故障如下：

我不知道是什么意思，请各位帮忙解释

Diagnostic buffer of module CPU 414-2 DP

Order No./ Description Component Version
6ES7 414-2XG04-0AB0 Hardware 2
- - - Firmware V 4.1.0

Rack: 0
Slot: 2


Event 1 of 120: Event ID 16# 38C4
Distributed I/Os: station return
Address of the affected DP slave: station number: 8
DP 
 Master1 system ID: 2
Log. base address of the DP slave: Input address: 8181
Log. base address of
the DP Master1: 8190
Requested OB: Rack failure OB (OB86)
Priority class: 25
External error, Outgoing event
07:15:46.188 AM 01/02/1994


Event 2 of 120: Event ID 16# 39B1
I/O access error when updating the process image input table
P area, byte access, access address: 100
process image partition no.: 0
not user relevant(Z1): 2942
Requested OB: Program execution error OB (OB85)
Priority class: 25
External error, Incoming event
07:15:46.167 AM 01/02/1994


Event 3 of 120: Event ID 16# 39B2
I/O access error when transferring the process image to the output modules
P area, byte access, access address: 100
process image partition no.: 0
not user relevant(Z1): 2943

Requested OB: Program execution error OB (OB85)
Priority class: 25
External error, Incoming event
07:15:46.167 AM 01/02/1994