Host Engineering Forum
General Category => EBCs and EBC100s => Topic started by: franji1 on June 06, 2018, 11:13:34 AM
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New BRX Remote I/O Controllers: BX-DMIO (http://www.automationdirect.com/pn/doc/spec/BX-DMIO-M), BX-EBC100 (http://www.automationdirect.com/pn/doc/spec/BX-EBC100-M), and BX-MBIO (http://www.automationdirect.com/pn/doc/spec/BX-MBIO-M) for providing BRX I/O in Do-more, DirectLOGIC, and Modbus/TCP/RTU control systems.
Each can support up to 8 BX I/O modules, so with the new 32 point BX I/O modules, each I/O base can support up to 256 I/O points. One PLC can master up 16 of these remote bases, so one PLC can add an another 4096 BRX I/O points to its local I/O. Modbus-based applications can utilize even more BRX I/O.
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Thanks, guys! Perfect timing -- may be needing one of these in the next few weeks.
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At my previous job these would have been really welcome. But we are thinking that we are better off with CPUs in each of our skids. That way we develop independent code for skid and our base product skid does not carry a a large load of code not required on most jobs. Most of the time the communications between skids is pretty minimal too. Great to see these devices being available though.
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Yeah, distributed control is nice when the equipment will work well that way. Plus you could do a hybrid if you want, where the local CPU just acts as an I/O adapter running centralized logic when there is some, but if no comms, then run local logic.
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At my previous job we built larger systems with at least 5 equipment skids. Remote I/O worked really well there. The difference here is we squeezed an entire waste water treatment plant on to one skid. We really like the Do-More as virtually all of our competition uses AB. The AB guy told they have 80% of the market. I responded "Those poor bastards!" He wasn't too friendly after that.