SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
SCL, Graph, SPS-VISU S5/S7, IBHsoftec, LOGO ...
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omar zedan
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by omar zedan » Thu Aug 11, 2022 7:35 pm
Dear All
I have CPU 319 CPU connected to 3 Danfoss drive via profinet
(I connect my laptop to the hab and I found the PLC and the 3 Danfoss "the network is good"),
the BF3 flashing red and the diag. buffer
(IO access error writing P area, word access, Access address 2602 Request OB I/O access error OB (OB122), Priority class 1 External error, Incoming event)
the address 2602 dose not exist in hardware, also the OB122 used.
What can I do to solve this issue?
Thanks
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georg_demmler
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by georg_demmler » Fri Aug 12, 2022 6:35 am
Hello,
what do you expected from the forum ?
That we guess what happens - please put some pictures about the online Hardwareconfiguration so we see the hardware.
What is the Event-ID of the diag. buffer? Is the equipment old or new.
How did you check "network is good".
We need a little bit more information if you want help from the forum.
In German we have a slang - here you have a bone look for the meat.
Thanks
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CoMod
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by CoMod » Sun Aug 14, 2022 10:08 am
See Cross-reference table - PIW/PQW 2602 is used in FC91
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omar zedan
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by omar zedan » Sun Aug 14, 2022 12:38 pm
Yes, sir, I find this address (also there is PQW 2602), and when I try to use it in a variable table the status field in the variable table shows me nothing just a glass icon with a line inside it.
maybe something out of range? I don't know.
What is the glass icon inside the variable table (Status field)?
and how can I solve this issue?
Thanks
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CoMod
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by CoMod » Sun Aug 14, 2022 1:30 pm
this program downloaded from PLC
no symbol names
no comments
For decision need full source of Step7 project with symbol names and comments
and documentation with schemes
эта программа скачана с ПЛК
нет названий, символьных имён
без комментариев
Для решения нужен полный исходник проекта Step7 с именами символов и комментариями
и документация со схемами
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sania
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by sania » Mon Aug 15, 2022 2:29 pm
это пустышка,
сотри букву Р , так и прогу не меняешь и лампочку погасишь
delete "P" in "PIW" / "PQW" it will not change program and correct the error
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georg_demmler
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by georg_demmler » Tue Aug 16, 2022 11:17 am
Hello,
this is my only comment - it is nice to get a program without any symbolic.
So here is what I find - yes the program use the address 2602
Go to the hardware - select the part with the CPU 319 and on the slot X3 you find the CPU-CA140-1. Select this and you find the I-Device the address range
for inputs / outputs from 2600-2663.
But I don't know how its works.
Hope this helps
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georg_demmler
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by georg_demmler » Wed Aug 17, 2022 5:30 am
Hello,
some information about your plc.
The program what you send is a I-device - that means you have a master and one (or more) I-devices.
The communication between the I-device and the master is over inputs and outputs.
You definied in the I-device the Inputrange and Outputrange - create a GSD-File and put this GSD-File in the Master-PLC.
You find a very helpful video in YT - Siemens SIMATIC Manager_Communication between two PLC Using I Device option (S7-300/S7-400)
And the read BF light shows, that the Master-PLC is missing.
KHS is a german company and let me guess - the program is working in a liquid area (filling and so on)
Hope this helps.