Nizam

MrPLC Member
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About Nizam

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    Newbie

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  • Gender Male
  • Location Kuala Lumpur
  • Country Malaysia
  • Interests PLC, Distributed Control System, Emergency Shutdown System, Fire & Gas System, HART, Fieldbus, Field Instrument, Oil & Gas Industries
  1. Thanks Ken for the long explaination. This helps me a lot. I really appreciate it.
  2. AsForest, There will be no upgrade or expansion on this Micrologix. It will be used only for interface/ gateway between 4 PLCs and DCS
  3. Hi ken, How difficult to configure the ControlLogix with the "Map PLC/SLC Data"? Do i need to purchase additional software license in order to enable that function? I don't have a luxury budget to change to Control Logix. I only have budget for micrologix 1400 since this only used for the so called 'Gateway' between the 4 PLCs and DCS. How about Micrologix 1400 communication with SLC? It is possible to communicate using Ethernet/IP and to pull data from 3 SLC PLCs ?
  4. The Interface PLC will consolidate and gather the data probably 50 real data 32 bits from each PLC and send to DCS.
  5. I have 4 Allen Bradley PLCs which are 3 SLCs and 1 CLX This PLCs need to send data to Yokogawa Centum VP DCS. Instead of having and individual Modbus link to DCS, I'm planning to link all 4 PLCs by using Ethernet/IP and plan to buy 1 extra mini PLC which is Micrologix 1400 to become an interface PLC between the 4 PLCs and the DCS. Since the Micrologix 1400 has embedded with an Ethernet port (Ethernet/IP) and Rs485 port for Modbus RTU, the Micrologix 1400 interface PLC will communicate with DCS using Modbus RTU Protocol. Meaning to say, the 4 PLCS will send data to the Yokogawa DCS via interface PLC. The Interface PLC will become translator to translate from Ethernet/IP language to Modbus RTU language. My question to Expert: 1. Is this setup can works? 2. How to send data inter-PLC by using Ethernet /ip ? Is it just need to grab the tagname or there is an address for that? 3.Is Micrologix is capable to communicate with 4 PLCs using Ethernet/IP? Or just only 1 PLC? See the attached photo. Thanks. -Nizam-