CHAPTER 38
Data exchange area
405.1200.037.2 - Rel.: 2.21 of 25/02/2008
38-2
By Communication we mean the exchange of information that occurs
between the VT and the device connected to it. Information can be
exchanged using Variables or Exchange Areas (see Software Manual for
more detailed explanation).
The Exchange Areas are divided into:
• Area for Messages:
Information messages
Alarms
• Status Areas:
Status area for the terminal
Status area for internal LEDs
Status area for external LEDs
Status area for recipes
Status area for internal keys
Status area for external keys
Status area for internal keys (Real Time)
Status area for external keys (Real Time)
Status area for printer
Trend status area
Command response area
• Command Areas
Command area external LEDs (fixed light)
Command area external LEDs (blinking light)
Command area internal red LEDs (fixed light)
Command area internal red LEDs (blinking light)
Command area internal green LEDs (fixed light)
Command area internal green LEDs (blinking light)
Area for Commands
As the Area for Messages does not depend on the type of VT, but is com-
pletely configurable using VTWIN, it will no longer be mentioned in this
chapter.
For the detailed meaning of the various areas see Software Man-
ual.
To Next Page
Loading...
