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Response:
Result byte
If success, return ACK.
If failed, return NAK <Error Code>
Task ID
'52’
‘46’
Function ID
‘B0’
Length
Length of data
Data
•
Display mode
0: Cancel (user presses cancel key on the keypad for mode 1, 4 and 5)
1: Menu Display
2: Normal Display get function key
3: Display without key input
4: Normal Display get account number
5: Normal Display get numeric key
8: Language Menu Display
16: Clear Screen (Do Not Receive Input Data)
Note:
If Mode byte is “Cancel”, there’s no need to send the field below, but
MAC is required.
•
If Normal Display, Length of Key (for function key, length is 1)
•
If Normal Display, Key0...KeyN, ASCII format
•
If Menu Display, Length of Menu value
•
If Menu Display, Menu value, sequence number of selected lines, hex format
Note:
1.
This command should be issued after CR and PINPAD have established MAC Key .
2.
In response to this command, PINPAD will control its LCD display.
3.
When display message has more characters than the LCD screen can support, use F1 key as page
up and F2 key as page down.
Function Key Value, ASCII of the 1
st
character:
C
ancel: 0x43
B
ackspace: 0x42
E
nter: 0x45
#: 0x23
*: 0x2A
F
1 (pg up): 0x46
F2 (pg dn): 0x47
F3: 0x48
11.7
Get PIN (command only between CR-PINPAD)
Command:
Task ID
'65'
‘46’
Function ID
'AE'