User's Manual

PIN Pad 791 Programmer’s Manual (PCI POS-A) UDN PM0103-U Rev. 06
Section 5 – Administration and maintenance messages 2015-04-20
Page63
Uniform Industrial Corp. Proprietary and Confidential Total 342 pages
Message 1KTurn ON/OFF LCD Power-save mode
Format: <SI>1K[option]<SO>[LRC]
Message length: Fixed 6 bytes.
Usage: For power consumption saving, this message can make PP791 turns the backlight
level to darker after several seconds automatically. The backlight level will return to the
value set before when a key strobe is pressed, a message about PIN entry or key entry
is received.
Message element:
Request frame (HOST to PIN Pad)
Field Length Value and description
<SI> 1 <0F>
1K 2 Message ID
[option] 1 ASCII character
‘0’: Turn off LCD power-save mode
‘1’: Turn on LCD power-save mode
<SO> 1 <0E>
[LRC] 1 Checksum
Response frame (PIN Pad to HOST)
Field Length Value and description
<SI> 1 <0F>
1K 2 Message ID
[status] 1 ASCII character
‘0’: Turn off LCD power-save mode
‘1’: Turn on LCD power-save mode
<SO> 1 <0E>
[LRC] 1 Checksum