PCT loops and PCT loop functions are represented using P&I symbols in the P&I diagram. These P&I symbols are located in the Special.slk symbol library.
PCT Types
There are different PCT types for PCT loops and PCT loop functions. Different P&I symbols must be used, depending on the PCT type.
The following table shows a selection of possible PCT types and the relationships between location and P&I symbol.
|
Activation site / Implementation |
On-site |
Measuring station |
Control room |
Measuring station (not visible) |
Control room (not visible) |
|
|---|---|---|---|---|---|---|
|
1 |
2 |
3 |
4 |
5 |
||
|
General |
1 |
|
|
|
|
|
|
PCS |
2 |
|
|
|
|
|
|
Process computer |
3 |
|
|
|
|
|
|
PLC |
4 |
|
|
|
|
|
See also
Containers and Container Connection Points in the P&I Diagram