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Operation METPOINT® BDL compact
Important:
Here, the correct
register address
It must be observed that the register number may differ from the register address (offset).
Please refer to the sensor/transducer data sheet for this purpose.
Main menu Settings Sensor settings A1 Reg. format text field
Supported data types:
Data Type:
UI1(8b) = unsigned integer
I1 (8b) = signed integer
UI2 (16b) = unsigned integer
I2 (16b) = signed integer
UI4 (32b) = unsigned integer
I4 (32b) = signed integer
R4 (32b) = floating point number
Byte Order:
The size of a Modbus register is 2 bytes. For a 32 bit value, two Modbus registers are read out by the
BDL compact. Correspondingly, only one register is read out for a 16 bit value.
The Modbus specification only insufficiently defines the byte order with which the values are transmit-
ted. In order to cover all of the possible cases, the byte order is freely adjustable in the BDL compact,
and must be adapted to the order of the respective sensor (see sensor/transducer data sheet).
Example: high byte before low byte, high word before low word etc.
Therefore, settings must be defined in accordance with the sensor/transducer data sheet.
Examples:
METPOINT® BDL compact
The sensor provides the measured values
in registers. The values can be located and
read out by the BDL compact via Modbus.
For this purpose, the desired register ad-
dresses need to be set in the BDL compact.
The entry of the
plemented in decimal values from 0 to
65535.
is required.
By means of the
register
ister type is selected.
With the
ber format and the order of transmission of
the individual number bytes is determined.
These must be used in combination.
=>
=>
=>
=>
=>
=>
-2147483648 -
register/data address
input register
buttons, the respective Modbus reg-
data type
and
byte
order, the num-
0
-
255
-128
-
127
0
-
65535
-32768
-
32767
0 -
4294967295
2147483647
is im-
and
holding
55
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