BRONKHORST mini CORI-FLOW ML120, Instruction Manual

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Bronkhorst®
Instruction Manual mini CORI-FLOW ML120 9.17.097G 41
Wink
Type Access Range FlowDDE FLOW-BUS Modbus
Unsigned char [27] W 0…9 1 0/0 0x0000/1
Sending any text string value between 1 and 9 to this parameter makes the LED(s) on the instrument (if present) blink for
that number of seconds. This can be useful in order to identify a specific device in a large fieldbus network.
Control Mode
Type Access Range FlowDDE FLOW-BUS Modbus
Unsigned int RW 0…255 12 1/4 0x0024/37
Control Mode is used to select different control modes of the instrument and determines from which source(s) it accepts a
setpoint. The following control modes are available:
Value Mode Instrument action Setpoint source
0 BUS/RS232 Normal operation via fieldbus or RS232 Fieldbus or RS232
1 Analog Input Normal analog operation Analog input
2 FLOW-BUS Slave Acting as slave instrument on FLOW-BUS RS485 only: FLOW-BUS
master output x Slave
Factor/ 100%
3 Valve Close Controller disabled, valve closed
4 Controller Idle Controller disabled, valve frozen in current position
7 Setpoint 100% Setpoint fixed to 100%
8 Valve Fully Open Controller disabled, valve fully open
9 Calibration Mode Calibration mode enabled
(factory only)
10 Analog Slave Acting as slave of other instrument in analog mode Analog Input x Slave
Factor/ 00%
12 Setpoint 0% Setpoint fixed to 0%
13 FLOW-BUS
Analog Slave
Acting as slave of other instrument on FLOW-BUS, slave
factor is set by analog input signal
RS485 only: FLOW-BUS
master output x Analog Input
18 RS232 Normal operation via RS232 RS232
20 Valve Steering Controller disabled, setpoint redirected to Valve output
21 Analog Valve
Steering
Controller disabled, analog input redirected to Valve output
22 Valve Safe State Valve is in safe state (closed for N.C. valves, fully open for
N.O. valves)
Immediately after power-up, Control Mode is set to 'Analog input’ or ‘BUS/RS232’ automatically, depending on the requested
default setting for analog or digital operation. If Control mode is set to value 0, 1, 9 or 18, the instrument returns to its
default control mode at the next power-up or reset. Other values are retained after power-up or reset.
4.7.1 Default control mode
IO Status
Type Access Range FlowDDE FLOW-BUS Modbus
Unsigned char RW

0…255 86 114/11 0x0E4B/3660
The instrument is set to accept a setpoint from either an analog or a digital source. Although this setting can be changed
with parameter Control Mode , the instrument will always return to its default control mode at every power-up or reset. The
default control mode can be set with parameter IO Status ; to change it, use the procedures as described below.