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BRONKHORST®

Page 14 Operational instructions for digital multibus instruments 9.17.023

Document “917027--Manual RS232 interface” explains in more detail the use of RS232 communication

This document can be found at:

http://www.bronkhorst.com/en/downloads/instruction_manuals/

Example of a parameter and the explanation:

Data Type

Range

read/write

Secured

DDE

Proc/par

Valve output

unsigned long

0…16777215



114

unsigned long = one of the data types below.

Unsigned char

1 byte integer

Unsigned int

2 bytes integer, MSB first

Unsigned long

4 bytes integer, MSB first

Float

4 bytes IEEE 32-bit single precision numbers, MSB first

Unsigned char []

array of characters (string)

RW = R - parameter can be read, W – parameter can be written.

Secured =  Y =Parameter is secured. N= Parameter not secured.

0…16777215 = Parameter range.

DDEpar. = 55 = FlowDDE parameter number

Proc. = 114 = Process number

Par. = 1 = process parameter number

Another example is:

Data Type

Range

read/write

Secured

DDE

Proc/par

Fluid name

unsigned char[10]

a…Z, 0…9



unsigned char[10] = Data type Unsigned char[], array of characters. [10] = number of characters.

RW = R - parameter can be read, W – parameter can be written.

Secured =  Y =Parameter is secured. N= Parameter not secured.

a...Z = characters which can be used in the string

0...9 = numbers which can be used in the string

DDEpar. = 25 = FlowDDE parameter number

Proc. = 1 = Process number

Par. = 17 = process parameter number

secured parameter:

To enable secured parameter, see chapter 9 SPECIAL PARAMETERS 9.2 INIT/RESET.

More information can be found in the manual “917030 Manual FlowPlot”

This document can be found at:

http://www.bronkhorst.com/en/downloads/instruction_manuals/

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