Festo VTEM - Reading out System, Application and Tuning Parameters; Requirements; Sequence

Festo — VTEM — 2021-05f
Parameterisation
93
4.2 Reading out system, application and tuning parameters
The values of system, application and tuning parameters are read out using the transfer mode
(
è
3.5.4 Transfer mode).
4.2.1 Requirements
–
The Motion Terminal boot procedure is completed.
– There are no Motion Apps currently running on the valve in question (valve state ≠ "2" (running)).
4.2.2 Sequence
To read out values for system, application and tuning parameters, the following settings must be
selected in the transfer mode:
– Operating mode of the valve (valve mode): 63 (transfer mode active) (PDO byte 0, bits 5 … 0 =>
111111
2
)
– Channel (channel): 1 … 5 (ID of the parameter set from which a parameter value is to be read out)
(PDO byte 1, bits 4 … 0 => 00001
2
… 00101
2
)
–
Transfer control (transfer control): 2 (upload) (PDO byte 1, bits 7 … 5 => 010
2
)
– Addressing of data transfer (addressed target): 0 … 60 (PDO byte 2 => 0
10
… 60
10
)
– 0 for reading out system parameters (independent of Motion App)
–
1 … 59 for reading system, application or tuning parameters for the corresponding Motion App
–
60 for reading out parameters for the teach-in run (
è
3.7.1 Prerequisites for starting the teach-in
run)
– Index (index): ID of the parameter with the value that is to be read out (PDO byte 3 => 12
10
… 255
10
)
The "Value" section is ignored.
Example
The value of the application parameter "Travel time, advancing" (ID 121) for Motion App #07 in the
parameter set 4 is to be read out.
Example of reading out the application parameter "Travel time, advancing"
PDO byte 1 PDO byte 0
Command
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
0 1 0 0 0 1 0 0 ... ... 1 1 1 1 1 1
transfer control
= 2 (upload)
channel = 4 (parameter set 4) – valve mode = 63 (transfer mode)
PDO byte 3 PDO byte 2
Parameter
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
Bit
7
Bit
6
Bit
5
Bit
4
Bit
3
Bit
2
Bit
1
Bit
0
0 1 1 1 1 0 0 1 0 0 0 0 0 1 1 1
index = 121 (parameter ID 121) adressed target = 7 (Motion App #07)