Festo MSE6-E2M Original Instructions Manual page 66

6 Input/output data
Pressure P2
[bar]
0
1
4
...
7.36
...
14
Tab. 6.7 Unit-dependent pressure values
The pressure measurement data is presented according to the unit and is rounded off.
Measured value resolution:
– mbar:
– kPa:
– psi/10:
The meaning of the module parameter "Upper limit pressure" is dependent on the mod­
ule parameter "Unit Pressure". When the module parameter "Unit Pressure" is changed,
the value of the module parameter "Upper limit pressure" remains unchanged and is not
adjusted automatically.
Input word Em.5 "Pressure change"
The pressure change value is solely transmitted as a selectable input word Em.5. For this, the output
word Am.1 "Input address" must have the value 0. The pressure change value is specified in the data
format "Sign + 15 bits".
The input word is shown in Motorola format (MSB-LSB).
Depending on the parameterised pressure unit and the parameterised measurement interval, the pres­
sure change is transferred 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.
Data format of input word, "Sign + 15 bits, right-justified"
D15 D14 D13 D12 D11 D10 D9
Sign B14 B13 B12 B11 B10 B9
MSB
Abbreviations used
Sign: Sign
B0 ... B14: Pressure change value
D0 ... D15 16 bit input data field
MSB/LSB Most significant bit/least significant bit
Tab. 6.8 Data format of input word, "Sign + 15 bits, right-justified"
66
Input value
[mbar]
0
1000
4000
...
7360
...
14000
20
2
5
D8
B8
[kPa]
0
100
400
...
736
...
1400
D7 D6 D5 D4
B7 B6 B5 B4
Festo – MSE6-E2M-SY-EN – 1703d – English
[psi/10]
0
145
580
...
1067
...
2030
D3 D2 D1 D0
B3 B2 B1 B0
LSB