Error E-B1-70-2001 IO error

krumpli01 Questions about HW Apr 24, 2023, 9:12 AM May 15, 2023, 7:57 PM

Hi,

Yesterday a CP-2005 stopped and couldn't be restarted first, just after more retries. Here is a log extract:

What does this error mean exactly? What could have caused this error?

2023-04-23 11:53:38.935023  Error E-B1-70-2001 IO error: Sub ITCL, Iop 1, Bus TCL2, Bus thread cntRqst overflow - ec = 112.
2023-04-23 11:53:38.938544  Error E-B1-70-2001 IO error: Sub ITCL, Iop 1, Bus TCL2, Bus thread cntRqst overflow - ec = 112.
2023-04-23 11:53:39.063891  Saving the RETAIN variables (6635->REMBANK0.REM/LAJA_KUNU.RMF)
2023-04-23 12:41:11.158777       SIGPWR
2023-04-23 12:41:11.168011  Saving the RETAIN variables - no changes (6635/REMBANK0.REM)
2023-04-23 12:41:11.184765  ---- PLC stop -----
2023-04-23 12:42:04.109988  ==== PLC start ==== F2x CP2005I v2.2.052 (May 31 2022 10:00:34)
2023-04-23 12:42:08.232889  Prog LAJA_KUNU v2.0.0.0 (2022-10-28 10:29:56)
2023-04-23 12:42:11.933601  Run  (hot restart)
2023-04-23 12:42:11.944817  Loading the RETAIN variables (LAJA_KUNU.RMF/REMBANK0.REM->6635)
2023-04-23 12:44:40.445281  Error E-B1-70-2001 IO error: Sub ITCL, Iop 1, Bus TCL2, Bus thread cntRqst overflow - ec = 112.
2023-04-23 12:44:40.448689  Error E-B1-70-2001 IO error: Sub ITCL, Iop 1, Bus TCL2, Bus thread cntRqst overflow - ec = 112.
2023-04-23 12:44:40.541234  Saving the RETAIN variables (6635->REMBANK1.REM/LAJA_KUNU.RMF)
2023-04-23 12:45:35.135928       SIGPWR
2023-04-23 12:45:35.146257  Saving the RETAIN variables - no changes (6635/REMBANK1.REM)
2023-04-23 12:45:35.155381  ---- PLC stop -----
2023-04-23 12:47:45.923908  ==== PLC start ==== F2x CP2005I v2.2.052 (May 31 2022 10:00:34)
2023-04-23 12:47:49.141813  Prog LAJA_KUNU v2.0.0.0 (2022-10-28 10:29:56)
2023-04-23 12:48:10.284215       SIGPWR
2023-04-23 12:48:10.286785  ---- PLC stop -----
2023-04-23 12:49:22.111104  ==== PLC start ==== F2x CP2005I v2.2.052 (May 31 2022 10:00:34)
2023-04-23 12:49:25.962737  Prog LAJA_KUNU v2.0.0.0 (2022-10-28 10:29:56)
2023-04-23 12:49:29.663054  Run  (hot restart)
2023-04-23 12:49:29.674338  Loading the RETAIN variables (LAJA_KUNU.RMF/REMBANK1.REM->6635)
2023-04-23 12:55:31.707016  Error E-B1-70-2001 IO error: Sub ITCL, Iop 1, Bus TCL2, Bus thread cntRqst overflow - ec = 112.
2023-04-23 12:55:31.710600  Error E-B1-70-2001 IO error: Sub ITCL, Iop 1, Bus TCL2, Bus thread cntRqst overflow - ec = 112.
2023-04-23 12:55:31.810816  Saving the RETAIN variables (6635->REMBANK2.REM/LAJA_KUNU.RMF)
2023-04-23 13:57:24.974055       SIGPWR
2023-04-23 13:57:24.988480  Saving the RETAIN variables - no changes (6635/REMBANK2.REM)
2023-04-23 13:57:24.999017  ---- PLC stop -----
2023-04-23 13:59:02.225801  ==== PLC start ==== F2x CP2005I v2.2.052 (May 31 2022 10:00:34)
2023-04-23 13:59:06.493934  Prog LAJA_KUNU v2.0.0.0 (2022-10-28 10:29:56)
2023-04-23 13:59:10.238731  Run  (hot restart)
2023-04-23 13:59:10.250163  Loading the RETAIN variables (LAJA_KUNU.RMF/REMBANK2.REM->6635)

Answers 4

Luboš Urban Apr 24, 2023, 9:24 AM

This is a bus communication error. The cause cannot be determined from the event log. Some error states have been treated in previous firmware versions, so I would recommend a firmware upgrade for that PLC. More information can be obtained from the complete PLC log. After logging in to the web interface for system administration, the debug_info.zip package can be downloaded from the Debug page. If you download it while the PLC is still in error, we will get the maximum information about the state of the PLC and it might be possible to find out what happened.

Luboš Urban Apr 24, 2023, 10:33 AM

Please, can you send me debug_info.zip now?

krumpli01 Apr 24, 2023, 11:07 AM

Yes, here is it:

Luboš Urban May 15, 2023, 7:57 PM

Unfortunately, we didn't solved the problem yet but can you try to update firmware in CPU to version 5.8? We are still looking for solution.

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