Vhl_Write - Siemens SIMATIC RF1000 Series Operating Instructions Manual

Function call
int
vhl_read(
int Handle,
byte VHLFile,
word Address,
word Length,
byte * Data,
int * Status
);
Table 6- 13
Parameter
vhl_read
Return value
6.2.1.12

vhl_write

This function writes data to a memory area that is stored in a VHL file previously stored in
the reader. The VHL configuration stored in the reader is configured with the "VHLFile ID".
When a card is located in the antenna field and the function was completed, the status "OK"
is returned.
Note that this function always returns the return value "CARD_NOT_SELECTED_ERR"
when a card is displayed to the reader without the "vhl_select" function being executed first.
SIMATIC RF1000
Operating Instructions, 02/2019, C79000-G8976-C432-04
Description of the parameters
Description
The parameter reads a previously specified memory area from the card.
Handle The session key returned by the function "brp_open_usb_session".
VHLFile Number of the VHL file that is to be used.
Address Start address of the data that is going to be read.
Length Length of the data that is going to be read as of the start address.
Data Area in which the received data is stored (max. 65535 bytes).
Status
OK
•
CARD_NOT_SELECTED_ERR
•
HF_ERR
•
HW_ERR
•
CONFIG_ERR
•
AUTH_ERR
•
READ_ERR
•
You will find more information on the reader status in the section "Status
codes (Page 43)".
BRP_OK
•
You will find more information on return values in the section "Return val-
ues (Page 31)".
Programming
6.2 Programming via USB interface
27