Omron FZ4 Series User Manual page 477

<Command>
<Response>
IMAGEUNITNO or IUN
Getting the number of the currently displayed unit
Gets the number of the sub-image currently displayed in the specified display image window.
<Command format>
or
(Response format)
When processing is performed normally
When processing is not performed normally
(Parameters explanation)
Display image Specify the number of the display image window getting the unit number (0-4).
window number Reference:
Unit No. Responds with the number of the unit displayed in the current display image window.
(Example)
When getting the number of the unit being displayed in display image window "1"
<Command>
FZ4 User's Manual
Display image window numbers (p.467)
Controlling/Outputting through Serial Communication (Non-procedure)
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