Http Server Functions/ Web Pages

FP Web-Server V2.11

 

 

 

 

 

 

 

 

 

Http Address

Function

 

 

http://199.199.26.52/plc?yyy

Downloads HTML page yyy.MTM including PLC data. The

 

 

 

file format .MTM is equivalent to the .HTM format plus PLC

 

 

 

data. The .MTM file is generated by the Configurator.

 

 

http://199.199.26.52/plc?yyy&U=xx

With automatic reload/ update after xx seconds. The

 

 

 

maximum refresh rate is reached with the input &U=0.

 

 

 

For rapidly changing PLC data, we recommend using Java

 

 

 

Applets (see page 158), which can handle a much higher

 

 

 

data update/display rate.

 

 

http://199.199.26.52/plc?yyy&A=xx

All following PLC data displayed (including yyy.MTM) are

 

 

 

addressed to the PLC with the C-Net/MEWTOCOL

 

 

 

Address xx (0..32). 0 is equivalent to the universal address

 

 

 

EE. The default address (if no &A parameter is used) can

 

 

 

be determined in the base configuration setting PLC

 

 

 

MEWTOCOL Address. The &A operator does not affect

 

 

 

the default addressing for input fields.

 

 

http://199.199.26.52/plc?yyy&Rxxy=w

Before downloading the page yyy, the internal relay with

 

 

 

the address Rxxy is set (w=1) or reset (w=0). (xx=0...999

 

 

 

y=0...F w=0/1)

 

 

http://199.199.26.52/plc?yyy&Yxxy=w

Before downloading the page yyy, the output with the

 

 

 

address Yxxy is set/ reset. (xx=0...999 y=0...F w=0/1)

 

 

http://199.199.26.52/plc?yyy&Y0=1&A=5&Y

Composed types of commands are also possible!

 

 

0=1

 

 

Comments:

•http://199.199.26.52/' can be omitted for relative hyperlinks in an .HTM (or .MTM).

•Only when the http server is turned on can the modification of PLC data (via &Y and &R commands) be temporarily turned off. If an error occurs, writing to the PLC may be prevented. Therefore the functioning of the Ys and Rs is also affected.

•The functions &Y and &R can be limited with [Add. Range].

•The name of the CGI function must be in small letters, i.e. "http://199.199.26.52/PLC?yyy" will not work.

•The PLC address of the &R and &Y commands cannot be replaced by a variable name, i.e. "http://199.199.26.52/plc?yyyeR'name'=1" will not work. For further information, refer to Using Variable Names Instead of Absolute PLC Addresses (see page 82).

•If spaces or Japanese characters are used, an error message pops up before transmission to the FP Web-Server.

•All file names have to correspond to the DOS 8.3 format, i.e. the name may only have up to 8 characters and the extension (type) only up to 3 characters after the period. (FP-WEB2 (see page 15): Long file names without special characters can be used.)

For programming examples in C++ and Java to control PLC relays via the http function, please refer to the online help under the keyword "Appendix K) Programming Samples: Access to the FP Web-Server / PLC via TCP".

7.1.5 Configurator Settings Concerning the Http Server

Please refer to the online help for the following descriptions:

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