Thank you very much for reply. Excuse me for error I have a bad connection and I dont see the reply button. QUOTE Is this the Power Light on the CPU? Is there a RUN light? There is a RUN light? QUOTE Is this a PRO15? Does it have a green backlight on the LCD display? I not be sure but it have a green backlight on the LCD display? QUOTE Is this 120VAC or 24VDC The v24VDC