Creator CRT-541 - Typical Communication Process between Host & Unit; Normal Process O F Dispending; Received Dispensing Command; Received Dispensing Command While Dispenser Error

14
Model No. CRT-541
SPECIFICATION
Date 2010/01/10
Ver. 1.0
Card Dispenser
Page
11/16
5.1 Typical Communication Process Between Host & Unit
5.1.1 Normal process of dispensing
The host Unit
Enquiry command
ACK+ADDRESS
Card dispensing success last time
Enquiry command
ACK+ADDRESS
Unit is ready with cards
(Including lacking of card)
Dispensing command
ACK+ADDRESS
Execute dispensing command
5.1.2 Received Dispensing Command
The host Unit
Enquiry command
ACK+ADDRESS
Dispensing or pre-dispensing
Waiting for a whilesuggest>200ms
Repeat above communication process till turn to 5.1.1 process
5.1.3 Received dispensing command while dispenser error
The host The unit
Inquiry command
ACK+ADDRESS
Dispenser error
Waiting for a while>200ms
Repeat above communication process twice, suggest the host alarm error
Note
1 The host should not communicate with another unit before the ending of
communication with one unit to guarantee the communication fluency.
2 ACK+ ADDRESS is positive answer ADDRESS is the address of
dispensertotally 2 bytessending high address byte first, then low
address byte.
3 NAK ADDRESS is negative answer ADDRESS is the address of
dispensertotally 2 bytessending high address byte first, then low
address byte.
4 For example: The response code is 0x06 0x30 0x31 while Unit No.1 give
the host positive answer.