Pulsar MICROFLOW, Инструкция по эксплуатации

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Parameter Access
All of the MicroFlow sensor parameters have factory default values which the
user receives upon first use, or when the sensor is reset. The parameters consist
of two main types: Output parameters and Configuration parameters.
Output parameters are read only and cannot be set by the user. Examples are the
stability and signal strength. Configuration parameters can be queried and set,
there is also an associated access level required for setting, either ‘User’ or
‘Service’. Upon connection to a sensor, the access level is defaulted to ‘User’.
The parameters are always stored and entered as whole numbers, please refer to
the individual parameter for its individual value range.
The naming syntax for the parameters is with a prefix of ‘P’ before the address.
For example, a parameter at address 102 is “P102”. The value/content of the
parameter is delimited by a colon “:”, such that “P102:20” indicates that the
parameter at address 102 has a value of 20.
The terms “parameter” and “register” are used interchangeably as the parameter
number is the actual address of the storage register.
The parameters on the MicroFlow can be accessed using either:
•
The parameters tab on MicroFlow PC .
•
Modbus RTU communication protocol (RS485).
It is recommended that only one method of access is used at any point in time.
Output parameters
Using a Modbus Master, output parameters can be polled using Read Input
Registers. For example: to view the flow velocity, you would read register
(parameter) addresses 30020 and 30021.
Flow Velocity P20 and P21
The current flow velocity can be read from registers 20 and 21, in the following
format:
P20 contains the whole number part of the flow reading, while P21 contains the
fractional part of the flow reading. P21 is stored as a whole number from 0 – 999
(allowing a fractional representation of 0.001 to 0.999).
8.76
Register [20] = 8 Register [21] = 760