PX 30 and PX 120 Operating Manual
3-3
For further details of codes and their features, please refer below to the section entitled
"Coding".
In special mode, the following special functions are supported:
• Segment test
• Output of version number
• Automatic display of the text memory contents
• Clear display
• Status display
Parallel Drive through a PLC's I/O-level
Display Mode
Coding
For parallel drive of the PX 30 and PX 120 in display mode, two base settings can be
configured for data coding:
• Binary-coding (default)
• BCD-coding
The required coding method (binary or BCD) is set in the $M-configuration instruction (see
section entitled "Configuration" on page 6-1) and is then used for communicating text
numbers (text selection in text mode).
If no $M-configuration instruction is present, both the PX 30 and PX 120 will operate in
binary code in display mode (default setting).
In variable mode when binary coding has been configured, or the default setting is un-
changed, variable values can be transmitted in three ways:
• Binary-coded
• BCD-coded or
• ASCll-coded
If BCD-coding has been configured, variable values can be transmitted in two ways:
• BCD-coded or
• ASCll-coded
The variable code is selected in the 1st cycle of each new variable transmission.
The diagram overleaf shows the function and layout of inputs E0 - E7 in the 1st cycle of
each variable transmission (ID-Byte).
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com