Siemens SIMATIC Ident RF200 Operating Manual

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Scan mode function extension for ASCII readers3.1 Retentively enabling/disabling scan modeASCII protocol for RF20024 Operating Manual, 11/2016, C79000-G8976-C329-043.1 Retentively enabling/disabling scan modeYou can enable scan mode by executing the “SYSTEM” command with the function identifier“FKT = 0x08”.Command Value DescriptionSYSTEM 0xAA Retentively enable scan mode• FKT = 0x08• PARA = 0x01Enable scan mode (disable ASCII mode)Scan mode is enabled using the “SYSTEM” command, as described below:Table 3- 1 Structure of the “SYSTEM” commandSTX Net data {optional:LF}ETXLength Com-mandStatus FKT PARA Res.0x02 0x05 0xAA 0x00 0x08 0x01 0x00 0x0A 0x03The reader is in scan mode as soon as the command has been successfully acknowledged.Disabling scan mode (enabling ASCII mode)To disable scan mode, you must set the “Scan mode” parameter to the value “0x02” usingthe “Change parameters” frame.Table 3- 2 Structure of the “Change parameters” frame (binary)Command parameter Frame parameterByte 1 Byte 2 Byte 3 Byte 1 Byte 2 Byte 3 Byte 4Command Status Count Tag type Modulation Subcarrier Data rate0x01 0x00 0x15 0x01 0x1E 0x00 0x00Frame parameterByte 5 Byte 6 Byte 7 ... Byte 20 Byte 21 BCCOperatingmodeScan mode Para Para Para Para0x00 0x02 ... 1) ... 1) ... 1) ... 1)If scan mode is disabled with this frame, only the scan mode parameter is evaluated; allother parameters in this frame are ignored.You will find more information on this subject as well as parameter descriptions 1) in thesections “Communication in scan mode (Page 26)” and ““Change parameters” frame(Page 29)”.