Pressure Measurement Module 4P4D4; Data Formats And Value Ranges For The Pressure Measurement Module 4P4D4 - Aventics AES Serie Systembeschreibung

AVENTICS | AES I/O Modules, Analog | R412018147–BAL–001–AG
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Structure of the I/O Module Data
6.3.9

Pressure measurement module 4P4D4

The pressure measurement modules have a permanently programmed parameterization that
cannot be changed.
6.3.10

Data formats and value ranges for the pressure measurement module 4P4D4

Table 65: Structure of the process data of the inputs for "8 bits data format, measurement range
0-10 bar/0-145 psi" (4P4D4)
Bit 7 Bit 6
D7 D6
D.. : Value of the bit (0/1)
The value of 145 psi is equal to a value of 10 bar. The maximum measurement range is limited
to 10.0 bar/145 psi by the pressure sensor in use.
Table 66: Value ranges of the process data of the inputs for "8 bits, measurement range 0-10 bar/0-145 psi"
(4P4D4)
Nominal value of the
Resolution
measurement range
0 to 10 bar 40 mbar/bit
0 to 145 psi 0.58 psi/bit
D.. : Value of the bit (0/1)
The decimal value 250 can be converted to the decimal value 1000 in the PLC by a 2x left shift.
(250 = 11111010 --> 1000 = 1111101000)
Bit 5 Bit 4 Bit 3
D5 D4 D3
Value
0.0 bar
0,04 bar
10.0 bar
> 10.0 bar
0.0 psi
0.58 psi
145.0 psi
> 145.0 psi
Bit 2 Bit 1 Bit 0
D2 D1 D0
Example
D0–D7 D0–D7
Decimal Hexadecimal
0 00
1 01
250 FA
250 FA
0 00
1 01
250 FA
250 FA