Bronkhorst®
Instruction Manual mini CORI-FLOW ML120
9.17.097G
32
4.1
General
This section contains information on the most commonly used parameters for operating the mini CORI-FLOW. Descriptions
are grouped by category in tables as shown below:
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
[type]
RW
[x]…[y]
[DDE par]
[Pro]/[Par]
[address]/[register]
In this manual, parameter names are printed in italics (reverted to
normal
where embedded in italics, like in this tip).
Type
Unsigned char
1 byte unsigned integer (0…255)
Unsigned int
2 byte unsigned integer, MSB first (0…65535)
Unsigned long
4 byte unsigned integer, MSB first (0…4294967295)
Float
4 byte floating point, IEEE 32-bit single precision, MSB first
Unsigned char [x] x byte array (text string)
Access
R
The parameter is read-only
RW
The parameter can be read and written to
RW
The parameter is protected and can only be written to when
Init Reset
is set to value 'unlocked' first
Range
Some parameters only accept values within a certain range:
[x]
Minimum value of the range
[y]
Maximum value of the range
FlowDDE
Parameter number within FlowDDE
FLOW-BUS
Within the FLOW-BUS protocol (ProPar when using RS232), parameters are identified by a unique combination of a process
number and a parameter number:
[Pro]
Process number
[Par]
Parameter number
Consult
Instruction manual RS232 interface
(document no. 9.17.027) for detailed information.
This document can be downloaded from
http://www.bronkhorst.com/en/downloads
Modbus
In the Modbus protocol, parameters are accessed by specifying their unique decimal register number or corresponding PDU
address (Protocol Data Unit). The PDU address is the hexadecimal translation of the register number minus 1, e.g. register
number 1 corresponds to PDU address 0x0000, register number 11 corresponds to PDU address 0x000A:
[address]
Hexadecimal PDU address
[register]
Decimal register number
Modbus address blocks are two bytes big. Larger data types use up to 8 subsequent address blocks, resulting in a
maximum variable length of 16 bytes. Values longer than the maximum length are truncated.
Other interface protocols
Consult the specific fieldbus manual for accessing parameters via fieldbus communication (see
).
4.2
Device identification
User Tag
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char[16]
RW
-
115
113/6
0xF130…0xF137/ 61745…61752
With this parameter, the instrument can be given a custom tag name, with a maximum of 16 characters.