Hi Looking for some advice.
I have a project that was developed for an S7-300. In that project I have a number of datablocks which only contain structures. Each structure is 16 BOOLs with the idea that you could access the "Structure" if you wanted word access or the individual structure elements if you want Boolean access. Works great with an S7-300. Some of these datablocks have upwards of 800 structures configured.
My issue is that I want to migrate this project to an S7-1500 and TIA Portal. With an S7-1500, I am led to believe that the maximum number of structures you can have in a data block is 252? Without having to modify the structure of my DBs and logic that calls them, can I have more than 252 structures some how? Am I missing a trick? Strange that I could do this OK on an S7-300 but not a 1500? Also not sure why its 252, seems a stranger value.
Any help much appreciated.
I have a project that was developed for an S7-300. In that project I have a number of datablocks which only contain structures. Each structure is 16 BOOLs with the idea that you could access the "Structure" if you wanted word access or the individual structure elements if you want Boolean access. Works great with an S7-300. Some of these datablocks have upwards of 800 structures configured.
My issue is that I want to migrate this project to an S7-1500 and TIA Portal. With an S7-1500, I am led to believe that the maximum number of structures you can have in a data block is 252? Without having to modify the structure of my DBs and logic that calls them, can I have more than 252 structures some how? Am I missing a trick? Strange that I could do this OK on an S7-300 but not a 1500? Also not sure why its 252, seems a stranger value.
Any help much appreciated.