CompactLogix L35e and Micro 820/850 - PLCS.net

Oliver Micka · December 10th, 2020, 10:59 AM

Hi all.
I need litle help.
I need connected Micro 850 ( 2080-LC50-24QWB) to a Main PLC (CompactLogix L35e) and send/recieve data throught Ethernet.
I have a several informtion : How make it.
In my CPU i have MSG instructions for read and write data with Micro850.

I tried change my old processor to a new processor only for test ( same type L35e ), but situation is the same.

But If i change processor to a "newer"L33ERM or L36ERM, everything seems OK. Comm between Micro850 and L33/36ERM was excelent and fast.

I used a same settings MSG instructions.
But L35e - still error " connection failure" in the RsLogix

Does anybody know, why CLX L35e cant send/recieve data throught ethernet with Micro 800 series?
Info:
CPU FW: 20.19

geniusintraining · December 10th, 2020, 11:12 AM

Just a guess but what series is the L35e? if its a series A that may have been the improvements made to a series B but I am not sure

Ken Roach · December 10th, 2020, 01:33 PM

There is a detailed RA Knowledgebase document that you have probably already read that describes configuration of MSG instructions in a Logix-family controller to target a Micro 800 series controller.

https://rockwellautomation.custhelp....ew/a_id/520228

Examine the selection for "connected" message on the Communications Path tab. I believe that it must be "unconnected" for older CompactLogix.

Oliver Micka · December 11th, 2020, 02:09 AM

Quote:

Originally Posted by Ken Roach

There is a detailed RA Knowledgebase document that you have probably already read that describes configuration of MSG instructions in a Logix-family controller to target a Micro 800 series controller.

https://rockwellautomation.custhelp....ew/a_id/520228

Examine the selection for "connected" message on the Communications Path tab. I believe that it must be "unconnected" for older CompactLogix.

I have tested MSG config for L33/L36, i believe that is the same config for all Logix CPU family. That is why i used the same config for proccessor L35e.
Nothing.
I tried use many address for a Path.
The standard Ethernet address for Logix CPU´s is " 2 " - for example: 2, 192.168.0.1.

If i change address to any number ( from 0 to 7 -I know, it is a nonsens, but i tried everything ) - nothing gonna happen - i have still communication error.

BShifty · May 3rd, 2021, 02:00 AM

Try 1, 1, 2, 192.168.0.1 or LocalENB, 2, 192.168.0.1

eromero425 · May 25th, 2023, 01:16 PM

I'm also experiencing this issue, did you have any luck resolving it?

December 10th, 2020, 10:59 AM	#1
Oliver Micka Member Join Date: Oct 2015 Location: Hlohovec Posts: 65	CompactLogix L35e and Micro 820/850 Hi all. I need litle help. I need connected Micro 850 ( 2080-LC50-24QWB) to a Main PLC (CompactLogix L35e) and send/recieve data throught Ethernet. I have a several informtion : How make it. In my CPU i have MSG instructions for read and write data with Micro850. I tried change my old processor to a new processor only for test ( same type L35e ), but situation is the same. But If i change processor to a "newer"L33ERM or L36ERM, everything seems OK. Comm between Micro850 and L33/36ERM was excelent and fast. I used a same settings MSG instructions. But L35e - still error " connection failure" in the RsLogix Does anybody know, why CLX L35e cant send/recieve data throught ethernet with Micro 800 series? Info: CPU FW: 20.19

December 10th, 2020, 11:12 AM	#2
geniusintraining Lifetime Supporting Member + Moderator Join Date: Jun 2005 Location: SC Posts: 8,106	Just a guess but what series is the L35e? if its a series A that may have been the improvements made to a series B but I am not sure __________________ www.PLCCable.com PLC Communication Cables, PLC Trainers, MicroLogix, ControlLogix, Siemens, Allen Bradley and more...OEM and aftermarket supplies... Aftermarket 1784-U2DHP Allen Bradley USB to DH+, new USB to 485 modbus

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December 10th, 2020, 01:33 PM	#3
Ken Roach Lifetime Supporting Member + Moderator Join Date: Apr 2002 Location: Seattle, WA Posts: 17,104	There is a detailed RA Knowledgebase document that you have probably already read that describes configuration of MSG instructions in a Logix-family controller to target a Micro 800 series controller. https://rockwellautomation.custhelp....ew/a_id/520228 Examine the selection for "connected" message on the Communications Path tab. I believe that it must be "unconnected" for older CompactLogix.

May 3rd, 2021, 02:00 AM	#5
BShifty Member Join Date: Sep 2014 Location: Melbourne Posts: 1	Try 1, 1, 2, 192.168.0.1 or LocalENB, 2, 192.168.0.1

May 25th, 2023, 01:16 PM	#6
eromero425 Member Join Date: Jun 2017 Location: El Paso, TX Posts: 1	I'm also experiencing this issue, did you have any luck resolving it?

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