Milltronics CVCC Instrukcja Obsługi Pobierz pdf (Strona 25)

BIC PROTOCOL

This is the protocol utilized when a BIC-II is operating in the BIC mode, as an interface between a host device

and a Milltronics product utilizing simplex convention.

The BIC mode is intended for use when a BIC-II is replacing a previous generation BIC in an existing

installation. For new installations, use the BIC-II or Modbus operating modes (FUNCTIONAL \ Operating

Modes) and refer to the corresponding protocol section of this instruction manual.

When replacing an existing BIC...

1. Set the Host/Millbus baud rate to match the Milltronics product baud rate. (Refer to START UP).

2. Set the Self Test to "NRM", (SW1 contact 8 closed).

3. Set the BIC-II I.D. # as desired, (range = 01 to 08, refer to START UP).

4. Select the BIC operating mode. (SW2 contacts 6 and 8 open).

5. Ensure the Milltronics product is connected to BIC-II product port 1.

6. Review the BIC vs. BIC-II BIC mode compatibility exceptions. (Refer to FUNCTIONAL/BIC MODE).

The BIC-II Millbus port must not be connected to a BIC daisy chain connection.

SIMPLEX CONVENTION

Simplex convention refers to the unsolicited transmission of messages from the Milltronics product to the

BIC-II. The following Milltronics products, utilize simplex convention:

AiRanger IV

AiRanger DPL

LiquidRanger

AiRanger XPL

As messages are transmitted from the product connected to the BIC-II product port, the BIC-II stores the

product data in the RAM Table. The RAM Table holds the product message data for each product point. This

data may be retrieved directly from the RAM Table or indirectly via the FIFO Buffer.

Each message between the host and BIC II consists of a continuous ASCII character string. Each ASCII

character is represented by a binary code consisting of 7 data bits, even parity, and 1 stop bit.

Product Message

Response

BIC II Message

Request

Product

Message

Air IV & LiquidRanger

Used to send an instruction to the product. No response retrieved.

Used to retrieve a product message stored in the BIC II.

Product Message

(unsolicited)

PL-371 7 – 1

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 75 76

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Milltronics CVCC Instrukcja Obsługi Strona 25