User's Manual

PIN Pad 791 Programmer’s Manual (PCI POS-A) UDN PM0103-U Rev. 06
Section 11 – ICC / SAM / Magnetic stripe card manipulating messages 2015-04-20
Page283
Uniform Industrial Corp. Proprietary and Confidential Total 342 pages
Message Q7MSR Mode Query
Format: <STX>Q7<ETX>[LRC] (request frame)
<STX>Q7[status]<ETX>[LRC] (response frame)
Message length: Fixed 5 bytes for request, 6 bytes for response.
Usage: This command will query MSR processing option.
Message element:
Request fame (HOST to PP791)
Field Length Value and description
<STX> 1 <02>
Q7 2 Message ID
<ETX> 1 <03>
[LRC] 1 Checksum
Response fame (PP791 to HOST)
Field Length Value and description
<STX> 1 <02>
Q7 2 Message ID
[status] 1 ‘0’: Clear-Text Card Data
‘2’: Clear-Text Card Data with Sentinels.
<ETX> 1 <03>
[LRC] 1 Checksum
Message flow:
HOST Direction PIN pad
Message Q7
(request)


<ACK> (Good LRC)
<NAK> (Bad LRC)
<EOT> (after 3 NAKs)

Message Q7
(response)
<ACK> /
<NAK> /
<EOT>
