Siemens SIMATIC S7-1200 System Manual page 1079

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Commandstate structure

"Commandstate" is a structure that contains global commands and global states for the Web

Global commands in the "Commandstate" structure

The global commands apply to the Web server in general. You can deactivate the Web

server or restart it from the control DB parameters.

Global states in the Commandstate structure

The global states apply to the Web server in general and contain status information about

the Web application.

initializing

deactivating

Request table

The request table is an array of structures containing commands and states that apply to

individual fragment DBs. If you created fragments with the AWP_Start_Fragment

(Page 1052) command of type "manual", the STEP 7 user program must control these pages

through the control DB. The request states are read-only and provide information about the

current fragment. You use the request commands to control the current fragment.

S7-1200 Programmable controller

System Manual, V4.2, 09/2016, A5E02486680-AK

ARRAY [ 1 .. 4 ] OF STRUCT

12.7 User-defined Web pages

Evaluate the control DB and initialize the Web

Deactivate the Web application

Web application is reading control DB

Web application could not be initialized

Web application is terminating

Web application is terminated

Web application is initialized

Last error returned from a WWW instruction

call (Page 1059) when the return code of

WWW is 16#0010:

16#0001: fragment DB structure is inconsistent

16#0002: the application name already exists

16#0003: no resources (memory)

16#0004: control DB structure is inconsistent

16#0005: fragment DB not available

16#0006: fragment DB not for AWP

16#0007: enumeration data is inconsistent

16#000D: conflicting size of the control DB

Array of structures for individual fragment DB

The Web server can process up to four frag-

ments at a time. The array index for a particular

fragment is arbitrary when the Web server is

processing multiple fragments or fragments

from multiple browser sessions.

Siemens SIMATIC S7-1200 System Manual page 1079

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