Siemens LOGO! Series - Technical Data: LOGO! 12;24; A.8 Technical Data: LOGO! 12;24... LOGO! DM8 12;24 R

Technical data
A.8 Technical data: LOGO! 12/24... LOGO! DM8 12/24R
LOGO!
334 Manual, 04/2011, A5E03556174-01
A.8 Technical data: LOGO! 12/24... LOGO! DM8 12/24R
LOGO! 12/24RC
LOGO! 12/24RCo
LOGO! 12/24RCE
LOGO! DM8 12/24R
Power supply
Input voltage 12/24 V DC 12/24 V DC
Permissible range 10.8 ... 28.8 V DC 10.8 ... 28.8 V DC
Reverse polarity protection Yes Yes
Power consumption
• 12 V DC
• 24 V DC
• 60 ... 175 mA
• 40 ... 100 mA
• 30 ... 140 mA
• 20 ... 75 mA
Voltage failure buffering
• 12 V DC
• 24 V DC
• typ. 2 ms
• typ. 5 ms
• typ. 2 ms
• typ. 5 ms
Power loss
• 12 V DC
• 24 V DC
• 0.7 ... 2.1 W
• 1.0 ... 2.4 W
• 0.3 ... 1.7 W
• 0.4 ... 1.8 W
Backup of the real-time
clock at 25 °C
• LOGO! 12/24RC/RCo:
typ. 80 hours without battery card
typ. 2 years with battery card
• LOGO! 12/24RCE:
typ. 20 days
- -
Accuracy of the real-time
clock
typ. ± 2 s / day - -
Electrical isolation No No
Digital inputs
Number 8 4
Electrical isolation No No
Number of high speed inputs 4 (I3, I4, I5, I6) 0
Input frequency
• Normal input
• High speed input
• Max. 4 Hz
• Max. 5 kHz
• max. 4 Hz
• - -
Max. continuous permissible
voltage
28.8 V DC 28.8 V DC
Input voltage L+
• Signal 0
• Signal 1
• < 5 V DC
• > 8.5 V DC
• < 5 V DC
• > 8.5 V DC