I resolved it by doing multiple request instead of one big request, and i skipped a few boolean variables.
%F0.7:BOOL,%F0.6:BOOL,%F0.5:BOOL,%F0.4:BOOL,%F0.3:BOOL,%F0.2:BOOL,%F0.1:BOOL,%F0.0:BOOL,%F0:BYTE %I40:UINT,%Q2.5:BOOL,%Q3:UINT %I66:WORD,%Q20:REAL,%I61:WORD,%Q25:WORD,%I58.0:BOOL,%I58:WORD %F1:BYTE skipped (%F1.0-%1.3) %F28.0:BOOL %Q73:WORD,%Q75:WORD,%I73:WORD,%I75:WORD,%I74:WORD,%I77:WORD,%F81.1:BOOL,%Q82:REAL,%F86:INT,%F89:REAL On 3/7/19 4:26 PM, Christofer Dutz wrote: Hi Gunther, I was a little surprised about your finding as it seems all items have even byte-number types so the fill-byte problem shouldn't occur. And the splitting of requests should also work quite well for S7 ... In one POC we even read 2600 items in one logical request, which was automatically split up into 30 requests and correctly merged back together. How did you avoid the problem. I would assume you found a bug ... so we should fix it. Chris Am 07.03.19, 15:29 schrieb "Gunther Gruber" <[email protected]><mailto:[email protected]>: Hi, with some small tweaks in my code i can read all the variables from a s7-1500 with the 0.3 version. I will switch to 0.3.1 after release. Thx for this awesome library. Below some proof :) timestamp driveSetFreqInPercent currentDrivePercent currentSpeedInRpm 1551966078526 50 50.0 690.0 1551966079540 50 50.0 690.0 On 3/6/19 1:51 PM, Tim Mitsch wrote: Hello Gunther This bug is known and we fixed it already in development branch. The problem is not the amount of variables rather than one-byte variables like BOOL,BYTE,USINT, ... - Simens uses a filling-byte when acquiring a single one-byte request Right now we have the bugfix-release 0.3.1 as RC1 in vote, so you can try using a checkout development-branch from GitHub or just wait a few days until vote is finished and the version is available on MavenCentral. Or you can use the staging-repository by integrating that in your pom and change plc4x-version to 0.3.1: https://repository.apache.org/content/repositories/orgapacheplc4x-1008 Best Tim Am 06.03.19, 13:40 schrieb "Gunther Gruber" <[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]>: I try to read multiple variables synchronous from a S7-1500 and get a exception. I use the code from the hello world example. When i split up the variables into smaller units like 5-8 it works. any suggestion on this? Is there a limit to the number of variables? Gunther String vars = "%Q73:WORD,%Q75:WORD,%I73:WORD,%I75:WORD,%I74:WORD,%I77:WORD,%F81.1:BOOL,%Q82:REAL,%F86:INT,%F89:REAL,%I40:INT,%Q2.5:BOOL,%Q3:INT,%I66:WORD,%Q20:REAL,%I61:WORD,%Q25:WORD,%I58.0:BOOL,%F1:BYTE,%F1.0:BOOL,%F1.1:BOOL,%F1.2:BOOL,%F1.3:BOOL,%F28.0:BOOL,%I58:WORD,%F0.7:BOOL,%F0.6:BOOL,%F0.5:BOOL,%F0.4:BOOL,%F0.3:BOOL,%F0.2:BOOL,%F0.1:BOOL,%F0.0:BOOL,%F0:BYTE"; for (String item : splitVariables(vars)){ variables.add(item); } -- Gunther Gruber Software Developer [cid:[email protected]] Intelligent Data Analytics GmbH & Co. KG c/o TechQuartier Platz der Einheit 2 60327 Frankfurt Telefon: +49 6421/4805274 Telefax: +49 6421/4805275 E-Mail: [email protected] Internet: www.ida-analytics.de<http://www.ida-analytics.de/> Unternehmenssitz: Frankfurt am Main | Handelsregister beim Amtsgericht: Frankfurt am Main, Registernummer: HRA 49357 | USt. ID-Nr.: DE310205810 | Finanzamt: Frankfurt am Main Persönlich haftende Gesellschafterin: IDA Intelligent Data Analytics GmbH | Sitz: Frankfurt am Main | Handelsregister beim Amtsgericht: Frankfurt am Main | Handelsregister-Nummer: HRB 106805 | Geschäftsführer: Mohamed Ayadi, Nils Björn Krugmann, Matthias Leinweber, Marc Seidemann If you are not the addressee, please inform us immediately that you have received this e-mail by mistake, and delete it. We thank you for your support.
