Micro820

Ignition
41

Yes its works fine thanks for your help

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@Kevin.Herron
Is there any update regarding ** EIP driver for the 820/850 Micros ** ?
I really would like to avoid doing modbus mapping with micro820.

2 Likes
43

Sorry nothing has changed. Still going to do it eventually, still lower priority than other projects.

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@Kevin.Herron
Well, maybe this will help. Can’t map a string to the Modbus setup in the Micro820 so there would be functionality gained by developing a driver.

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I might beat Kevin to it. (:

2 Likes
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For some odd reason modbus doesn’t like my facility, so i communicate to a controllogix and from there to ignition.

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Any update for the Micro820 driver?

1 Like
48

As far as I know , no. Modbus comms is still the preferred way .

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I keep looking for updates on this as well. Granted, I don’t know how Ethernet/IP is implemented in the native Ignition drivers, but when looking at the pylogix code, there doesn’t seem to be much of a difference besides not allowing bulk reads/writes, a different comm path, and how strings are handled.

If this is all that’s required, I would think this would be something IA can easily add to the existing driver to add compatibility quickly.

1 Like
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@michael.flagler I agree with you that the communication cannot be much different. As for the compatibility with the native A-B drivers, I did manage to get a “connected” status when trying to apply the Logix driver to it but got bad values on the tags.

Setting up peer-to-peer networks over EIP with the Micro820/850/870, CompactLogix, and ControlLogix is pretty painless and the messaging is set up the same basic way in all of the above.

Another situation that raises the question of compatibility is that A-B has the proper controller type as “Logix” when setting up the DF1 rslinx driver to connect through the Micro820 serial port.

I did get the Modbus TCP driver working just fine but there would certainly be advantages to an ethernet driver and the demand seems to be there for it.

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Stumbled upon this, obviously late to the game. You're right, there weren't many changes to support Micro8xx controllers. The path changed slightly, strings are handled different and there are a few CIP objects that they don't support. The Micro8xx support unsigned types, which Rockwell didn't add to the Logix platform until recently (certain controllers and firmware revisions).

I was reluctant to support it at first because I don't personally use them, so I didn't want to sign up for something I couldn't support. My Rockwell rep gifted me one, so I decided to add support.

I can appreciate that Kevin might be in a similar boat: Do I really want to take this on, considering everything else that needs to be done?

1 Like
52

It's supported in my expanded EtherNet/IP module. Still in pre-alpha testing, but not for much longer.

3 Likes
53

Now in public beta with MicroLogix 820, 850, and 870 support:

4 Likes