ACS ACR1281U-C8, Programming Manual

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ACR1281U-C8 – Application Programming Interface
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Page 37 of 52
5.7. ACR120_Inc
Increments a value block by adding a value to the value stored.
High Level API :
DLLAPI INT16 AC_DECL
ACR120_Inc ( INT16 hReader,
UINT8 Block,
INT32 Value,
INT32* pNewValue);
Parameters Description
hReader Handle to the reader returned by AC_Open()
Block Block number
Value Value added to the block value
pNewValue Updated value after increment
Return Value INT16 Result code. 0 means success.
Table 26 : ACR120_Inc Command Description
Low Level Frame Structure:
Command: From PC to Reader (10 bytes)
Command Code
(1 byte)
Command Data Length
(1 byte)
Instruction Code
(1 byte)
Data Length
(1 byte)
Data
(1 byte) (4 bytes)
E0h 07h 0Fh 05h Block Value
Response: From Reader to PC (9 bytes) <<Success >>
Response Code
(1 byte)
Response Status
(2 bytes)
Response Data Length
(2 bytes)
Response Data
(4 bytes)
E1h INT16 (>=0) 0004h pNewValue
Or
Response: From Reader to PC (5 bytes) << Fail>>
Response Code
(1 byte)
Response Status
(2 bytes)
Response Data Length
(2 byes)
E1h INT16 (<0) 0000h