Freelance 900F controllers redundancy problem
Also when tried to load stations while sec is in (bootloader waiting) mode it took too much time , So i disconnected sec, loaded program to prim then reconnected sec which fetches program from prim controller through redundancy network .
In order to make sure that H/W is ok, i loaded a single non redundant conf to each of the controllers at a time & they were properly working.
Good day Ahmed;
A issue with Profibus communicaction CI 773F was report a year ago and the description of this report is.
"There is a small probability that the PROFIBUS connectivity of the AC 900F / AC 700F controllers is disturbed due to a damaged memory on communication interface CI 773F and CI 930F. This problem can occur at any time. The potential problem might exist for the following PROFIBUS modules:
· Communication Interface CI 773F
o Serial number:
§ xxxx0021020 - xxxx0021099
§ xxxx0020238 - xxxx0020320
Corrective Action or Resolution
A hardware exchange of CI 773F / CI 930F modules shall be done for the above mentioned hardware. This hardware exchange needs to be organized via ABB Repair Center. The exchange for the above mentioned modules of type CI 773F / CI 930F will be free of charge. Requests for hardware exchange to ABB Repair Center referring to this Product Alert will be accepted until 2018-12-31.
The Product Alert "ALERT - Freelance: Hardware issue with PROFIBUS communication interface CI 773F / CI 930F" is an ABB document and you could download it from ABB Download Center Doc. 3BDD011837D0008.
If you have no access to this document I could send it by email.