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3.Message Format
SYNC LNG CMD DATA EXT CHECKSUM
SYNC 1 byte : Message transmission start code[90h] fixed
LNG 1 byte : Data Length (Total number of bytes from SYNC to checksum)
CMD 1 byte : Command status
DATA 0 ~ 255 byte : Data necessary for command(omitted by CMD)
EXT 1 byte : 03H End of Message byte
CHECKSUM 1 byte : check code by SUM result method without carry
============================================================================
4.Transmission, reception message format
Transmission and reception message format is divided into the fllow five type.
(1) Polling format (CONTROLLER=>ACCEPTOR)
SYNC LNG CMD EXT CHECK
SYNC : [90H]
LNG : Length
CMD : [11H]
EXT : [03H]
CHECK : Check code by SUM method
(2) ACK format (CONTROLLER=>ACCEPTOR/ACCEPTOR=>CONTROLLER)
SYNC LNG CMD EXT CHECK
SYNC : [90H]
LNG : Length
CMD : [50H]
EXT : [03H]
CHECK : Check code by SUM method
(2) NAK format (CONTROLLER=>ACCEPTOR/ACCEPTOR=>CONTROLLER)
SYNC LNG CMD EXT CHECK
SYNC : [90H]
LNG : Length
CMD : [4BH]
EXT : [03H]
CHECK : Check code by SUM method
(3) Command format (CONTROLLER=>ACCEPTOR)
SYNC LNG CMD DATA EXT CHECK
SYNC : [90H]
LNG : Length
CMD : Command
DATA : Data necessary for command (Omitted by CMD)
EXT : [03H]
CHECK : Check code by SUM method
(4) Response format I (ACCEPTOR=>CONTROLLER)
SYNC LNG SST EXT CHECK
SYNC : [90H]
LNG : Length
CMD : Command
EXT : [03H]
CHECK : Check code by SUM method
(5) Response Format II (ACCEPTOR=>CONTROLLER)
SYNC LNG CMD DATA EXT CHECK
SYNC : [90H]
LNG : Length
CMD : Command
DATA : Data necessary for command (Omitted by CMD)
EXT : [03H]
CHECK : Check code by SUM method
============================================================================
5.PROTOCOL CONTENT
1.>RESET
CONTROLLER => ACCEPTOR ACCEPTOR => CONTROLLER
90H+05H+40H+03H+D8H ACK 90H+05H+50H+03H+E8H
OR
INVALID COMMAND 90H+05H+4BH+03H+E3H
2.>COIN TYPE
CONTROLLER => ACCEPTOR ACCEPTOR => CONTROLLER
90H+05H+90H ACK 90H+05H+50H+03H+E8H
+DATA0~DATA15+03H+CHECKSUM OR
INVALID COMMAND 90H+05H+4BH+03H+E3H
3.>STATUS REQUEST
CONTROLLER => ACCEPTOR ACCEPTOR => CONTROLLER
90H+05H+11H+03H+A9H IDILING 90H+05H+11H+03H+A9H
ACCEPT 90H+06H+12H+COIN CHANNEL
+03H+AAH
REJECT 90H+05H+13H+03H+ABH
DISABLE 90H+05H+14H+03H+ACH
COIN JAMED 90H+05H+15H+03H+ADH
SENSOR PROBLEM 90H+06H+16H+sensor no
+03H+checksum
FISHING 90H+05H+17H+03H+AEH
CHECKSUM ERROR 90H+05H+18H+03H+AFH
INTO LEARN MODE 90H+05H+19H+03H+B0H
4.>COIN VALUE
CONTROLLER => ACCEPTOR ACCEPTOR => CONTROLLER
90H+05H+80H+03H+18H COIN VALUE 90H+06~134H+80H+
DATA1~128+03H+checksum
5.>VERSION REQUEST
CONTROLLER => ACCEPTOR ACCEPTOR => CONTROLLER
90H+05H+81H+03H+19H S/W VERSION 90H+11H+81H+
DATA1~8+03H+checksum