Festo — MSE6-C2M — 2022-08b
Functions
17
Monitoring of parameters
The unit flow rate, Pm.8.2-8.3, standard unit flow rate, Pm.8.6-8.7, and unit consumption, Pm.8.4-8.5,
parameters are checked on input for permitted values. In the event of an error, the corresponding error
message is output if parameterisation error monitoring is activated, Pm.0.7.
Unit
flow rate
Pm.8.2-8.3
Flow rate
standard
Pm.8.6-8.7
Unit
consumption
Pm.8.4-8.5
Consumption
V0
Run
Am.0.12
Monitoring
of
parameter
Pm.0.7
Data check
Scaling
Data check
Data check
Diagnostics, maskable
FN29, Em.0:
error in parameterisation
Inputs
Em.1: consumption V0 (16 Bit)
Em.3.12: status measurement consumption 0
Em.3.13: status measurement consumption 1
Consumption
Consumption
V0
Reset
Am.0.13
Consumption
V1
Run
Am.0.14
Consumption
V1
Reset
Am.0.15
Reset
consumption
V0
User-controlled
consumption measurement
V0 and V1
Run / Stop
consumption
V0
Run / Stop
consumption
V1
Reset
consumption
V1
Selectable inputs
Em.5-6: consumption V0 (16/ 32 bit)
consumption V1 (16/ 32 bit)
Diagnostics, maskable
FN29, Em.1:
error in parameterisation
Continuous
consumption measurement
VC
Consumption
measurement
impulse
Input:
Em.3.7: measurement impulse consumption VC
Electrical
output
VC
Sensor
error
flow
rate
sensor
Fig. 6: Block diagram of the consumption function
5.1.3
Pressure
Input signal
The output pressure P2 measured value is processed according to the unit pressure, Pm.8.0-8.1,
parameter and made available as an input signal pressure P2, Em.2.
Monitoring of lower pressure critical limit P2 and status indicator
A comparator is used to compare the measured pressure value with the parameter “Lower pressure
critical limit” P2. The result is indicated in two ways.
•
Status LED P2
–
The LED lights: output pressure P2
³
lower pressure limit value P2
–
The LED flashes: output pressure P2
<
lower pressure limit value P2 and
output pressure P2
³
auto standby pressure setpoint value - 0.05 MPa (- 0.5 bar; - 7.25 psi).
The condition is not applicable if:
The lower pressure limit value P2
<
auto standby pressure setpoint value - 0.05 MPa (- 0.5 bar;
- 7.25 psi).
–
The LED is off: output pressure P2
<
auto standby pressure setpoint value - 0.05 MPa (- 0.5 bar;
- 7.25 psi).
•
Input monitoring lower pressure limit value P2, Em.3.6
–
Logic 1: outlet pressure P2
<
lower critical limit pressure P2
–
Logic 0: outlet pressure P2
³
lower critical limit pressure P2
