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Industry Automation and Drive Technologies - SCE

TIA Training Document

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Module E11

Status: 01/2010 Radio Frequency Identification (RFID) with SIMATIC S7-300F-2PN/DP and

RF180C

DB45 Reader Parameter Block

Each MOBY channel (reader) needs its own parameters. These are predefined in a data structure as

UDT 10 (with English comments), UDT 11 (with German comments) and UDT 14 (with Spanish

comments). This UDT has to be called for each MOBY channel in a data block. In UDT 11, different

variables are defined:

• INPUT parameters: The user has to enter these variables once during configuration (exception:

command_DB_number/command_DB_address). It is not necessary to change or poll these

parameters during the entire execution time.

Please note that when an INPUT parameter is changed, an init_run has to be performed before the

new setting takes effect (refer to chapter "Programming Restarts and Warm Restarts").

• Control bits: With these Boolean variables, the user starts his commands.

• Displays: The displays show the user the progress of his commands. Errors are easy to analyze.

• Internal FB variables: These variables are of no significance to the user. They must not be changed

by the application. Otherwise, malfunction and data corruptions would be the result.

Generating DB45

Open DB45 and insert UDT11 for each reader

In DB45, UDT11 is called for each reader

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Siemens S7-300F-2 Manual do Utilizador Página 30