| 
				 Model  | 
			
				 SM321 Number of digital inputs:32  | 
		
| 
				 Product Description  | 
			
				 
					32DI 24V DC, 
  | 
		
| 
				 Power consumption  | 
		|
| 
				 ·From bus current consumption  | 
			
				 50mA  | 
		
| 
				 ·Power loss  | 
			
				 6.5W  | 
		
| 
				 Number of digital inputs  | 
			
				 32  | 
		
| 
				 Cable Length (Shielded)  | 
			
				 1,000m  | 
		
| 
				 Cable Length (unshielded)  | 
			
				 600m  | 
		
| 
				 Input voltage  | 
		|
| 
				 ·Rate value  | 
			
				 24V DC  | 
		
| 
				 ·For ”0” signal  | 
			
				 -30~5V DC  | 
		
| 
				 ·For ”1” signal  | 
			
				 13~30V DC  | 
		
| 
				 ·Frequency range  | 
			
				 /  | 
		
| 
				 Input current  | 
			
				 7mA  | 
		
| 
				 Input delay  | 
			
				 
  | 
		
| 
				 ·From “0” to “1”,Min  | 
			
				 1.2~4.8ms  | 
		
| 
				 ·From “1” to “0”,Min  | 
			
				 1.2~4.8ms  | 
		
| 
				 Front connector  | 
			
				 40-pin  | 
		
| 
				 Input type  | 
			
				 NPN  | 
		
| 
				 Connection of 2-wire BERO sensor  | 
			
				 Yes  | 
		
| 
				 Permissible quiescent current  | 
			
				 1.5mA  | 
		
| 
				 Isolation tested for contact  | 
		|
| 
				 ·Between channel and backplane bus  | 
			
				 Yes  | 
		
| 
				 ·Per group between channels  | 
			
				 Yes  | 
		
| 
				 The status indicates  | 
			
				 Green LED each channel  | 
		
| 
				 Dimensions(WxHx D)(mm)  | 
			
				 40×125×120  | 
		
| 
				 Order Number  | 
			
				 321-1BL00-0AA0  | 
		
	