这是诊断信息:

Event 1 of 100: Event ID 16# 4562

STOP caused by programming error (OB not loaded or not possible, or no FRB)

Breakpoint in user program: Cyclic interrupt OB (OB 35)

Priority class: 12

FC number: 2

Module address: 1848

Previous operating mode: RUN

Requested operating mode: STOP (internal)

Internal error, Incoming event

07:28:09:895 am 02/16/94





Event 2 of 100: Event ID 16# 2523

Area length error when writing

Global DB, word access, Access address: 82

Requested OB: Programming error OB (OB121)

OB not found, or disabled, or cannot be started in the current operating mode

Internal error, Incoming event

07:28:09:886 am 02/16/94





Event 3 of 100: Event ID 16# 2942

I/O access error, reading

P area, word access, Access address: 338

Requested OB: I/O access error OB (OB122)

Priority class: 12

External error, Incoming event

07:28:09:886 am 02/16/94

清除了MCC卡上所有的数据之后,下硬件,然后就报错了,检查了DB和FC,OB 没有发现错误,不知道什么原因.