Siemens S7-1200 timer conversion from Time to s5time

The difference between a time and a S5 time is the 2 first bits.

A time is always in MS. A S5 time uses the first 2 bits to differentiate between 10MS (00) /100MS (01) /1S (10) /10S (11).

So if you want to convert from time to S5time, and have 1S resolution. Just divide your time by 1000 and then add W#16#2000 to it.


If you want more information on the time formats, search the siemens help files. (F1)
 
I don't think the 1200 supports S5 time. Even in the 300, it is mostly there for legacy support only.

What are you trying to do?
 
Hi

I new to PLC programming, scaling analog input potentiometer (0-10V) to Set a Timer pot between 7 -14 minutes , so first i programmed is s7-300 and Simulated it worked fine, method i did in s7-300 Analog input scale (min 7 -max 14) , mul real x 60000 to dint, dint to time, time to s5time but i can't do the same process in S7-1200

Thanks in advance
Ragu
 
[email protected] said:
Hi

I new to PLC programming, scaling analog input potentiometer (0-10V) to Set a Timer pot between 7 -14 minutes , so first i programmed is s7-300 and Simulated it worked fine, method i did in s7-300 Analog input scale (min 7 -max 14) , mul real x 60000 to dint, dint to time, time to s5time but i can't do the same process in S7-1200

Thanks in advance
Ragu
Click to expand...

In the 1200, there are only IEC style timer blocks, which just take TIME directly. There is no S5 time input.
 
Thanks MK42. what about scaling 4-20mA in S7-1200

this is the method i have followed is it Right ??

1) NORM_X ( int to Real)
(Min -0,in - Analog input value,Max- 27648)

2)Scale_X ( real to Dint (dint to round off the Real value))

(min -7,in - real, max -14 )


Thanks in Advance
Ragu
 

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