SCL505 to PLC5 ethernet communication

M

Thread Starter

mmuretich

Can I connect a PLC5 to a SLC 505 using ethernet? I need to exchange information between the two PLCs. What instructions do I use for communication between the two?

Thanks
 
B

Bob Peterson

yes. they both have to be ethernet versions of the CPU, or have an external ethernet adaptor of some sort. the MSG instruction would be used.
 
ummm unless i missed a memo, its pretty straighforward. Just connect the processors to each other (through a switch/hub or with a crossover cable) and use a MSG instruction. I dont have access t the PLC5 software right now, but in RSLogix500, there is a PLC5 option under the target device setting on the MSG blocks. The only way it gets any simpler is if you get someone else to do it for you.

-jeff
 
J

Jeremy Pollard

You can use a cross over cable and use the MSG instructions - check out the help file for both regarding syntax.


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S

ScienceOfficer

mmuretich---

This is pretty easy if you are using fixed IP addresses. Copy and paste
the following as a rung in RSLogix500 software:

MSG WRITE PLC5 LOCAL N7:0 1 10.255.10.255 N7:0 N7:0 1 5 0

...and explore the resulting Message instruction. Obviously, your IP address, data file locations, and data word length will be different.

Hope this helps!

Larry Lawver
Rexel / Central Florida
 
Yes you can. Using the MSG (message) Instruction. For futher information read the PLC5 Instruction set Help under the help tab of your PLC5 English software.
 
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