User Manual
Technical data   
A.5 Technical data: LOGO! DM8 24 and LOGO! DM16 24 
  LOGO! 
328  Manual, 04/2011, A5E03556174-01 
  LOGO! 24 
LOGO! 24o 
LOGO! 24C 
LOGO! 24Co 
Ohmic load/lamp load  10 Hz  10 Hz 
Inductive load  0.5 Hz  0.5 Hz 
1)
  When LOGO! 24/24o, LOGO! 24C/24Co, LOGO! DM8 24 or LOGO! DM16 24 are switched on, 
signal 1 is sent to the digital outputs for about 50 μs. Take this into account, especially when using 
devices that react to short pulses. 
2)
  The maximum switching rate is only dependent on the switching program's cycle time. 
A.5  Technical data: LOGO! DM8 24 and LOGO! DM16 24 
  LOGO! DM8 24  LOGO! DM16 24 
Power supply 
Input voltage  24 V DC  24 V DC 
Permissible range  20.4 ... 28.8 V DC  20.4 ... 28.8 V DC 
Reverse polarity protection  Yes  Yes 
Permissible mains frequency  - -  - - 
Power consumption from 24 V 
DC 
30 ... 45 mA 
0.3 A per output 
30 ... 45 mA 
0.3 A per output 
Power loss at 24 V  0.8 ... 1.1 W  0.8 ... 1.7 W 
Digital inputs 
Number  4  8 
Electrical isolation  No  No 
Number of high speed inputs  0  0 
Input frequency 
•  Normal input 
•  High speed input 
•  max. 4 Hz 
•  - - 
•  max. 4 Hz 
•  - - 
Max. continuous permissible 
voltage 
28.8 V DC  28.8 V DC 
Input voltage 
•  Signal 0 
•  Signal 1 
L+ 
•  < 5 V DC 
•  > 12 V DC 
L+ 
•  < 5 V DC 
•  > 12 V DC 
Input current at 
•  Signal 0 
•  Signal 1 
•  < 0.85 mA 
•  > 2 mA 
•  < 0.85 mA 
•  > 2 mA 
Delay time at 
•  0 to 1 
•  1 to 0 
•  typ. 1.5 ms 
•  typ. 1.5 ms 
•  typ. 1.5 ms 
•  typ. 1.5 ms 
Line length (unshielded)  max. 100 m  max. 100 m 
Digital outputs 










