Host Engineering Forum
General Category => EBCs and EBC100s => Topic started by: Controls Guy on July 14, 2014, 08:56:28 PM
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Both the onboard Ethernet port on a Do-More and EBC's support both Modbus/TCP and ERM/EBC mode.
Since ERM/EBC mode allows native-mode addressing and doesn't require any ladder logic for interlocking, etc., I assume that's the preferred mode for 205, 405, and Terminator remote I/O?
If so, are there any limitations to that mode which would force you to use Modbus/TCP in specific scenarios as a workaround?
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The only issue is if you need to access an EBC, as opposed to EBC100. If not, the Do-more Ethernet master is far better in every way. Faster, easier, supports remote CTRIOs and drives natively. No contest.
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Hmm, this is for an existing site, with ERM/EBC's, that I'd be upgrading from a 260 to a D-M. Have to check if the EBC's are 100's or not. Budget might be there to replace them if not. Are you saying ERM mode on a DM won't talk to a non-100 EBC, or just that it doesn't perform as well?
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It isn't ERM mode. It's a new Ethernet expansion I/O that is fully native...it looks just like local I/O. It was not practical to retrofit non-100s with the new function. If you already have an ERM and EBCs Do-more can use them, just not in the native mode.
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OK, I understand. Thanks!