求解决一个西门子PLC400的问题

具体故障就是每次启动一个电磁阀，整个I／O子站箱就跳掉，无法正常启动，要断电重启才解决，现在跳得非常频繁，求解决办法～～～～～ CPU报警记录如下: Diagnostic buffer of module CPU 414-2 DP Order No./ Description Component ... 具体故障就是每次启动一个电磁阀，整个I／O子站箱就跳掉，无法正常启动，要断电重启才解决，现在跳得非常频繁，求解决办法～～～～～

CPU报警记录如下:
Diagnostic buffer of module CPU 414-2 DP

Order No./ Description Component Version
6ES7 414-2XG04-0AB0 Hardware 2
- - - Firmware V 4.0.4

Rack: 0
Slot: 3

Event 2 of 400: Event ID 16# 2943
I/O access error， writing
P area， word access， Access address: 520
FC number: 106
Module address: 264
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error， Incoming event

Event 3 of 400: Event ID 16# 2942
I/O access error， reading
P area， word access， Access address: 526
FC number: 105
Module address: 46
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error， Incoming event

Event 4 of 400: Event ID 16# 2942
I/O access error， reading
P area， word access， Access address: 514
FC number: 105
Module address: 46
Requested OB: I/O access error OB (OB122)
Priority class: 1
External error， Incoming event

Event 6 of 400: Event ID 16# 39B1
I/O access error when updating the process image input table
P area， byte access， access address: 107
process image partition no.: 0
not user relevant(Z1): 2942
Requested OB: Program execution error OB (OB85)
Priority class: 25
External error， Incoming event

Event 7 of 400: Event ID 16# 39B1
I/O access error when updating the process image input table
P area， byte access， access address: 106
process image partition no.: 0
not user relevant(Z1): 2942
Requested OB: Program execution error OB (OB85)
Priority class: 25
External error， Incoming event

Event 8 of 400: Event ID 16# 39B1
I/O access error when updating the process image input table
P area， byte access， access address: 105
process image partition no.: 0
not user relevant(Z1): 2942
Requested OB: Program execution error OB (OB85)
Priority class: 25
External error， Incoming event