
Tổng quan các họ CPU:
| 
				 
					CPU 312 
			 | 
			
				 
					CPU 314 
			 | 
			
				 
					315-2 DP 
			 | 
			
				 
					CPU 317-2 DP 
			 | 
			
				 
					CPU 318-2 DP 
			 | 
		|
| Instr. / Data | 16 KB | 48 KB | 128 KB | 512 KB | 84K/ 256 KB | 
| User memory | 512 KB | ||||
| DI/ DO | 256 | 1024 | 1024 | 1024 | 1024 | 
| AI/ AO | 64 | 256 | 256 | 256 | 256 | 
| Processingtime | |||||
| Bit instruction | 0,2 µs | 0,1 µs | 0,1 µs | 0,05 µs | 0,1 µs | 
| Worrdinst. +/- I | 2 µs | 1 µs | 2 µs | 0,2 µs | 0,1 µs | 
| Floatingp. +/- R | 6 µs | 3 µs | 3 µs | 1,0 µs | 0,6 µs | 
| Flags | 1024 | 2048 | 16384 | 32768 | 8192 | 
| Counters | 127 | 256 | 256 | 512 | 512 | 
| Timers | 128 | 256 | 256 | 512 | 512 | 
| Connections | 6 | 12 | 16 | 32 | 32 | 
| Interfaces | PROFIBUS- DP Master/ Slave | PROFIBUS- DP (Master/ Slave) MPI a. DP useab | PROFIBUS- DP (Master/ Slave) MPI als DP useab. | 
| 
				 | 
			
				 
					Digital Inputs 
			 | 
			
				 
					Digital outputs 
			 | 
		
| Voltage/current rate | 
				 
					DC 24 … 125V 
				
					AC 120/230 V 
			 | 
			
				 
					DC24/46 … 125 V 
				
					AC 5 … 230V 
				
					0.5/1/2/5A 
			 | 
		
| 
				 
					Channels 
				
					(optically isolated) 
			 | 
			8, 16, 32 | 
				 
					8, 16, 32 
				
					Electr./ Relay 
			 | 
		
| 
				 
					Analog Inputs 
			 | 
			
				 
					Analog Outputs 
			 | 
		|
| Voltage/ current range | 
				 
					+/- 80mV … 10V, 
				
					+/- 3,2mA, 
				
					0/4 … 20mA u.a. 
			 | 
			
				 
					+/- 10V, 0 …10V 
				
					+/- 20mA 
				
					0/4 … 20mA, u.a. 
			 | 
		
| 
				 
					Channels 
				
					(optically isolated) 
			 | 
			2, 4, 8 with intergrated linearization | 2, 4, 8 | 
| Sensor | 2-, 3-, 4- wire resistor (Pt100), thermocouples | |
| Resolution | 9 to 16 bit incl. sign bit | 12 – 16 bit inl. sign bit | 
| Encoding time | 2,5 … 10ms | 0,8 ms | 
| Ex (I) | Namur / Ex (i) | Namur / Ex (i) | 
| Diagnostics | yes | 
				 
					yes 
				 |