Beckhoff CX1100-000x Manual de usuario descargar pdf (Pagina 51)

Error handling and diagnostics

Embedded PC 49

....

IF k_bus_state = 1 THEN (* an error occured on K-Bus*)

k_bus_request := TRUE; (* request vaules for ErrCode and ErrArg *)

CASE k_bus_err_code OF

0 : return; (* should not happen, though an error occured *)

1 : CASE k_bus_arg OF

0 : report error; (* EEPROM checksum error *)

1 : report error; (* overflow in code buffer *)

2 : report error; (* unknown datatype *)

END_CASE;

2 : CASE k_bus_arg OF

0 : report error; (* programmed configuration, wrong table entry *)

ELSE report error; (* wrong table entry *)

END_CASE;

3 : report error (* K-Bus command error *)

4 : CASE k_bus_arg OF

0 : report error; (* break after power supply *)

ELSE report error; (* break after terminal 'k_bus_arg' *)

END_CASE;

5 : report error (* K-Bus-error during register-communication with

terminal 'k_bus_arg' *)

9 : CASE k_bus_arg OF

0 : report error; (* checksum error in program flash *)

ELSE report error; (* terminal 'k_bus_arg' does not exist in boot

configuration *)

END_CASE;

14 : report error (* 'k_bus_arg'-th terminal has wrong format *)

15 : report error (* wrong number of bus terminals *)

16 : report error (* length of K-Bus data is invalid *)

END_CASE

k_bus_request := TRUE; (* reset bus, if reason for error is removed, bus

starts again *)

....

To make the control work, the register and the program must be linked in System Manager. If the PLC program is

attached in System Manager the following signals are available:

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 65 66

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Beckhoff CX1100-000x Manual de usuario Pagina 51