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12.0 Commands and Responses

Commands sent to the Unit are executed as soon as they are received. While executing some processes, the Unit will not

be able to receive data from the host system. After reading a coupon, most commands will not be acted on until coupon

processing is complete.

12.1 AEA Commands/Sequences

AV - AEA Version command generates a status response identifying the AEA Version the firmware supports.

HOST command sequence: [STX]AV[ETX]

Unit response: [STX]“HCTC”AVOKnn#BGR[ETX] ; where nn = the year of the AEA release

CB - This command initiates an audible and red ● visual indicators to alert the operator that the data was not valid.

HOST command sequence: [STX]CB[ETX]

HOST command sequence: [STX]CB#nn[ETX] ; where nn = 00 – 99 for the indicator time period

Unit response: [STX]“HCTC”CBOK[ETX]

CC - This command initiates a green ● visual indicator to alert the operator that the data read was valid.

HOST command sequence: [STX]CC[ETX]

HOST command sequence: [STX]CC#nn[ETX] ; where nn = 00 – 99 for the indicator time period

Unit response: [STX]“PTTC”PROK[ETX] ; after magnetic coupon has been read

[STX]“HCTC”PROK[ETX] ; after bar code coupon has been read

There are variations of this command intended to control cutting and stacking of coupons (such as CC#L1).

These are processed in the same manner as the standard CC command.

CE - This command initiates a

red ● visual indicator to alert the operator that the data read was not valid.

HOST command sequence: [STX]CE[ETX]

HOST command sequence: [STX]CE#nn[ETX] ; where nn = 00 – 99 for the indicator time period

Unit response: [STX]“HCTC”CEOK[ETX]

CT - Hard coded Transaction code change or status. As defined by AEA, the transaction code can be any printable

ASCII character, from 1 to 5 characters maximum length. Issuing the CT command alone will cause the first

response specified below. The second example demonstrates how to change the hard coded transaction code to

“UNMK”.

HOST command sequence: [STX]CT[ETX]

Unit response: [STX]EC3:CTOKEC3:[ETX]

HOST command sequence: [STX]CTUNMK[ETX]

Unit response: [STX]UNMKCTOKUNMK[ETX]

KP - Program Delete or Terminate process is used to stop all internal processing and set up the Unit so that a new

version of firmware can be downloaded using the PD command.

HOST command sequence: [STX]KP[ETX]

Unit response: [STX]“HCTC”KPOK[ETX]

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Unimark EC3000 Series Betreibershandbuch Seite 21