Description


Digital Input and output are widely used in industrial field. DI is usually used for monitoring the status of devices such as tank level switch, DO output open/close signal to device such as motor starter or panel signal light.


Milesight controller UC11XX, UC3X, UC300 are equipped with DI/DO interface, while UC5XX equipped with GPIO that is able to serve as DI or DO, which is more flexible for you to use. Moreover, the DO on UC11XX, UC3X is different with that of UC5XX. The DO on UC11XX, UC3X is a relay to control, which means you need dry contact, whereas UC5XX is a wet contact.


This article will depict on how to wire DI/DO.  

 

Requirement


-UC5XX


-UC11XX


-UC3X


-UC300


 

Wiring Examples 


1. UC11XX/UC3X/UC300 DI


The volatage range is 0-24 VDC, 0-3 VDC as low and 3-24 VDC as high. Make sure contact type of your appliance. Besides, UC11XX/UC300 DI can work as pulse input.


If it is dry contact, wiring diagram as below:



If it is wet contact, wiring diagram as below:



2. UC11XX/UC3X/UC300 DO


The maximum range is 0-30 VDC/250 VAC, 3A. Make sure contact type of your appliance. Take bulb connection as example.


If it is normally open, wiring diagram as below:



The bulb is on only if switch open


If it is normally close, wiring diagram as below:



The bulb is off only if switch open


 


3. UC5XX DI


The volatage range is 0-3.3 VDC, 0-0.9 VDC as low and 2.5-3.3 VDC as high. The maximum current is 100 mA. Make sure contact type of your appliance.


If it is dry contact, wiring diagram as below:


If you set the GPIO as pull up:


If you set the GPIO as pull down:


If it is wet contact, wiring diagram as below:


 


4. UC50X DO




Configurations 


  1. UC11xx


For DI interfaces, navigate to General->Basic, select the Interface Type as DI or Counter mode.


Note: UC3X only supports to DI mode.



   2. UC50X


Navigate to General -> GPIO of ToolBox software or “Setting->GPIO Setting” to enable GPIO port.



Select GPIO type according to your requirements.


Digital Input: detect high or low status of devices;


Digital Output: Send voltage signal to trigger devices;


Counter: pulse counter.


 


For Digital Input: 


Select initial status of digital input. If pull up is selected, falling edge will be triggered;


If pull down is selected, rising edge will be triggered.


Click “Fetch” to check current status of digital input.


 


For Digital Output: 


Click “Switch” to check if UC50x can trigger devices by digital output.


Click “Fetch” to check current status of digital output.


 


For Pulse Counter: 


Select initial status of digital input. If pull up is selected, falling edge will be triggered and


increase 1; if pull down is selected, rising edge will be triggered and increase 1.



 


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