Siemens S7-300F-2 Bedienungsanleitung PDF herunterladen (Seite 46)

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

Command and Status Word "BEST"

The control bits of FB45 are defined in the command and status word.

The command and status word with the variables is generated with UDT 11.

The variables and the associated relative addresses in UDT 11 are shown in the figure below.

Control bits:

The user starts his commands with these Boolean variables.

Relative address in UDT 10

Has to be set by the user

Must absolutely be polled by the

user

Optimal scanning bits

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 64 65

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Siemens S7-300F-2 Bedienungsanleitung Seite 46