S7-300 TO S7-1500

Hi there,

One of my clients need to upgrade 2 CPU (Simatic S7-300 317-2DP) to the latest CPU and reprogrammed with the same code. The existing configuration has 2 CPUs, if one fails, the other one will take over and 4 set of remote modules SIMATIC ET200M / LINK IM 153-2 modules. I was going through TIA selection tool, and it looks like i can select 2 S7-1500 CPUs & ET200SP as remote modules?  Please advise if S7-1500 is a direct replacement of S7-300.

thanks.

Hi rjx24,

Migration Guide: SIMATIC S7-300/400 to SIMATIC S7-1500

Hello rjx24;

Are your S7-317 CPUs connected in a redundant design, so that a primary CPU can fail and be replaced by a standby CPU. If so  have the programmers used the Software Redundancy package?

TIA Portal allows you to configure S7-1500H-R CPUs in redundant format  have a glance at this presentation:

https://new.siemens.com/global/en/products/automation/systems/industrial/plc/simatic-s7-1500/redundant-and-high-availability-cpus.html

https://support.industry.siemens.com/cs/ca/en/view/109754833

Hope thus helps, 

Daniel Chartier 

Many thanks for your reply Mr. Daniel. i have no idea currently if there is a software redundancy package. I am yet to figure out how redundancy is achieved. I found a function block (FB101), protected block which has a description " Cyclic function block for software redundance" . it is called in OB1. may be is this how it is done? are there different ways to obtain redundancy of S7-317 CPU's ? 

Thanks.

Hello rjx24;

FB101 "ZWR_ZYK" is part of the Software Redundancy package  it is yhe principal block for managing redundant exchanges between the 2 S7-300 CPUs.

https://support.industry.siemens.com/dl/files/637/1137637/att_28772/v1/S7_swr_b_en-US.pdf

If your client wants you to maintain this redundant connection between the 2 S7-1500 PLCs ,  you will need to insert a pair of S7-1500R or S7-1500H in your new project  Have a look at the links provided in my earlier reply for more information.

Notice the redundancy link in S7-1500R/H systems is based on Profinet, no longer Profibus. You might have to  think about replacing the ET 200M head modules with IM 153-4, you can then retain the S7-300 I/O modules the old program used originally with the IM 153-2.

Hope this helps,

Daniel Chartier 

Many Thanks for your reply Mr. Daniel.

In the existing setup, as indicated earlier, there's 2 sets of CPU 217-2DP & CP 343-1 modules and 4 remote stations with IM 153-2 Modules.

It would be helpful if you can give some more info on this so that i can give the best solution to the client. They have 8 HMI stations which is running InTouch Wonderware on old windows xp computers. Client needs to update all this computers to the latest windows softwares and also change the hmi stations to new ones. i am having a hard time selecting the attachment hmi for this upgrade. which will be the latest hmi from siemens that can be used with S7-300 ?