RS Logix 500 ethernet

TakiGRE

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• Dec 12, 2011

• #1

This is the first time I am sending information via Ethernet to another PLC (SLC 500) from a Micrologix 1500 using RS Logix 500 version 7. Does anyone know of a manual or guide that can give me some basic programming examples.

Thank you.

 

junkerjorg

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• Dec 12, 2011

• #2

I assume you mean you will be messaging data from one PLC to another via ethernet? I would suggest doing message reads from the PLC that needs data from the other.

 

TakiGRE

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• Dec 12, 2011

• #3

thank you from your reply.

Basically i want to send simple information such as, "Motor 1 ON". That would be an output. Can I use that same output bit to send a message? If yes, what would I put in my MSG instruction.

 

widelto

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• Dec 12, 2011

• #4

On the ML1500 you will need a 1761-net-eni, I guess that your SLC is a 5/05.

 

TakiGRE

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• Dec 12, 2011

• #5

I have configured the ENI and it is communicating. Yes, you are correct about the 5/05.

 

junkerjorg

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• Dec 12, 2011

• #6

I use a status OTE branched off of the motor OTE and then you can send that data from the status word or words throught the message.

 

widelto

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• Dec 12, 2011

• #7

Config when writing from 5/05 to ml1500.
your ip addresses must be different.

 

TakiGRE

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• Dec 12, 2011

• #8

thank you for your reply.

How can i set up the word? I am assuming that I would be setting that up in the MSG instruction.

 

junkerjorg

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• Dec 12, 2011

• #9

Yes it would be set up in the message instruction. widelto attached files but it would look like this picture. This message is reading 24 words from address N20:10 in the target device and storing them in N20:20 of the controller where the message resides.

 

Last edited: Dec 12, 2011

widelto

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• Dec 12, 2011

• #10

B11:0 is the word i´m sending to the ML1500 from the 5/05. If you need just a bit then modify any bit of that word with the bit you mentioned before "motor 1 on", then decide when you send that msg to the other plc. control word has to a different word from the rest.

 

TakiGRE

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• Dec 12, 2011

• #11

Widelto, and Junkerjorg I cant thank you enough for the quick feedback and help. I will get going on this and see how it works out. I hope I will be able to return the favor sometime in the future.

 

widelto

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• Dec 12, 2011

• #12

you mentioned just a single bit, now if you want to send 24 words is up to you, but if you do not need to send 24 words just change the number to 1 and that´s all. Modify that word as i explained before.

 

junkerjorg

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• Dec 12, 2011

• #13

Yeah, I used a real world example that happened to be reading 24 words. Hope that didn't confuse you.

 

TakiGRE

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• Dec 12, 2011

• #14

Not a problem. Thanks for the clarification

 

TakiGRE

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• Dec 12, 2011

• #15

for some reason I do not have the mulithop function. i am using rslogix 500 version 7. would this be the problem possibly?