Intermec EasyCoder PL-Series, Руководство программиста

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Chapter 12— LCD Programming for PL-Series
112 EasyCoder PL-Series Printer Programmer’s Reference Manual
Using the Information in This Chapter
PL-Series printers with the LCD control panel option use the WML
language to create screens or cards for the display. This chapter explains
the WML tags and commands used to create a menu for the LCD. The
file should be named INDEX.WML. You can send this file to the printer
using an FTP session or using Intermec PLUS. By using a line like
$(vnd.zo. parameter name )
, you can display the value of that
parameter name as seen in Example 1. Refer to Chapter 13,
“Configuration/Control Commands,” for complete information on
available parameters.
Refer to “Table 1: WML Tags Used on PL-Series Printers” at the end of
this chapter for information on WML tags used by the PL-Series display.
The first card to be displayed should always be called main. The next two
sections provide examples. Example 1 demonstrates the timer function and
uses this to refresh the LCD to give a current battery voltage, head latch
status, and paper out status. In the example each line is followed by a
CR/LF (0x0D/0x0A).
Example 1
This is a complete menu that demonstrates most of the tags from “Table 1:
WML Tags Used on PL-Series Printers” at the end of this chapter. The
<do> tag is shown in Example 2.
Language Tag
<wml>
Direct output to the LCD screen
<display>
Begin card named netset, with no title and a 10-second
delay go back to the main card.
<card id=”netset” title=” “ ontimer=”#main”> <timer
value=”100"></timer>
Display the IP address
<p>IP:$(vnd.zo.ip.addr)</p>
Line Break
<br/>
Display the PORT number
<p>TCP
Port:$(vnd.zo.ip.port)</p>
Line Break
<br/>
Display the ESSID
<p>eSSID:$(vnd.zo.wlan.current_essid)
</p>
Line Break
<br/>
Display the associated status
<p>Associated:$(vnd.zo.wlan.associated)
</p>
Display a link back to the main card
<p><a
href=”#main”>back</a></p>
Close the card tag