Bronkhorst IQ+FLOW (from 01-07-2013) Manual de usuario descargar pdf (Pagina 21)

Bronkhorst High-Tech B.V.

IQ+FLOW 21

9.17.045

4 Advanced operation

4.1 Reading and changing instrument parameters

4.1.1 Special parameters

All parameters described in this chapter have influence on the behaviour of the IQ

FLOW®. Please be aware that

wrong settings can disorder the output. To avoid unintential changes, some parameters are locked (shown by the

symbol). To unlock parameters set parameter 'Init Reset' to 'Unlocked'.

Init Reset

Type

Access

Range

FlowDDE

FLOW-BUS

Modbus

Unsigned char

82/64

0/10

0x000A/11

The 'Init Reset' parameter is used to unlock advanced parameters for writing. This parameter can be set to the following values:

Value

Mode

Instrument action

Locked

Advanced parameters are read-only

Unlocked

Advanced parameters are writeable and readable

This parameter is always set to 'Locked' at power-up.

Control Mode

Type

Access

Range

FlowDDE

FLOW-BUS

Modbus

Unsigned int

0…255

1/4

0x0024/37

The 'Control mode' is used to select different functions of the instrument. The following modes are available:

Value

Mode

Instrument action

Setpoint

source

Master

source

Slave

factor

BUS/RS232

Controlling

RS232/RS485

Analog input

Controlling

Analog input

FLOW-BUS slave

Controlling as slave of other instrument on bus

FLOW-BUS *

slave factor /

100%

FLOW-

BUS

Slave

factor

Valve close

Close valve

Controller idle

Stand-by on BUS/RS232, Controlling is stopped;

Valve Out freezes in current position

Testing mode

Test mode enabled (factory only)

Tuning mode

Tuning mode enabled (factory only)

Setpoint 100%

Controlling at setpoint 100%

Fixed 100%

Valve fully open

Valve fully opened

Calibration mode

Calibration mode enabled (factory only)

Analog slave

Controlling as slave of other instrument on

analog input

Analog input *

slave factor /

100%

Analog

input

Slave

factor

Setpoint 0%

Controlling at setpoint 0%

Fixed 0%

FLOW-BUS analog

slave

Controlling as slave of other instrument on bus,

slave factor is set with signal on analog input

FLOW-BUS *

analog input *

slave factor /

100%

FLOW-

BUS *

analog

input

Analog

input

RS232

Controlling

RS232

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 29 30

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Bronkhorst IQ+FLOW (from 01-07-2013) Manual de usuario Pagina 21

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