TR-Electronic CEV-65 - Connection Type; Connection Types

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06/27/2017 TR - ECE - BA - DGB - 0073 - 07 Page 141 of 155
8 Connection type
The connection type defines the mode of connection between control system
(Originator) and the measuring system (Target).
In this case, the data stream is distinguished:
● O -> T: Data packets from Originator to Target
● T -> O: Data packets from Target to Originator
The measuring system supports the following connection types:
1. Exclusive Owner
Exclusive Owner specifies an independent connection where a single device
controls the output states in the target device. If already an Exclusive Owner
connection to a target device is present, it is not possible to specify another
Exclusive Owner connection to that same target device.
2. Input Only
Input Only specifies an independent connection where a device receives inputs
from the target device and sends configuration data to the network. An Input
Only connection does not send outputs; it only receives inputs. It is possible to
specify multiple Input Only connections to the target device from different
originators.
3. Listen Only
Listen Only specifies a dependent connection where a device receives inputs
from the target device, but does not send configuration data with the network. A
Listen Only connection only functions properly when another NON-Listen
Only connection exists to the same target device. A Listen Only connection
does not send outputs; it only receives inputs. It is possible to specify multiple
Listen Only connections to the target device from different originators.
O -> T
Connection Point [dec.]
Size [Byte]
Description
100
0
Exclusive Owner
254
0
Input Only
255
0
Listen Only
T -> O
Connection Point [dez.]
Size [Byte]
Description
1
4
Position data, 32 bit
100
0
Heartbeat
101
8
Position data, 64 bit