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Read/Write data from Allen Bradley Compact/Control Logix PLC's

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USAGE
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1) from eip import PLC

2) test = PLC()

3) Set the IP Address: test.IPAddress = "192.168.1.0"

4) If your processor is in a slot other than 0, set that: test.ProcessorSlot = 1

5) Do one of the following:

    Read a value:  value = test.Read("tagname")
	ex: value = test.Read("MyTimer.ACC")
		    print value
	
    Read an array: value = test.Read("tagname", length)
	ex: value = test.Read("MyDINT", 10)
		    print value(3)
		    
    Read multiple tags at once: test.MultiRead("tag1", "tag2", "tag3")
	ex: values = test.MultiRead("MyDINT", "MyTimer.ACC", "AnotherDINT")
	    print values
		    
    Write a value: test.Write("tagname", value)
	ex: test.Write("MyDINT", 1337)
	
    Get all Ethernet I/P devices on the network test.Discover()
	ex:  stuff = test.Discover()
	     print stuff(1).Address # prints the first devices IP Address
		    
	
So a complete script to read a tag would look like this:

from eip import PLC
test = PLC()
test.IPAddress = "192.168.1.64"
value = test.Read("MyTimer.ACC")
print value

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