Siemens SIMATIC HMI OP 77B Operating Instructions Manual page 14

7 H F K Q L F D O ' D W D
Memory
Working memory
Memory card
Power supply
Rated voltage
Range, permissible
Transients, maximum permissible
Time between two transients,
minimum
Power consumption
•
Typical
•
Constant current, maximum
•
2
Power on current surge I t
•
USB interface
Fuse, internal
2–2
Release 03/2004
1 MByte
MMC, optional
24 V DC
+18 V to +30 V
35 V (500 msec)
50 s
Approx. 200 mA
Approx. 300 mA
2
Approx. 0.5 A s
Approx. 100 mA
Electronic
Operating Instructions (Compact) OP 77B
6AV6691-1EA01-0AB0