6/21/2023 11:22 AM | |
Joined: 8/29/2022 Last visit: 6/16/2024 Posts: 2 Rating: (0) |
Hi Mark, Need your advice. I need to replace one of the CPU, but in a redundant system. The new CPU that I receive has the latest firmware, V8.2.3 & the existing CPU firmware is V8.1.0. Appreciate if you have a look at the step below & give a comment if there is any: Old CPU Serial No: 6ES7 410-5HX08-0AB0 Old CPU Firmware: V8.1.0 New CPU Serial No: 6ES7 410-5HX08-0AB0 New CPU Firmware: V8.2.3 1. We plan to replace one new CPU, and use one existing CPU. 2. Stop the standby CPU. Turn Off the power. Make sure the rack number is set correctly on the new CPU. 3. Replace the standby CPU with the new CPU (Firmware V8.2.3). 4. Upgrade Master CPU to the latest software (from V8.1.0 to V.8.2.3). Step as below: a) STOP the Master CPU. Now the new CPU will become Master CPU. b) Update the firmware for Master CPU in STOP mode by selecting PLC > Update Firmware 5) Since now both CPU have the same firmware, the software/logic will automatically sync between these 2 redundant CPU's. 6. Now both CPU's will operate normally as redundant systems with the latest firmware, V8.2.3 Please comment the step is wrong. Appreciate your help on this.
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Last edited by: Jen_Moderator at: 06/22/2023 07:04:24New subject after splitting |
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6/26/2023 5:45 AM | |
Joined: 3/14/2008 Last visit: 9/27/2024 Posts: 2098 Rating: (938)
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Hi, There is one flaw I guess... you cannot switch a redundant system when the firmware of both CPU's is not equal. Make sure they are updated to the same firmware. Another way is to downgrade V8.2.3 to the version your master CPU is running now. Which PCS7 version are you using? The firmware V8.2.3 is released as of V9.1 SP2 UC1. You can only operate the CPU with firmware V8.2.3. if you configure the V8.2.3. CPU in the hardware. |
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6/30/2023 8:06 AM | |
Joined: 6/23/2008 Last visit: 9/25/2024 Posts: 1168 Rating: (282)
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Hello
I doubt this statement. Here a quote from the page with download link of this firmware: "The firmware V8.2.3 can be used independently of the STEP 7 or PCS 7 version used." If you want to use a new functionallity wich comes with the new firmware, you need to configure the matching firmware version in HW-config. This usually requires a certain version of PCS7. Best regards... |
"Expert" does not necessarily mean Siemens employee. Please cross-check your requirements always with official Siemens documentation. Also "Experts" are pleased about feedback. Please don't send support requests as PM. Questioners who don't follow up their thread will be put to my list of users to be ignored. |
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6/30/2023 5:17 PM | |
Joined: 3/14/2008 Last visit: 9/27/2024 Posts: 2098 Rating: (938)
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Hi Mark, What I mean is if you configure the V8.2.3 in HW config, you cannot operate it with an actual firmware lower then V8.2.3
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If I could help you, you can use the RATE button. Thank you. |
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