Values of the system word %SW125 for the M340 controller.
Issue
%SW125 contains Stop codes, what to the different numbers mean?
Product line
Unity Pro, M340
Resolution
%SW125 M340
%SW125 contains Stop codes, what to the different numbers mean?
Product line
Unity Pro, M340
Resolution
%SW125 M340
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- Blocking errors, caused by the application program, do not cause system errors but prohibit execution of the program. When such an error occurs, the PLC stops immediately. (all tasks are stopped on the current instruction). The ERR LED flashes.
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- To resolve this issue it is necessary to INIT the PLC or to set the %S0 bit to 1.
The application is then in an initial state:
- The data resumes its initial value.
- Tasks are stopped at end of cycle.
- The input image is refreshed.
- Outputs are controlled in fallback position.
The RUN command then allows the application to be restarted.
- To resolve this issue it is necessary to INIT the PLC or to set the %S0 bit to 1.
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- Indication of a blocking error is signaled by the ERR and RUN LEDs flashing on the processor front panel. The nature of the error is indicated by the system word %SW125.
The following table presents the errors signaled by the values of the system word %SW125.
Hexadecimal Value of %SW125 Corresponding Error 23 Execution of a CALL function towards an undefined subroutine 0 Execution of an unknown function 2258 Execution of the HALT instruction 9690 Failure of the application CRC check (checksum) DEB0 Watchdog overrun 2259 Execution flow different to the reference flow DE87 Calculation error on numbers with decimal points DEF0 Division by 0 DEF1 Character string transfer error DEF2 Capacity exceeded DEF3 Index overrun DEF7 SFC execution error DEFE SFC steps undefined 81F4 SFC node incorrect 82F4 SFC code inaccessible 83F4 SFC work space inaccessible 84F4 Too many initial SFC steps 85F4 Too many active SFC steps 86F4 SFC sequence code incorrect 87F4 SFC code description incorrect 88F4 SFC reference table incorrect 89F4 SFC internal index calculation error 8AF4 SFC step status not available 8BF4 SFC memory too small after a change due to a download 8CF4 Transition/action section inaccessible 8DF4 SFC work space too small 8EF4 Version of the SFC code older than the interpreter 8FF4 Version of the SFC code more recent than the interpreter 90F4 Poor description of a SFC object: NULL pointer 91F4 Illegal action identifier 92F4 Poor definition of the time for an action identifier 93F4 Macro step cannot be found in the list of active steps for deactivation 94F4 Overflow in the action table 95F4 Overflow in the step activation/deactivation table
- Indication of a blocking error is signaled by the ERR and RUN LEDs flashing on the processor front panel. The nature of the error is indicated by the system word %SW125.
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