HTTP server functions/web pagesFP Web-Server V2.810 EN 10712.1.12.3 Comments on defining input fields for PLC data on HTML In the current version, DT, FL, LD values as well as R and Y can bedefined in input fields. In the definition of the input field NAME="DT205_6_d", only numbersfrom 0 to 9, letters from A to Z and the underscore are permitted! Donot use special characters like * - < > $ % / ' & and so on! To send Boolean values from the type R and Y, use this syntax:NAME="R123_100_u". Only the register address can be defined bythe user. The characters _100_u are fixed. The data type and address part TTxxxy can be replaced by thecorresponding variable name (see p. 96) from the FPWIN Pro project,e.g. {'VarName'_aa_bb} or {'name'_5_i}. In the current version, octal numbers cannot be entered, i.e. formatspecifier _o has not been implemented yet! The "default" MEWTOCOL address of the PLC cannot be modified by thecalling parameter "Address Modifier" &A=x for input fields! If you send several input fields to a PLC with a button (see "Defininginput fields for PLC data on HTML pages" on p. 101), the maximumnumber of characters is limited to 300 for all NAME="..." andVALUE="..." commands. You can limit the PLC write access with the function [Add. Range].For programming examples in C++ and Java to send PLC data via the httpsubmit function to the PLC, refer to the online help under the keyword"Appendix K) Programming Samples: Access to the FP Web-Server / PLCvia TCP".12.1.12.4 Extended Http POST functionsAdditionally to processing input fields for HTML data on HTML pages (see"Data fields for displaying PLC data on HTML pages" on p. 88) some helpfulfunctions are implemented.
