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memory lost value in data block

Created by: User_automation at: 4/21/2016 9:44 AM (17 Replies)

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4/21/2016 9:44 AM	Rate (0)
User_automation Posts: 12 Rating: (0)	Please help to solve problem of memory lost value in data block. My machine have problem after main electric shutdown. After we have electric supply to PLC. I lost data value in DATA block (PLC program it have program but lost only value from DATA block) Please see diagnostic PLC even on attach a file. Please help me. What is the root cause? And how to protect in this case.? This is the first time for this problem. Event 7 of 10: Event ID 16# 4357 Module monitoring time started Operating mode: STOP (internal) Incoming event 03:28:30.336 PM 04/17/2016 Event 8 of 10: Event ID 16# 430E Memory reset executed Previous operating mode: STOP (memory reset) Requested operating mode: STOP (own initialization) Incoming event 03:28:26.868 PM 04/17/2016 Event 9 of 10: Event ID 16# 4546 STOP caused by CPU memory management Previous operating mode: STOP (own initialization) Requested operating mode: STOP (memory reset) Internal error, Incoming event 03:28:21.407 PM 04/17/2016 Event 10 of 10: Event ID 16# 4300 Power on backed up Previous operating mode: No voltage Requested operating mode: STOP (own initialization) Incoming event 03:28:21.407 PM 04/17/2016
User_automation Posts: 12 Rating: (0)
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4/21/2016 10:29 AM	Rate (0)
ASGrant Bronze Member Joined: 1/18/2008 Last visit: 8/17/2023 Posts: 36 Rating: (0)	Hi Have you set the retentive behaviour for your Data Block in properties? "Non-Retain: This option allows you to define the retentive behavior of data blocks." Andrew

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4/21/2016 11:16 AM	Rate (0)
ANKURGAMIT Silver Member Joined: 10/2/2013 Last visit: 9/25/2023 Posts: 339 Rating: (51)	User_automation Please help to solve problem of memory lost value in data block. My machine have problem after main electric shutdown. After we have electric supply to PLC. I lost data value in DATA block (PLC program it have program but lost only value from DATA block) Please see diagnostic PLC even on attach a file. Please help me. What is the root cause? And how to protect in this case.? This is the first time for this problem. Event 7 of 10: Event ID 16# 4357 Module monitoring time started Operating mode: STOP (internal) Incoming event 03:28:30.336 PM 04/17/2016 Event 8 of 10: Event ID 16# 430E Memory reset executed Previous operating mode: STOP (memory reset) Requested operating mode: STOP (own initialization) Incoming event 03:28:26.868 PM 04/17/2016 Event 9 of 10: Event ID 16# 4546 STOP caused by CPU memory management Previous operating mode: STOP (own initialization) Requested operating mode: STOP (memory reset) Internal error, Incoming event 03:28:21.407 PM 04/17/2016 Event 10 of 10: Event ID 16# 4300 Power on backed up Previous operating mode: No voltage Requested operating mode: STOP (own initialization) Incoming event 03:28:21.407 PM 04/17/2016 please explain your plc related details like plc series and order no etc
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4/21/2016 11:27 AM	Rate (0)
User_automation Posts: 12 Rating: (0)	ASGrant Hi Have you set the retentive behaviour for your Data Block in properties? "Non-Retain: This option allows you to define the retentive behavior of data blocks." Andrew In Data Block properties "Non-Retain" not selected. Normaly after lost electric supply. DATA block should keep last value in DATA Block. Or in this case we should select "Non-Retain" (For not retain intitial value from factory reset)
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4/21/2016 11:30 AM	Rate (0)
User_automation Posts: 12 Rating: (0)	ANKURGAMIT User_automation Please help to solve problem of memory lost value in data block. My machine have problem after main electric shutdown. After we have electric supply to PLC. I lost data value in DATA block (PLC program it have program but lost only value from DATA block) Please see diagnostic PLC even on attach a file. Please help me. What is the root cause? And how to protect in this case.? This is the first time for this problem. Event 7 of 10: Event ID 16# 4357 Module monitoring time started Operating mode: STOP (internal) Incoming event 03:28:30.336 PM 04/17/2016 Event 8 of 10: Event ID 16# 430E Memory reset executed Previous operating mode: STOP (memory reset) Requested operating mode: STOP (own initialization) Incoming event 03:28:26.868 PM 04/17/2016 Event 9 of 10: Event ID 16# 4546 STOP caused by CPU memory management Previous operating mode: STOP (own initialization) Requested operating mode: STOP (memory reset) Internal error, Incoming event 03:28:21.407 PM 04/17/2016 Event 10 of 10: Event ID 16# 4300 Power on backed up Previous operating mode: No voltage Requested operating mode: STOP (own initialization) Incoming event 03:28:21.407 PM 04/17/2016 please explain your plc related details like plc series and order no etc Diagnostic buffer of module CPU 315-2 DP Order No./ Description Component Version 6ES7 315-2AH14-0AB0 Hardware 2 - - - Firmware V 3.0.3 Boot Loader Firmware expansion A 25.7.5 Rack: 0 Slot: 2 Serial number: S C-A7VC10382010
User_automation Posts: 12 Rating: (0)
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4/21/2016 11:59 AM	Rate (0)
ASGrant Bronze Member Joined: 1/18/2008 Last visit: 8/17/2023 Posts: 36 Rating: (0)	In the hardware config for the CPU315-2 DP, are the DB's defined in the Retentive Memory tab?

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4/22/2016 4:15 AM	Rate (0)
User_automation Posts: 12 Rating: (0)	ASGrant In the hardware config for the CPU315-2 DP, are the DB's defined in the Retentive Memory tab? Retentive MB0 - MB100 and C0 - C6 Attachment Capture4.JPG (363 Downloads)
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4/22/2016 9:29 AM	Rate (0)
ASGrant Bronze Member Joined: 1/18/2008 Last visit: 8/17/2023 Posts: 36 Rating: (0)	To allow retained data in data blocks (DBs) following power failure and after a transition from STOP to RUN, I believe the DB's should be defined in the CPU retentive memory config (example is attached). Attachment RetentiveMem.jpg (353 Downloads)

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4/22/2016 9:55 AM	Rate (0)
User_automation Posts: 12 Rating: (0)	ASGrant To allow retained data in data blocks (DBs) following power failure and after a transition from STOP to RUN, I believe the DB's should be defined in the CPU retentive memory config (example is attached). How to enable retentive DB's area in CPU?. I can't retentive DB's in CPU rentive memory config (Use S7 V5.5+Sp4 CPU 315-2 DP (6ES7 315-2AH14-0AB0))
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4/22/2016 10:31 AM	Rate (0)
PISCEAN 2010 Diamond Member Joined: 4/23/2010 Last visit: 9/16/2023 Posts: 8042 Rating: (855)	Have you read earlier reply & followed the steps. Click on CPU315-2, right click, select properties , in properties window select tab Retentive memory, in retentive memory window, user can put DBs which data is to be make retentive. HTH.

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