Effect of delay jitter on quality of control in EIA-952-based networks

Converged IP Network for Hydrocarbon Process Automation

“…Soucek, Sauter, and Koller [5], concluded that delay, jitter, and packet loss impacts the process automation traffic and control loop directly. The authors were able to provide means such as activating Quality of Service (QoS) to alleviate the impacts of delay.…”

“…Soucek, Sauter, and Koller (2003) [5] theorized , network based control system is no longer only where controller is governing the network design; rather the controller design itself has to be robust to handle possible network deficiencies. While this approach provides a robust and resilient system implementation, optimizing the controller attributes (message types, mix, and arrival rate) could mitigate the need to invest in the controller design robustness and relay on the network to compensate for controllers' limitations.…”

“…Figure 3. Application Request/Response Time As discussed by Soucek et al (2003) [5], controller needs to be robust to handle possible network deficiencies. This approach requires optimizing the controller attributes (message types, mix, and arrival rate) and is expecting network to compensate for controllers' limitations.…”

“…The following table depicts the different general process automation types and acceptable time delay requirements based on industrial survey as described in Hoga & Wong ( [10] and Soucek, Sauter, & Koller (2003) [5] that will be considered as part of the initial simulation. …”

“…Soucek, Sauter, and Koller [5], theorized network based control system behavior as it is no longer only where controller is governing the network design; rather the controller design itself has to be robust to handle possible network deficiencies. Brooks [6], among others, discussed several Ethernet protocols for process control; where most require alteration to the IEEE 802.3 layer 2 and or IP layers.…”