Calibration Mode; Multi-Parameter Addressing - BRONKHORST FLEXI-FLOW Compact Instruction Manual

· Default value: 0
If Control mode is changed to value 9 or 18, the instrument returns to the default value at the next power-up or reset. Other
·
values are persistent.
· Control mode 18 prevents the instrument from assuming its
failure.
· The column labeled List option shows the control modes as used in Bronkhorst® software (which explains the RS-232
references, although the FLEXI-FLOW has no such interface).

Calibration Mode

Type
Unsigned char
After enabling calibration mode by means of parameter Control Mode, this parameter is used to start the autozero function of
the flow sensor. The following modes are supported:
Value Description
0 Idle (no action)
9 Start zeroing
255 Error (result of previous calibration mode)
4.4

Multi-parameter addressing

This section lists all parameters that are available on all
Modbus addresses. Categories are consistent with section
parameter descriptions.
General address derivation using offset
In a Modbus system, parameters of communication channels P1 and P2 can be accessed by applying an offset to the Modbus
PDU address of the parameter on channel F:
· For address range 0x0000...0x0FFF, add 0x20 to the Modbus PDU address for channel P1, or 0x40 for channel P2.
For address range 0x8000...0xFFFF, add 0x100 to the Modbus PDU address for channel P1, or 0x200 for channel P2.
·
On FLOW-BUS, parameters of communication channels P1 and P2 can be accessed by applying an offset to the process number
of the parameter on channel F:
· Add 1 to the process number for channel P1.
· Add 2 to the process number for channel P2.
Measurement and control
ProPar
Measure (8)
Setpoint (9)
Setpoint Slope (10)
Temperature (142)
Fmeasure (205)
Fsetpoint (206)
Controller Speed (254)
9.17.158G
Access Range
B
RW 0, 9, 255
Channel F
(flow)
ProPar
1/0
1/1
1/2
33/7
33/0
33/3
114/30
Instruction Manual FLEXI-FLOW™ Compact
Bronkhorst®
default/safe state
FlowDDE ProPar
58 1/4
3 communication channels
Parameters . See the according subsections for detailed
28
Channel P1
(upstream pressure)
Modbus ProPar
0x0020 2/0
0x0021 2/1
0x0022 2/2
0xA138 34/7
0xA100 34/0
0xA118 34/3
0xF2F0... 115/30
0xF2F1
in the event of a digital communication
24
Modbus
0x0E61/3682
(F, P1, P2), including their FLOW-BUS and
21
Channel P2
(downstream pressure)
Modbus ProPar
0x0040 3/0
0x0041 3/1
0x0042 3/2
0xA238 35/7
0xA200 35/0
0xA218 35/3
0xF3F0... 116/30
0xF3F1
Modbus
0x0060
0x0061
0x0062
0xA338
0xA300
0xA318
0xF4F0...
0xF4F1
47