ACS ACR1281U-C8, Programming Manual

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ACR1281U-C8 – Application Programming Interface
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4.0. General Card Commands
Note: All Card APIs involving SECTOR and BLOCK parameters please refer to Appendix E for
further explanation.
4.1. ACR120_Select
Selects a single card and returns the card ID (serial number).
High Level API :
DLLAPI INT16 AC_DECL
ACR120_Select( UINT16 hReader,
UINT8* pResultTagType,
UINT8* pResultTagLength,
UINT8 pResultSN[10]);
Parameters Description
hReader Handle to the reader returned by AC_Open()
pResultTagType Contains the selected TAG type
pResultTagLength Contains the length of the selected TAG
pResultSN If the pResultTagLength = 4 or 7 or 10, the pSN
contains the selected card ID (Serial Number). The ID
may be 4 or 7 or 10 bytes long.
Return Value INT16 Result code. 0 means success.
Table 16 : ACR120_Select Command Description
Low Level Frame Structure:
Command: From PC to Reader (5 Bytes)
Command Code
(1 byte)
Command Data Length
(1 byte)
Instruction Code
(1 byte)
Data Length
(1 byte)
E0h 02h 00h 00h
Response: From Reader to PC (18 Bytes) << Success>>
Response
Code
(1 byte)
Response
Status
(2 bytes)
Response
Data
Length
(2 bytes)
Response Data
(1 byte) (1 byte) (1 byte) (10 bytes)
E1h INT16 (>=0) 000Dh 01h pResultTagType pResultTagLength
pResultSN
(Serial Number)