Should I do it bit-by-bit or all 3 bits at once?
Thank you very much!!
frenchy
Using the Micrologix 1100 with the 1762-IT4 Thermocouple/mV input module, is it possible to have the ladder logic program update the analog input filter frequency dynamically during execution?
I would like to have the ladder program be able to jump between 10Hz (slow but stable) and 60Hz (faster but less stable).
I know how to do the "initial setup" in the IO Configuration dilog where you can set the filter frequency....but what are the addresses for having the program change these 3 bits? The manual says that these 3 bits are in the "Configuration Data File" bits 0,1 and 2....but how do I access them from the user program?
BONUS QUESTION: What is the best instruction to write to the lowest 3 bits of a configuration word? Should I do it bit-by-bit or all 3 bits at once?
Thank you very much!!
frenchy