For the last couple of years
we have seen the changing supervisory solutions emerging, that will require a rethink
of the underlying systems, and how they implemented and the traditional HMI,
Control architectures will not satisfy! Certainly in upstream Oil and
Gas, Power, Mining, Water and Smart Cities we have seen a significant growth in
the Integrated Operational Center (IOC) concept. Where multiple sites control comes back into one room, where planning and
operations can collaborate in real-time. Initially companies just virtualize
their existing systems back, and then
they standardize the experience for operational alignment and effectiveness,
and then they simulation, and model, not many have got to this last step.
But in the last couple of
weeks I have sat in discussions where people talk about this central IOC, which
is key. When you start peeling back the “day in the life of operations” the IOC
is only the “quarterback” in a flexible operational team of different roles,
contributing different levels of operational. Combined with dynamic operational
landscape, where the operational span of control of operational assets, is
dynamically changing all the time. The question is what does the system look
like, do the traditional approaches apply?
When you look at the
operational landscape below, you can see 100s of operational control points
where humans will have to interact with the system, with different spans of
control, and operational points will be manned and unmanned on regular basis.
Traditionally companies have used isolated (siloed) HMI, DCS
workstation controls at the facilities, and then others at the regional
operational centers and then others at the central IOC, and stitched them
together. Now you add the dynamic nature of the business with changing assets,
and now a mobile workforce we have addition operational stations that of the
mobile (roaming worker). All must see the same state, with scope to their span
of control, and accountability to control.
Since the 1990’s, control
system technology has enabled a flexible delivery of work, where workers can support
both “normal” and “abnormal” situations from multiple locations, either in the
same room or across the world.
This mechanism has to be reliable, easy to implement, and easy to
maintain. Some customers have applied
this mechanism to more than 5 different
“points of operation”, which range from equipment panels, mobile devices and
local control rooms to regional and national operations centers.
The requirements have become the following:
- “Transparency of Trusted Operational State”: with real-time operational actionable decisions becoming key, the ability to monitor, the system raise the situation automatically through operational, asset self-awareness. So there is transparency to whole operational landscape situational state.
- “Point of operation”: the implementation must support a configuration where one of the multiple points of operation uniquely can operate, which includes responding to alarms.
- Simultaneous “point of operation”: the implementation must also support a configuration where more than 1 worker can operate, which is rarely more than 2.
- “Span of operation” flexibility: each “point of operation” can be an individual PID, start/stop or device, or it can be a broader “span” of operation. This “span” must be assignable in a flexible manner, where the “span” can be adjusted to become narrower or broader. Example conditions include night time or overhaul conditions for some operations.
- Ownership visibility: each possible point of operation must have a simple and clearly visible indication that it doesn’t have ownership, and reinforced indication when it does have the ownership. Clear visibility across the operational landscape as who has point of control, and as a team accountability is understood to respond to the situation promptly.
- Management of alarms: it is essential for safety, legal, environmental and health requirements that new alarms animate, suppress/shelve, annunciate and trigger display changes only at the point(s) of operation, and only the workers using the point(s) of operation can acknowledge or silence new alarms. This means all alarms from asset to process, operational, but scope of alarm responsibility is aligned with span of control, but as a team there are “no blind spots” and alarm, situational awareness is escalated based on responsiveness, and situation. Assumption of control, and someone doing something must be removed.
- Manage of operational events across different points of operation;Example operators want to be able to set operational limits/events across different operations? How is this managed and governed?
- IT/OT seamless integration;Operating, monitoring, trending, alarming and integration with other islands of information to enable the teams to make informed decisions.
- Reliability, upgradable, cyber security, network architecture, cloud;
- One problem cannot bring down the whole operations!!
- Assignment of operation: an authorized worker must have an easy and reliable means to assign and adjust the spans of operation. The following diagram shows examples of transferring the span of operation between a roving user, a local control room, and a remote operations center:
In the above diagram, Areas or Sites “A” through “D” require
supervision by different users or by the same user in different locations. This scenario also applies to multiple
operations consoles or desks within the same room. The span of operation varies with the
operations situations. The span of
operation can overlap among multiple users and multiple locations.
We need one system, but multiple operational points, and
layouts, awareness so the OPERATIONAL
TEAM can operate in unison, enabling effective operational work. Below is a high-level diagram of the operational team by the situation, you will have multiple skills in each situation, people
will move through the situational state,
but the diagram shows the merging operational work characteristics.
This emerging dynamic multi-point operational
landscape is big topic that I will explore over the next few weeks, as traditional
thinking, traditional architectures, and traditional implementations will not
enable the transformation in operational work needed to satisfy effective agile
operations.
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