Festo MSE6-E2M, Руководство по эксплуатации

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Festo — MSE6-E2M — 2022-08d
Functions
25
5.2.2.4 Input word Em.2 pressure P2
In the input word Em.0, the pressure value P2 is displayed in accordance with the parameterised
pressure unit. The presetting of the module parameter “Unit pressure” is “mbar”.
Data format of input word sign + 15 bits, right-justified
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
VZ B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
MSB LSB
Abbreviations used
VZ Sign, for data format sign + 15 bit, always=0, positive value
B0 … B14 Pressure value P2
DO … D15 16-bit input data field
MSB/LSB Most significant bit/least significant bit
Tab. 8: Data format of input word Em.2 "Pressure P2"
Pressure P2 Input value
[bar] [kPa] [mbar] [psi/10]
0 0 0 0
1 100 1000 145
4 400 4000 580
… … … …
7.36 736 7360 1067
… … … …
14 1400 14000 2030
Tab. 9: Unit-dependent pressure values
The pressure measurement data is presented according to the unit and is rounded off.
Measured value resolution:
• kPa: 2
• mbar: 20
• psi/10: 5
5.2.2.5 Input word Em.5 pressure change DP2
The pressure change value is transmitted exclusively as a selectable input word, Em.5. The output
word, Am.1, input address must in this case have the value 0. The pressure change value is specified
in the data format sign + 15 bits.
Depending on the parameterised pressure unit and the parameterised measurement interval, the
pressure change is sent to the higher-order controller as the input word, 2 bytes, 16 bits. The pressure
change value is stored in the input word as follows.