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How to convert from 1200 to 1500 PLC

Created by: hewking103 at: 10/23/2023 11:06 AM (3 Replies)

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10/23/2023 11:06 AM	Rate (0)
hewking103 Regular Member Joined: 1/20/2022 Last visit: 9/3/2025 Posts: 369 Rating: (4)	hi All I am using TIA version 17. I would like to debug a problem with my control sequence but as far as i know 1200 plc which i use does not allow debugging mode (i liked it in s7300) So my cunning plan was to add S7 1500 to my debugging project (which is master project + s71500PLC). I encountered various issued- can you please advise on the following: if i add 1500 to the project and copy paste my code from S71200 - would it be possible to debug my sequence using step by step mode using PLC advanced (with loaded code from 1500) or do i need physical 1500 PLC to do that? Are there any tools or guidelines when converting projects from s7 1200 to S71500. I noticed that even blocks for reading PLC time are not matching. In what sequence the objects should be moved from S71200 to S7 1500? - my undestanding is to use the following: data types tags ungrouped devices PLC code Check hardware config and fix broken hmi or drives connections Any tips worth of gold will be paid in gold :) Regards
	Last edited by: hewking103 at: 10/23/2023 11:06:30
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10/23/2023 12:00 PM	Rate (1)
qwazee Platinum Expert Joined: 3/30/2020 Last visit: 9/19/2025 Posts: 5471 Rating: (1065)	hewking103 hi All I am using TIA version 17. I would like to debug a problem with my control sequence but as far as i know 1200 plc which i use does not allow debugging mode (i liked it in s7300) So my cunning plan was to add S7 1500 to my debugging project (which is master project + s71500PLC). I encountered various issued- can you please advise on the following: if i add 1500 to the project and copy paste my code from S71200 - would it be possible to debug my sequence using step by step mode using PLC advanced (with loaded code from 1500) or do i need physical 1500 PLC to do that? Are there any tools or guidelines when converting projects from s7 1200 to S71500. I noticed that even blocks for reading PLC time are not matching. In what sequence the objects should be moved from S71200 to S7 1500? - my undestanding is to use the following: data types tags ungrouped devices PLC code Check hardware config and fix broken hmi or drives connections Any tips worth of gold will be paid in gold :) Regards Gold? It means nothing to this coffee-to-code generator: The local coffee shop does not take gold as payment. :P Going from the S7-1200 to the S7-1500 is more manageable. Just stay away from the special hardware related functions such as PTO / PWM / HSC / Motion control. Best to design for the S7-1200 and test with the S7-1500. We did this prior to Step7 V13 SP1. Do take care that the generation of firmware for the S7-1500 matches the same or higher generation of the S7-1200. S7-1200 FW:V4.4 matches S7-1500 FW:V2.8, for example. Compiling the code will immediately say if there is issues.. except for the hardware base functions such as communications where the resource identity number differs. Going the other way around is problematic. There is too much difference going from S7-1500 design to S7-1200 when veering off the standard instructions. It is possible to configure Step7 to hide instructions that should not be made available to code with. But it is a customization function where you tell it what to hide. Knowing which to hide will take some time and effort. See the reference below. Reference material: [LINK: SIMATIC Comparison list for S7-300, S7-400, S7-1200, S7-1500] Additional.. Ever considered using the 3rd party app "NetToPLCSIM"?
	Last edited by: qwazee at: 10/23/2023 12:02:29 Activities of this user is voluntary. There is no obligation or liability placed on this user. Though optional, your 'please' and 'thank you' is highly valued.
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This contribution was helpful to 1 thankful Users hewking103

10/23/2023 12:33 PM	Rate (0)
hewking103 Regular Member Joined: 1/20/2022 Last visit: 9/3/2025 Posts: 369 Rating: (4)	qwazee hewking103 hi All I am using TIA version 17. I would like to debug a problem with my control sequence but as far as i know 1200 plc which i use does not allow debugging mode (i liked it in s7300) So my cunning plan was to add S7 1500 to my debugging project (which is master project + s71500PLC). I encountered various issued- can you please advise on the following: if i add 1500 to the project and copy paste my code from S71200 - would it be possible to debug my sequence using step by step mode using PLC advanced (with loaded code from 1500) or do i need physical 1500 PLC to do that? Are there any tools or guidelines when converting projects from s7 1200 to S71500. I noticed that even blocks for reading PLC time are not matching. In what sequence the objects should be moved from S71200 to S7 1500? - my undestanding is to use the following: data types tags ungrouped devices PLC code Check hardware config and fix broken hmi or drives connections Any tips worth of gold will be paid in gold :) Regards Gold? It means nothing to this coffee-to-code generator: The local coffee shop does not take gold as payment. :P Going from the S7-1200 to the S7-1500 is more manageable. Just stay away from the special hardware related functions such as PTO / PWM / HSC / Motion control. Best to design for the S7-1200 and test with the S7-1500. We did this prior to Step7 V13 SP1. Do take care that the generation of firmware for the S7-1500 matches the same or higher generation of the S7-1200. S7-1200 FW:V4.4 matches S7-1500 FW:V2.8, for example. Compiling the code will immediately say if there is issues.. except for the hardware base functions such as communications where the resource identity number differs. Going the other way around is problematic. There is too much difference going from S7-1500 design to S7-1200 when veering off the standard instructions. It is possible to configure Step7 to hide instructions that should not be made available to code with. But it is a customization function where you tell it what to hide. Knowing which to hide will take some time and effort. See the reference below. Reference material: [LINK: SIMATIC Comparison list for S7-300, S7-400, S7-1200, S7-1500] Additional.. Ever considered using the 3rd party app "NetToPLCSIM"? Dear Qwazee No doubt your answer is worth some gold :) Could you please clarify some points: 1 Can you please help me to understand what is idea behind your comment Additional.. Ever considered using the 3rd party app "NetToPLCSIM"? 2 Regarding your comment on firmware - how would i know which firmware of 1200 matches which 1500 - unless it is described in the manual you atached. Do take care that the generation of firmware for the S7-1500 matches the same or higher generation of the S7-1200. S7-1200 FW:V4.4 matches S7-1500 FW:V2.8, for example. 3 Does comment below mean that compilation will not highlight issues with the high speed counter for example or clock read? I thought these are detected without issues Compiling the code will immediately say if there is issues.. except for the hardware base functions such as communications where the resource identity number differs. -

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10/23/2023 1:23 PM	Rate (1)
qwazee Platinum Expert Joined: 3/30/2020 Last visit: 9/19/2025 Posts: 5471 Rating: (1065)	hewking103 Dear Qwazee No doubt your answer is worth some gold :) Could you please clarify some points: 1 Can you please help me to understand what is idea behind your comment Additional.. Ever considered using the 3rd party app "NetToPLCSIM"? 2 Regarding your comment on firmware - how would i know which firmware of 1200 matches which 1500 - unless it is described in the manual you atached. Do take care that the generation of firmware for the S7-1500 matches the same or higher generation of the S7-1200. S7-1200 FW:V4.4 matches S7-1500 FW:V2.8, for example. 3 Does comment below mean that compilation will not highlight issues with the high speed counter for example or clock read? I thought these are detected without issues Compiling the code will immediately say if there is issues.. except for the hardware base functions such as communications where the resource identity number differs. - (1) Do a search inside this forum and also an external web search. I cannot officially endorse using a 3rd party app. This app is reported to mirror the Ethernet communication from plain PLCSIM to the PC's Ethernet port. In theory some S7-1200 Ethernet based communications can be simulated. But this is the only thing that becomes available in the simulator. Something like high speed counting is not available. (2) Use the simulation S7-1500 that has the same instruction set as the S7-1200 you use. people can assist if you say which versions of Step7 and S7-1200 you use. Or choose the latest S7-1500 firmware possible for your Step7. The compiler will complain if there are issues. (3) High speed counting on the S7-1200 is not the same as on the S7-1500. Simulating high speed counting is not a simple thing. There is no easy remedy for that. Something like Ethernet communications, refer to the hardware identification number. That is different depending on the CPU you use.
	Activities of this user is voluntary. There is no obligation or liability placed on this user. Though optional, your 'please' and 'thank you' is highly valued.
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This contribution was helpful to 1 thankful Users hewking103

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