Dear Sir or Madam,

I would like to retrieve the status from the DI 16x24VDC ST Digital Input Module (6ES7131-6BH00-0BA0). I work with a S7 400H and STEP 7.

I would like to recover the information of wire breakage, power supply voltage absent or low. What to do. I read that SFC 59, SFB 51 via OB82 could do the trick. But I do not know how to arrange it all.

Thanks in advance.

With best regards

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Split from ET200SP DI 8x24VDC HS 6ES7131-6BF00-0DA0 INPUT PROGRAMMING and
ET200 SP DIGITAL INPUT CARD 8 / 16 DI

Hi,

here are some examples with SFC 51:

How can you read out the identification data (the serial number of the MMC, for example) with the SFC 51 in STEP 7 V5.5?

How do you find out the status of the stations of a DP master system or of a PROFINET IO system?

also check the following manual / one page 214 you will get informations about SFC 51, on page 144 you get infos abou sfc59. In chapter 33 you will find information about SSL/SZL

System Software for S7-300/400 System and Standard Functions

Regards,

Towome