OFS Server Configuration
- Last UpdatedAug 04, 2025
- 1 minute read
The values provided in this section are recommended default values for SCADA usage. They can be adapted depending on project needs.
OFS version
Use the latest version of OFS that is available. This information targets OFS V3.35, or greater.
Processor affinity
In multi-processor machines, set the processor affinity of the OFS server so that it does not run on the same processor as the Plant SCADA I/O Server.
Device Settings
These settings can be adjusted on a device-by-device basis (see Device Settings).
Communications settings
-
Sampling rate on reception
-
Minimum group update rate
-
QuickSetActive
-
Communication Overrun behavior
Summary of recommended OFS Configuration parameters
In summary, the recommended OFS parameter settings for optimal performance are as follows:
|
Parameter |
Recommended Setting |
|---|---|
|
Communication Overrun behavior |
Rate adapt |
|
MaxChannels |
Equipment dependent, set to the same as the MaxPending value calculated by OFS. |
|
MaxPending |
0 (Equipment dependent. OFS to calculate a value). |
|
Minimum group update rate |
Rate <= Fastest Group rate / 2, and Rate is the greatest common divisor of the group rates (provided this doesn’t violate the previous rule). |
|
OFS version |
3.35 or later |
|
Processor affinity |
Different to Plant SCADA I/O server |
|
QuickSetActive |
True |
|
Sampling rate on reception |
20ms |