cpu 315 2dp/pn profibus with abb drive - How can identify node add?

 Hello dchartier,

Thanks for feedback and problem is solve.

Dont mind one more question...

Suppose due to some problem of drive that particular drive will out of profibus loop then how can we identify node add ??

Means profibus node not communicate with master (here cpu 315 2 dp) then need acknowledgement.

Regards,

Susmit Prajapati. 

dchartier

Hello sus

The ACS 550 uses a RPBA Profibus option board, the ACS M1 requires a FPBA Profibus adapter.

Both set a reverse direction command by replacing the positive speed reference into a negative speed reference:

• RPBA Profibus option module (ACS550):

http://search.abb.com/Library/Download.aspx?DocumentID=3AFE64504215&LanguageCode=en&DocumentPartId=1&Action=Launch

References

References are 16-bit words containing a sign bit and a 15-bit integer. A negative reference (indicating reversed direction of rotation) is formed by calculating the twoís complement from the corresponding positive reference.

• FPBA ACS M1 Profibus adapter:

https://library.e.abb.com/public/f53410a67cea6fb3c125771800456d8a/EN_ACSM1_FB_Appl_Guide_C.pdf

Fieldbus references

References (FBA REF) are 16/32-bit signed integers. A negative reference (indicating reversed direction of rotation) is formed by calculating the two’s complement from the corresponding positive reference value. The contents of each reference word can be used as torque or speed reference.

Hope this helps,

Daniel Chartier

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Split from cpu 315 2dp/pn profibus with abb drive.

Hello sus;

All Profinus-DP masters have mechanisms to provide diagnostics for a lost or unresponsive node. On a CPU 315-2DP, you will get a BF active LED (Bus Fault), and probably a SF (System Fault, due to a programming or I/O access error).on the CPU.

Using diagnostic OBs 86, 121 and 122 will provide this informatuon in the diagnostic buffer of the cPU, but that requires that someone with a programming software and cable interface with the CPU.

If you would like to have runtime information on failed Profibus slaes, you could look to this sample provided by Siemens:

Sample program: history for failed slaves

https://support.industry.siemens.com/cs/ww/en/view/2289283

Hope this helps,

Daniel Chartier

 Hello dchartier,

Again thanks...

I know how to diagnose node in profibus loop but i want to give some indication on HMI regarding that faulty node add.

Means responsible person can easily trace out of profibus loop node add through HMI only. No need to go online with step 7 or portal. Just through HMI can identify it.

regards,

susmit prajapati.  

dchartier

Hello sus;

All Profinus-DP masters have mechanisms to provide diagnostics for a lost or unresponsive node. On a CPU 315-2DP, you will get a BF active LED (Bus Fault), and probably a SF (System Fault, due to a programming or I/O access error).on the CPU.

Using diagnostic OBs 86, 121 and 122 will provide this informatuon in the diagnostic buffer of the cPU, but that requires that someone with a programming software and cable interface with the CPU.

If you would like to have runtime information on failed Profibus slaes, you could look to this sample provided by Siemens:

Sample program: history for failed slaves

https://support.industry.siemens.com/cs/ww/en/view/2289283

Hope this helps,

Daniel Chartier