Festo VTEM - Function Description; Required Sensors; System Parameters Used

Festo — VTEM — 2021-05f
Function
65
The Motion App ID must be transferred using the "operating mode of the valve (valve mode)" section
of the process data (bits 5 … 0 in byte 0 (PDO)) to run the Motion App on a valve (
è
3.5.3 Running a
Motion App).
3.6.1 Function description
The Motion App makes 9 directional control valve functions available for execution by the corre-
sponding valve. The directional control valve function makes it possible to assign the characteristics
of a conventional switching valve to a valve on the Motion Terminal. The integrated sensors enable
monitoring of the switching position and of the pressure at the air ports. If the pilot pressure or power
supply are interrupted, the valve reverts to its mechanical initial position (all channels are blocked).
The valve types listed can be allocated cyclically to the CPX terminal by means of the process data
(
è
Tab. 83 Valve type). In addition, the switching status of the particular valve type can be specified
cyclically using the process data of the CPX terminal.
3.6.2
Required sensors
The Motion App does not require any external sensors. The use of proximity sensors is optional. If
these are to be used in the return values of the Motion App (
è
3.6.6.1 Status of the Motion App (app
state)), the assignment of sensor inputs to the Motion App (to the valve) must be carried out via the
WebConfig interface or using the higher-order controller (
è
3.6.3 System parameters used).
3.6.3
System parameters used
ID System parameters Value range
70 Sensor input for end position sensing,
retracted
1)
(optional)
20 … 27 or 40 … 47 and 50 … 57 or 80 … 87
and 90 … 97
2)
71 Sensor input for end position sensing,
advanced
3)
(optional)
20 … 27 or 40 … 47 and 50 … 57 or 80 … 87
and 90 … 97
2)
1) (2) pressurised, (4) exhausted
2) regardless of the device version (position of input modules)
3) (4) pressurised, (2) exhausted
Tab. 79: System parameters
3.6.3.1
Sensor input for end position sensing, retracted((2) pressurised, (4) exhausted)
This parameter must only be used if proximity sensors are used and should be evaluated in the return
value (optional). The value for the parameter is calculated from the position of the input module (valve
slot), multiplied by a factor of 10 and then added to the number of the input on this input module
(0 … 7).