Technical Information
RFH6xx PNDP
Function Block
Date: 12.06.2014
12
4.5.1 Mode
The RFH can communicate only with one transponder at the same time. Therefore, reading
and writing orders are always executed in an address. In order to identify the transponders,
the UID (Unique Identifier) is being used.
In order to determine with which transponder the UID should communicate, the function
block supports two modes:
Mode 1: It is always communicated with the transponder that is actually in the reading field.
This mode can only be used if there is exactly one tag in the field.
Mode 2: A from the user defined transponder-UID is used for the communication.
Parameter
Declaration
Data type
Description
Mode.bMode
Input
BOOL
Address mode
FALSE: Mode 1 active
TRUE: Mode 2 active
Mode.arrUID
Input/Output
INT
Transponder Identification (UID)
In mode 1 the UID is read automatically
Table 1: Mode Parameter
