# Irregular system failures

**URL:** <https://tech-community.robotics.abb.com/t/irregular-system-failures/9928>\
**Category:** OmniCore\
**Created:** [January 19, 2021, 4:38pm UTC](https://tech-community.robotics.abb.com/t/irregular-system-failures/9928 "2021-01-19T16:38:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tompanhuhu](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/tompanhuhu/32/3366_2.png) [@Tompanhuhu](https://tech-community.robotics.abb.com/u/Tompanhuhu)\
**Post date:** [January 19, 2021, 4:38pm UTC](https://tech-community.robotics.abb.com/t/irregular-system-failures/9928/1 "2021-01-19T16:38:28Z")

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I’m running a 1300 robot with RW 7.1.0 and get system failures very often.  
I get no errors in the log.  
I have sent system diagnostic files to the robotsupport team in Sweden without any response.

I have checked the system diagnostic file and found the following logs.

{args: "MC0: mchException.c 112 (tMchExc): SYS FAIL Exception: task: “servots0”, vecNum: 14 (Page Fault), pc: 0x8bbbb246, cr2: 0x00000018 "}  
{args: "MC0: mchException.c 112 (tMchExc): SYS FAIL Exception: task: “servots0”, vecNum: 14 (Page Fault), pc: 0x8bbbb246, cr2: 0x00000018 "}  
{args: “MC0: Ipolts.cpp 7192 collision\_stop failed -1”}  
{args: “MC0: Servo.c 2169 Control on timeout.”}  
{args: “MC0: rapi\_file\_resource.cpp 742 Unable to open directory /products/RobotControl\_7.1.0/rules/cfg/sio\_firewall\_mgr\_cfgrules.xml”}  
{args: “MC0: Hpjts.c 4713 HPJTS: Jogvector timeout, vector set to zero.”}  
{args: "MC0: mchException.c 112 (tMchExc): SYS FAIL Exception: task: “servots0”, vecNum: 14 (Page Fault), pc: 0x8bbbb246, cr2: 0x00000018 "}  
{args: "MC0: mchException.c 112 (tMchExc): SYS FAIL Exception: task: “servots0”, vecNum: 14 (Page Fault), pc: 0x8bbbb246, cr2: 0x00000018 "}  
{args: “MC0: Hpjts.c 4713 HPJTS: Jogvector timeout, vector set to zero.”}  
{args: “MC0: rapid\_retcode.c 1918 ERROR in rapid return code conversion unknown return code: -1052, from: rapid\_edit\_get\_current\_value”}  
{args: “MC0: rapid\_retcode.c 1918 ERROR in rapid return code conversion unknown return code: -1052, from: rapid\_edit\_get\_current\_value”}  
{args: “MC0: rapid\_retcode.c 1918 ERROR in rapid return code conversion unknown return code: -1052, from: rapid\_edit\_get\_current\_value”}  
{args: “MC0: rapid\_retcode.c 1918 ERROR in rapid return code conversion unknown return code: -1056, from: rapid\_edit\_get\_current\_value”}  
{args: “MC0: Hpjts.c 4713 HPJTS: Jogvector timeout, vector set to zero.”}  
{args: “MC0: Rlraps.c 12339 The total string will exceed max (512) length. text Svets 1: {2}, replace [-596.007,62.8485,678.943]”}  
{args: “MC0: Rlraps.c 12339 The total string will exceed max (512) length. text Svets 1: {2}, replace [-596.007,62.8485,678.943]”}  
{args: “MC0: Rlraps.c 12339 The total string will exceed max (512) length. text Svets 1: {2}, replace [-596.007,62.8485,678.943]”}  
{args: “MC0: Rlraps.c 12339 The total string will exceed max (512) length. text Svets 1: {2}, replace [-596.007,62.8485,678.943]”}  
{args: “MC0: Ipolts.cpp 7192 collision\_stop failed -1”}  
{args: “MC0: Servo.c 2169 Control on timeout.”}

Is there anyone that can help me pinpoint a issue or find a workaround?

Anyone else with similar issues?

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<div class="post-metadata">

**Author:** ![pio90](https://avatars.discourse-cdn.com/v4/letter/p/dfb087/32.png) [@pio90](https://tech-community.robotics.abb.com/u/pio90)\
**Post date:** [June 14, 2022, 7:56am UTC](https://tech-community.robotics.abb.com/t/irregular-system-failures/9928/2 "2022-06-14T07:56:56Z")

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Hi, I have a similar problem and also not obtaining any specific answer about it from the local support.  
On 2 different robot IRB1300 with Omnicore controller, installed on 2 different machines, I have irregular system failures and the only information that I can retrieve from the SysDiagnostic is → **MC0: mchException.c 112 (tMchExc): SYS FAIL Exception: task: “CMCTL\_STATE”, vecNum: 14 (Page Fault) pc: 0x8a1802bf cr2: 0xeeeeeeee**  
The robots in each machine are the Profinet Controller of the machine and 3 Profinet devices are installed and controlled by each IRB1300.  
The error usually occurs after 6 hours from the power on and it doesn’t depend from what the robot is doing. I can leave the robot in emergency state for 6 hours and then see the error. The only thing that runs is a parallel task that does simple control on inputs like a normal PLC.  
We’ve seen this problem on RW7.6.0 and also on RW7.6.1  
Any help is appreciated.