Milltronics CVCC Instrukcja Obsługi Pobierz pdf (Strona 23)

MULTIPLE BIC-II’s - EXAMPLE

A communication network is to be established which will require a PLC to communicate with 2

AiRanger IV’s set to 9600 baud and 4 AiRanger DPL’s with software revision number 2.3 EPROM’s. The

AiRanger IV’s are located at opposite ends of the plant, and the AiRanger DPL’s are distributed in between.

The PLC will be located in the control room 400 m away. The BIC-II Host/Millbus communications is to be at

9600 baud.

The product load factor equals 30 for each AiRanger IV at 9600 baud, and 10 for each AiRanger DPL,

therefore the products must be divided between two BIC-II’s. A third BIC-II (located within 15 m of the PLC)

will be required to communicate with the other BIC-II’s.

Connect the bipolar current loop terminals of one AiRanger IV and two of the AiRanger DPL’s to PORT1,

PORT2 and PORT3 of BIC- II I.D. # 1. Connect the bipolar current loop terminals of the other AiRanger IV

and AiRanger DPL’s to BIC-II, I.D. # 2.

Interconnect the MillBus terminals of the two BIC-II’s to a third BIC-II mounted as close as possible to the

PLC, ensuring the combined length of all MillBus cables does not exceed 1200 m. Connect the RS-232

communication terminals of the third BIC-II to the PLC.

AiRanger DPL

maximum run 15 m

separation 400 m

AiRanger IV

BIC-II #1

BIC-II #3

PLC

Set up the PLC in accordance to the manufacturer’s instructions. Refer to Appendices/PCL Requirements.

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BIC-II #2

PL-371 6 – 3

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Milltronics CVCC Instrukcja Obsługi Strona 23