Festo VTEM - Page 42

42
Festo — VTEM — 2021-05f
Function
3.5.3.5 Feedback in the case of invalid output data
If incorrect or – in the present status – invalid output data is transferred from the higher-order con-
troller to the Motion Terminal controller during start-up of a Motion App, the Motion App is prevented
from starting. If there is invalid output data during operation of a Motion App, this is stopped. In both
cases, corresponding feedback is sent on the status of the Motion App (app state) to the input data:
– Operating mode of the valve (valve mode): 61 (Motion App stopped) (PDI byte 0, bits 5 … 0 =>
111101
2
)
–
Status of the valve (valve state): ready (configurable) (PDI byte 0, bits 7 … 6 => 01
2
)
–
Status of the Motion App (app state):
è
Tab. 51 Information on invalid output data
–
Actual value 1 (actual value 1): (PDI byte 3 … 2 => current pressure [mbar] at port (2))
– Actual value 2 (actual value 2): (PDI byte 5 … 4 => current pressure [mbar] at port (4))
PDI byte 5 4 3 2 1 0
Area Actual value
2
Actual value
1
Status
Bits 15 … 0 15 … 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
Function actual value
2
actual value
1
app state valve
state
valve mode
Value Current
pressure
Current
pressure
è
Tab. 51 Information on
invalid output data
0 1 1 1 1 1 0 1
Tab. 50
Meaning of PDI byte 1
Value dec. App state Meaning
1 valve mode invalid Invalid value in section "valve mode"
2 app control invalid Invalid value in section "app control"
3 app option invalid Invalid value in section "app option"
4 setpoint1 invalid Invalid value in “setpoint value 1” section
5 setpoint2 invalid Invalid value in “setpoint value 2” section
6 parameters invalid Incorrect parameterisation
(more precise information
è
3.8.3 Diagnostics
channel in transfer mode)
10 Access denied (WebConfig access) Access by PLC denied owing to active access by
WebConfig interface.
11 blocked due to saving Access blocked due to active save process.
12 no license for this app No licence available for the requested Motion
App.
13 all licences in use No free licence available for the requested
Motion App.