我已经更换了 151-1 ，DP接头 ，DP接头在ON位子上，问题依旧。 以前工作的很好， 最近才出现问题 。
今天又出现问题我把诊断发上来 主要就是那个4号站 诊断地址是8189的站 此站是终点。

Diagnostic buffer of module CPU 414-2 DP

Order No./ Des cription Component Version
6ES7 414-2XG04-0AB0 Hardware 1
- - - Firmware V 4.0.2

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: 4
DP master system ID: 1
Log. base address of the DP slave: Input address: 8189
Log. base address of the DP master: 8191
Requested OB: Rack failure OB (OB86)
OB not found, or disabled, or cannot be started in the current operating mode
External error, Outgoing event
10:44:36:410 am 01/02/94


Event 2 of 120: Event ID 16# 530D
New startup information in STOP mode
Startup prevented by:
- STOP request exists
- Cold restart or warm restart necessary
Startup information:
- Time for time stamp at the last backed up power on
- Single processor operation
Current/last startup type:
- Warm restart triggered by switch setting
Permissibility of certain startup types:
- Manual warm restart permitted
Last valid operation or setting of automatic startup type at power on:
- No startup type/following memory reset
Operating mode: STOP (internal)
Incoming event
10:44:36:019 am 01/02/94


Event 3 of 120: Event ID 16# 457F
STOP caused by STOP command
Breakpoint in user program: Rack failure OB (OB86)
Priority class: 25
OB number: 86
Module address: 318
Previous operating mode: RUN
Requested operating mode: STOP (internal)
Internal error, Incoming event
10:44:36:016 am 01/02/94


Event 4 of 120: Event ID 16# 39C4
Distributed I/Os: station failure
Address of the affected DP slave: station number: 4
DP master system ID: 1
Log. base address of the DP slave: Input address: 8189
Log. base address of the DP master: 8191
Requested OB: Rack failure OB (OB86)
Priority class: 25
External error, Incoming event
10:44:35:523 am 01/02/94


Event 5 of 120: Event ID 16# 4302
Mode transition from STARTUP to RUN
Startup information:
- Time for time stamp at the last backed up power on
- Single processor operation
Current/last startup type:
- Warm restart triggered by switch setting
Permissibility of certain startup types:
- Manual warm restart permitted
Last valid operation or setting of automatic startup type at power on:
- Warm restart triggered by switch setting
Previous operating mode: STARTUP (warm restart)
Requested operating mode: RUN
Incoming event
10:28:11:806 am 01/02/94


Event 6 of 120: Event ID 16# 1381
Request for manual warm restart
STOP due to: STOP caused by STOP command
Startup information:
- Startup without modified system configuration
- No difference between setpoint and actual configuration
- Time for time stamp at the last backed up power on
- Single processor operation
Current/last startup type:
- Warm restart triggered by switch setting
Permissibility of certain startup types:
- Manual warm restart permitted
Last valid operation or setting of automatic startup type at power on:
- Warm restart triggered by switch setting
Requested OB: Startup OB (OB100)
Priority class: 27
Incoming event
10:28:07:229 am 01/02/94


Event 7 of 120: Event ID 16# 4301
Mode transition from STOP to STARTUP
STOP due to: STOP caused by STOP command
Startup information:
- Time for time stamp at the last backed up power on
- Single processor operation
Current/last startup type:
- Warm restart triggered by switch setting
Permissibility of certain startup types:
- Manual warm restart permitted
Last valid operation or setting of the automatic startup type at power on:
- Warm restart triggered by switch setting
Previous operating mode: STOP (internal)
Requested operating mode: STARTUP (warm restart)
Incoming event
10:28:07:201 am 01/02/94


Event 8 of 120: Event ID 16# 530D
New startup information in STOP mode
Startup prevented by:
- Keyswitch set to STOP
- Cold restart or warm restart necessary
Startup information:
- Time for time stamp at the last backed up power on
- Single processor operation
Current/last startup type:
- Warm restart triggered by switch setting
Permissibility of certain startup types:
- Manual warm restart permitted
Last valid operation or setting of automatic startup type at power on:
- Warm restart triggered by switch setting
Operating mode: STOP (internal)
Incoming event
10:28:07:200 am 01/02/94


Event 9 of 120: Event ID 16# 530D
New startup information in STOP mode
Startup prevented by:
- STOP request exists
- Keyswitch set to STOP
- Cold restart or warm restart necessary
Startup information:
- Time for time stamp at the last backed up power on
- Single processor operation
Current/last startup type:
- Warm restart triggered by switch setting
Permissibility of certain startup types:
- Manual warm restart permitted
Last valid operation or setting of automatic startup type at power on:
- No startup type/following memory reset
Operating mode: STOP (internal)
Incoming event
10:28:05:658 am 01/02/94


Event 10 of 120: Event ID 16# 4303
STOP caused by stop switch being activated
Previous operating mode: STOP (internal)
Requested operating mode: STOP (internal)
Incoming event
10:28:05:658 am 01/02/94


Event 11 of 120: Event ID 16# 38C4
Distributed I/Os: station return
Address of the affected DP slave: station number: 4
DP master system ID: 1
Log. base address of the DP slave: Input address: 8189
Log. base address of the DP master: 8191
Requested OB: Rack failure OB (OB86)
OB not found, or disabled, or cannot be started in the current operating mode
External error, Outgoing event
10:27:32:912 am 01/02/94