我厂一台840D磨床，在上完控制电后，做任何操作都可能引起PLC停机，不知为什么，求解答！PLC故障诊断有如下字样
Diagnostic buffer of module PLC 317-2DP

Order No./ Des cription Component Version
6FC5 317-2AJ10-1AB0 Hardware 2218
20.71.30 06.02.2006 Firmware V 2.1.8

Rack: 0
Slot: 2


Event 1 of 10: Event ID 16# B033
No entry in text database. Hexadecimal values will be displayed.
Event ID: 16# B033
OB: 16# 01
PK: 16# 01
DatID 1/ 2: 16# 59 C9
Additional info1 / 2 / 3: 16# 0F00 0000 0008
Outgoing event
02:24:46.202 PM 11/10/2011


Event 2 of 10: Event ID 16# A046
No entry in text database. Hexadecimal values will be displayed.
Event ID: 16# A046
OB: 16# 01
PK: 16# 01
DatID 1/ 2: 16# 59 C9
Additional info1 / 2 / 3: 16# 0E01 0000 001D
Outgoing event
02:24:17.815 PM 11/10/2011


Event 3 of 10: Event ID 16# 38C4
Distributed I/Os: station return
Address of the affected DP slave: station number: 10
DP master system ID: 1
Log. base address of the DP slave: Input address: 8190
Log. base address of the DP master: 8191
Requested OB: Rack failure OB (OB86)
Priority class: 26
External error, Outgoing event
02:24:09.517 PM 11/10/2011


Event 4 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 260
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:24:09.268 PM 11/10/2011


Event 5 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 258
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:24:09.268 PM 11/10/2011


Event 6 of 10: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 260
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:24:09.268 PM 11/10/2011


Event 7 of 10: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 258
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:24:09.267 PM 11/10/2011


Event 8 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 260
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:24:09.184 PM 11/10/2011


Event 9 of 10: Event ID 16# 2942
I/O access error, reading
P area, word access, Access address: 258
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:24:09.184 PM 11/10/2011


Event 10 of 10: Event ID 16# 2943
I/O access error, writing
P area, word access, Access address: 260
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error, Incoming event
02:24:09.184 PM 11/10/2011


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