错误代码如下
Diagnostic buffer of module CPU 317-2 PN/DP

Order No./ Des cription Component Version
6ES7 317-2EK14-0AB0 Hardware 4
- - - Firmware V 3.2.6
Boot Loader Firmware expansion A 32.9.9

Rack: 0
Slot: 2


Serial number: S C-C2TH73852012


Event 1 of 115: Event ID 16# 4541
STOP caused by priority class system
Event: Cycle time exceeded
OB number: Timing error OB (OB80)
Priority class: 26
Previous operating mode: RUN
Requested operating mode: STOP (internal)
Internal error, Incoming event
01:40:34.725 PM 06/12/2013
(Coding: 16# 4541 FF84 C300 0000 3501 1A50)


Event 2 of 115: Event ID 16# 3501
Cycle time exceeded
Run time of the last cycle (ms): 150
Cause: Current OB1 start event initiated by end of OB1 (free cycle)
Causing OB: Cyclic program (OB1)
Causing priority class: 1
Requested OB: Timing error OB (OB80)
Priority class: 26
Internal error, Incoming event
01:40:34.575 PM 06/12/2013
(Coding: 16# 3501 1A50 C358 0096 1103 0101)

求助怎么找到错误程序块