Hi,

if I set timer to S5#T100ms it has timebase 0.01ms or 0.1s? 

Thanks...

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Split from When S5T# type timers are updated in the cycle of CPU?.

Jihosaft

Hi,

if I set timer to S5#T100ms it has timebase 0.01ms or 0.1s? 

Thanks...

 Hi jihosaft,

0,1s

Regards

hag010

Hi,

s5t#100ms looks,in BCD,like this 0000_0000_0001_0000 and so I think it is 0,01s timebase...

have a nice day...

Hi together,

Siemens has a nice FAQ for S5Time:

https://support.industry.siemens.com/cs/de/en/view/22531788

and also

https://support.industry.siemens.com/cs/de/en/view/16528756

Regards,

Towome

Hi Jihosaft,

your code BCD is  0000 0000 0001 0000 = 10 decimal

time base is 00 = 10ms.

time value is BCD 0000 00001 0000 = 10 decimal

and we have   duration= time base * time value

therefore  duration = 10ms * 10 =100ms = 100ms/1000ms =  0,1s

because 1s = 1000ms

hope this helps

Hag010

hag010

Hi Jihosaft,

your code BCD is  0000 0000 0001 0000 = 10 decimal

time base is 00 = 10ms.

time value is BCD 0000 00001 0000 = 10 decimal

and we have   duration= time base * time value

therefore  duration = 10ms * 10 =100ms = 100ms/1000ms =  0,1s

because 1s = 1000ms

hope this helps

Hag010

 hi hag010,

he is asking for the timebase of the timer, not for the value. 

0000 0000 0001 0000 is meant.

And this is 10ms or 0,01s.

regards,

Hi,

thanks,I really wanted to know timebase,not the value....

some time ago with siemens S5 I used Time constant KT

for example:  resolution 10ms    KT 001.0 //10ms

                                                          KT 500.0 //500ms

                         resolution 100ms  KT 001.1 //100ms   

etc...so it was clear...

Have a nice day...

Jihosaft

Hi,

thanks,I really wanted to know timebase,not the value....

some time ago with siemens S5 I used Time constant KT

for example:  resolution 10ms    KT 001.0 //10ms

                                                          KT 500.0 //500ms

                         resolution 100ms  KT 001.1 //100ms   

etc...so it was clear...

Have a nice day...

With the Step7 software you only need to specify the time as for example S5T#5s. The compiler (or PLC run time) decides what resolution is used.

There is nothing stopping you however to build a WORD to the format you need with the most significant nible (4 bits) to specify your scale .. but is is not even close to what we had on the S5.

With some 3rd party HMI models it is needed to know and implement the above as they do not always support the S5T data structure.

..just my 2c
w

William_B

Jihosaft

Hi,

thanks,I really wanted to know timebase,not the value....

some time ago with siemens S5 I used Time constant KT

for example:  resolution 10ms    KT 001.0 //10ms

                                                          KT 500.0 //500ms

                         resolution 100ms  KT 001.1 //100ms   

etc...so it was clear...

Have a nice day...

With the Step7 software you only need to specify the time as for example S5T#5s. The compiler (or PLC run time) decides what resolution is used.

 Hello William,

you're right, it is the easiest method, but if we can write it in this format below, (which you surely know), I find several of Timer still written in this format in S7

  L     2#10000000000110 

  SV  T0

Hi

for HMI / SCADA purporses I have created block which convert value 0..32767 to S5Time.

it interprets it as time in seconds x 10 (in 99% cases resolution is enough).

Have 2 blocks: time as int --> S5Time and S5Time --> Time as Int.

the int value is displayed on hmi with one decimal point.