Features of the PS 4-300
13
04/99 AWB 2700-1311 GB
Figure 2: Controls and LEDs on the PS 4-300 (with the
housing flap open)
햲
Back-up battery
햳
Reset button
햴
Plug connector for local expansion modules
햵
Operating mode selector switch
햲
Backup battery
The battery backs up the internal RAM and the real-
time clock.
햲
+
Battery
Reset3 Run M-
2 Run
1 Halt
Reset
S2
3
2
1
햵
햳
햴
Warning!
The power supply must be switched on when you
replace the back-up battery, otherwise programs
and data will be lost.
H1311g.bk Seite 13 Freitag, 4. Juni 1999 1:12 13
To Next Page
Loading...
