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SCA Functional Specification

GET COUNTER

Last updated: 07-Apr-2025

This command retrieves the last counter used for a given MAC label.

  

Note

The COUNTER resets to 0 with each REGISTER command.

Device UI Required: No

Request Packet
Field Rule Type Min Max Value Comments
FUNCTION_TYPE Required Static
Value
ADMIN Type of function
COMMAND Required Static
Value
GET_COUNTER Command name
POS_RECON Optional Character 1 30 Ex: RetailPOS1 POS reconciliation.
NOTE: POS Reconciliation field to be echoed back in
response to POS.
MAC_LABEL Required Character 1 50 Ex: REG1 Retrieve last counter used for this MAC label.
NOTE: Do NOT send COUNTER with the GET_COUNTER
request.
Example

Following is an example of request packet

<TRANSACTION>
  <FUNCTION_TYPE>ADMIN</FUNCTION_TYPE>
  <COMMAND>GET_COUNTER</COMMAND>
  <MAC_LABEL>REG1</MAC_LABEL>
 </TRANSACTION>
Response Packet
Field Type Value Description
RESPONSE_TEXT Character   Processor response text. Example: Operation Successful
RESULT Character OK This indicates the Result details.
RESULT_CODE Numeric Expected result code: -1, 59002, 59005, 59045 This indicates the result code. Refer to Result/Error Codes for details.
TERMINATION_STATUS Character SUCCESS or FAILURE This indicates the transaction termination status. This is the overall status of the transaction irrespective of approved or declined. Like, if the output is generated then the status is SUCCESS and if no output is generated then the status will be FAILURE.
POS_RECON Character   POS reconciliation field echoed back if sent in request. Example: RetailPOS1
COUNTER Numeric   Returns the Last counter used for the given MAC label. Example: 10

Transaction Performance Metric

  

Note

These fields are returned, if SCAPERFMETRIC parameter (Application Parameters) is enabled.

Field Type Value Description
UI_TIME Time   This indicates the time duration, for which the device screen is displayed (like error message, prompt screen, remove card screen) till any user action is performed in the command execution flow. This field is not applicable to capture the time for the Processing, Authorizing and transaction status screen. The format of the returned value would be S.sss, where S is seconds (this can be 0 to any positive integer) and sss is milliseconds. In case of any insignificant time or 0.000 value, will not be returned in the response. Example: <UI_TIME>44.028</UI_TIME>
HOST_TIME Time   This indicates the time taken for the Connection to the host, sending request and receives data from the host. This field also take the cumulative time for multiple requests which may sent to the host during the transaction including two legged transactions, timeout requests, Auto Last Tran requests, DCC, Credit app proxy. The format of the returned value would be S.sss, where S is seconds (this can be 0 to any positive integer) and sss is milliseconds. In case of any insignificant time or 0.000 value, will not be returned in the response. Example: <HOST_TIME>1.389</HOST_TIME>
CMD_TIME Time   This field indicates the total amount of time for a command, which is executed by the application from request received to the response sent. The format of the returned value would be S.sss, where S is seconds (this can be 0 to any positive integer) and sss is milliseconds. In case of any insignificant time or 0.000 value, will not be returned in the response. Example: <CMD_TIME>70.765</CMD_TIME>
Example
<RESPONSE>
 <RESPONSE_TEXT>Operation Successful</RESPONSE_TEXT>
 <RESULT>OK</RESULT>
 <RESULT_CODE>-1</RESULT_CODE>
 <TERMINATION_STATUS>SUCCESS</TERMINATION_STATUS>
 <COUNTER>1</COUNTER>
</RESPONSE>

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