User Manual

Technical data
A.8 Technical data: LOGO! 12/24... LOGO! DM8 12/24R
LOGO!
306 Manual, 06/2014, A5E33039675
LOGO! 12/24RCEo
LOGO! 12/24RCE
LOGO! DM8 12/24R
Voltage failure buffering
• 12 VDC
• 24 VDC
• Typ. 2 ms
• Typ. 5 ms
• Typ. 2 ms
• Typ. 5 ms
Power loss
• 12 VDC
• 24 VDC
• 0.4 W to 1.7 W
• 0.4 W to 2.2 W
• 0.2 W to 1.0 W
• 0.3 W to 1.0 W
Backup of the real-time clock at
25 °C
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 VDC 28.8 VDC
Input voltage L+
• Signal 0
• Signal 1
• < 5 VDC
• > 8.5 VDC
• < 5 VDC
• > 8.5 VDC
Input current at
• Signal 0
• Signal 1
< 0.88 mA (I3 to I6)
< 0.07 mA (I1, I2, I7, I8)
> 1.5 mA (I3 to I6)
> 0.12 mA (I1, I2, I7, I8)
< 0.88 mA
> 1.5 mA
Delay time at
• 0 to 1
• 1 to 0
• Typ. 1.5 ms
<1.0 ms (I3 to I6)
• Typ. 1.5 ms
<1.0 ms (I3 to I6)
• Typ. 1.5 ms
• Typ. 1.5 ms
Line length (unshielded)
Max. 100 m
Max. 100 m
Analog inputs
Number
4 (I1=AI3, I2=AI4, I7=AI1, I8=AI2)
- -
Range 0 VDC to 10 VDC
Input impedance 72 kΩ
- -
Cycle time for analog value
generation
300 ms - -
Line length (shielded and
twisted)
Max. 10 m - -
Error limit
± 1.5% at FS
- -