254764-001 Rev B 45
OUTPUT INTERFACE MODES DESCRIPTIONS
Output interface modes are used to set the SV 2 Series for particular ways to activate output ports. The
mode is set via the ~LV## command. The following list describes the standard output interface modes
available in SV firmware versions x270 and higher. Each description includes the commands for
programming the particular parameters that can activate the proper ports for that mode. Custom modes are
available – contact PRINTRONIX Technical Support.
After programming the SV unit for the desired port activation parameters, it is recommended to review
them. When using ScanVision, this can be done via the Transmit SV Commands Window by sending the
~HT
command to review all scanner settings, and sending the
~PT8
command to review all quality
parameter failure threshold settings.
Mode 00 (~LV00)
This mode does not activate output ports. Only the serial communications port is active.
Mode 01 (~LV01)
A.
Mode 01 I/O operation
1.
System will operate in Edge Sync or Envelope sync mode
(~LX#)
2.
Sync polarity programmable
(~LP#)
3.
Use
~PR0210
for proper port initialization.
4.
Port 1 will go active OFF (no current) on an error condition.
5.
Port 2 will go active ON (sink current) on an error condition.
6.
Pushing the reset button or power re-cycle will place Ports 1 and 2 in their inactive states and
reset the # codes per sync counter.
7.
Error conditions available are:
a.
Partial Read (Programmable,
~LQ#, ~Lp#)
b.
% decode (Programmable,
~LD##)
c.
Bad Quiet Zone
(~PB816xxx100)
d.
ANSI Defects grade (Programmable,
~PB806xxx000)
e.
ANSI Decodability (Programmable,
~PB802xxx100)
f.
Symbol Contrast grade (Programmable,
~PB804xxx100)
g.
No Read (if sync is received)
h.
Number of codes per sync programmable
(~LN##, ~LZ##)
i.
Overall ANSI Grade (Programmable,
~LAxx)
j.
Symbology modulo check digit
B.
Mode 01 LED Operation
1.
LED1 will turn on if Outputs 1 and 2 go active due to ANSI, contrast, or quiet zone failure
2.
LED2 will turn on if Outputs 1 and 2 go active due to a partial or no read condition
Note; Both LEDs can be on in cases where multiple bar codes are analyzed in a sync period.
C.
SV Commands Important to Mode 01
This system is operating in a “mode” rather than fully programmable logic. The port activation parameters
are programmable via the ~PB8 rather than ~PB1, ~PB2, etc. for each individual port. Other commands,
such as mode commands are also available. The commands most useful for this system application are
described below.
~LV01
This command sets this mode of operation.
~Lp0
This command turns off all partial decode logic at the decoder level
