I would like to ask the teacher how to modify the range of an S7-400 PLC
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A differential pressure transmitter at the site is broken, and a replacement one with a different range was installed. How can I modify the range in STEP7? Please provide the specific steps. Thank you
For example, say there is a pressure value that was originally 10 kPa; the program uses an * operation, which results in 10.0 (as a floating-point number). Now that the value is 20, it should also be changed to 20.0 in the corresponding place
Haven’t done this before? That’s a bit troublesome. 1. First, you need to find the program; usually, you start by looking on the screen and then locate it in the program list. 2. Once found, don’t change anything yet. There’s a glasses icon in the program menu – click on it to see if it’s the same program as the one used with the CPU. If not, there will be a prompt; pay close attention. 3. If it is the right program, make the changes, save them, and then download it
In step 7, range conversion is usually achieved through FC105; for the FC105 associated with this PIW address, you just need to modify the upper limit.
First, you need to find this program, then you need to find this point, and only then can you make changes