xiQ Specification of digital Inputs / Outputs¶
	
General specification related to camera¶
	
		
			|  Parameter                     | 
			 Value     | 
			 Note  | 
		
		
			|  Pollution degree             | 
			 Degree 1     | 
			 No pollution or only dry, non-conductive pollution occurs. The pollution has no influence.  | 
		
		
			|  Limited power circuit             | 
			 Yes, <30VDC     | 
			 Inherently limited power sources, IEC 61131-2, Section 11.3, Table 45  | 
		
		
			|  Overvoltage category             | 
			 Category II     | 
			 Vpeak=500V  | 
		
		
			|  Material group             | 
			 all             | 
			 Material group is not specified  | 
		
		
			|  Micro-environment             | 
			 yes             | 
			 Voltages are known and controlled  | 
		
		
			|  Protective coating on PWB     | 
			 no             | 
			   | 
		
	
	
Digital Input Specification¶
	Digital input complies with standard IEC 61131-2 
(Programmable controllers - Part 2: Equipment requirements and tests)
	
		
			|  Parameter                     | 
			 Value     | 
			 Note  | 
		
		
			|  Compliance  | 
			 According IEC IEC 61131-2  | 
			  | 
		
		
			|   Input levels according IEC 61131-2  | 
			 Type 1  | 
			 Device for sensing signals from mechanical contact switching devices, such as relay contacts, push-buttons,  switches,  etc.  Converts  an  essentially  two-state  signal  to  a  single-bit  binary number  | 
		
		
			|  Indication  | 
			 No  | 
			 No visual indicator  | 
		
		
			|  Rated input voltage  | 
			 24V DC  | 
			  | 
		
		
			|  Common pole  | 
			 yes, common pole with digital output  | 
			  | 
		
		
			|  Effect of incorrect input terminal connection  | 
			 Reverse voltage polarity protected  | 
			  | 
		
		
			|  Isolation  | 
			 yes, optical  | 
			  | 
		
		
			|  Isolation potential  | 
			 50V DC  | 
			 between channel  and  other  circuits  (including  ground)  | 
		
		
			|  Effects when withdrawing/inserting input module under power  | 
			 no damage, no lost data  | 
			  | 
		
		
			|  Maximal recommended cable length  | 
			 10m  | 
			  | 
		
		
			|  Number of inputs  | 
			 1  | 
			  | 
		
	
	
Digital Output Specification¶
	Digital output does not comply with standard IEC 61131-2, Table 9
(lower output current rating as required by standard)
	
		
			|  Parameter                     | 
			 Value     | 
			 Note  | 
		
		
			|  Compliance according IEC IEC 61131-2  | 
			 no  | 
			  | 
		
		
			|  Maximal open circuit voltage  | 
			 24V DC  | 
			  | 
		
		
			|  Isolation  | 
			 yes, optical  | 
			  | 
		
		
			|  Output port type  | 
			 Open collector NPN  | 
			  | 
		
		
			|  Protection  | 
			 short-circuit / over-current  | 
			  | 
		
		
			|  Protection circuit  | 
			 PTC Resettable Fuse  | 
			  | 
		
		
			|  Maximal sink current  | 
			 25mA  | 
			  | 
		
		
			|  Trip current  | 
			 50mA  | 
			 Self-restarting when failure mode current disconnected | 
		
		
			|  Inductive loads  | 
			 no  | 
			  | 
		
		
			|  Common pole  | 
			 yes, common pole with digital input | 
			  | 
		
		
			|  Indication  | 
			 No  | 
			 No visual indicator  | 
		
		
			|  Number of outputs  | 
			 1  | 
			  |