SFB47, count value reset

[deividasn]

hei, am using SFB 47 with an encoder A/B, i call the SFB47 in the fc1, then fc1 call in the ob1
how to reset COUNTVAL in the sfb47?
i trying reset status comparator with RES_STS but its not works.

plc siemens 314c 2 dp.

[krank]

take a look to Siemens web site
https://support.industry.siemens.com/cs ... 0&lc=en-WW

if you have solution psot answer

[deividasn]

HI can you explane this

Input parameters not interconnected to the block (static local data)

Parameter Data RES_STS
type BOOL
Address 32.2
(instance
DB)
Description Value range Default Reset status bits
Resets the status bits STS_CMP, STS_OFLW,
STS_UFLW, and STS_ZP.
The SFB must be called twice to reset the status bit ??????

thanks