Bronkhorst Multibus Manual do Utilizador descarregar pdf (Página 33)

BRONKHORST®

Page 33 Operational instructions for digital multibus instruments 9.17.023

7.9 C

OUNTER CONTROLLER

OVERRUN CORRECTION

float

0…3.40282E+38

274

104/10

CORI-FLOW instruments only.

7.10 C

OUNTER CONTROLLER GAIN

float

0…3.40282E+38

275

104/11

CORI-FLOW instruments only.

7.11 USING A COUNTER (EXAMPLE)

Using the counter will take three steps:

1. Preparing the instrument (setting correct values for mode, limit etc.)

2. Monitoring the alarm info byte (gives info which alarm has occurred)

3. Resetting the counter (will re-initialize the counter and set output to normal values again)

7.11.1 Using a batch counter

The measured signal will be integrated in time and there will be a check on a certain limit set by the user.

Example

Send following parameter values:

Action

Parameter

Value

The batch is reached at 1000 ln.

send to

Counter limit

1000.0

New setpoint when reaching the limit to 0%

(valve should be closed).

send to

Counter setpoint mode

send to

Counter new setpoint

Reset should be enabled via BUS/RS232 or by

means of keyboard/micro-switch.

send to

Reset counter enable *

Set counter to batch counter.

send to

Counter mode

*) Default all reset inputs are enabled, so this command isn’t really necessary

Now the counter will be active.

Alarm / Counter status can be monitored by means of parameter alarm info.

Resetting the counter will need the following command reset = 0 and then reset = 3.

To inactivate the counter, put it in counter mode “off”. This will also reset your outputs.

This can be done sending command: counter mode = 0.

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