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This Wiki helps User understand the logic used for Shop and Field weld in OpenPlant Isometrics Manager CONNECT Edition which can be utilized for configuration.
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All components in the OPM/OPIM model need to be tagged as either shop or field.
For isometrics a spool is something that is made completely in the shop. A skid is interpreted as an erection site
Determination of the shop or field status is controlled by a set of (user) rules. The base principles:
So we start with every component. fastener and joint tagged as spool. The following rules apply:
#1 Component rules
Component rules are based on component properties and determine if the component should be set to field.
The standard configuration (Configuration Manager > Automatic Iso Splitting > Spool Settings)
Each line holds a rule, user can add where needed:
Rule
Meaning
IE_FIELD_EXT=2
The states that every component marked as field in OPM is set to field in OPIM
IE_TYPE=(CT_GASKET|CT_BOLT|CT_CLAMP)
Gaskets, bolts and clamps are forced to field even if not done so in OPM.
This is done to cover components that do not have a SHOP_FIELD value or where the SHOP_FIELD value is not correctly set in spec or by user
Example: SIZE2 < 2
Example: Force every component with main port size smaller than 2” to field.
#2 Component port rules
Port rules determine if a port is to be tagged as spool breaking. If so the joint is marked as field.
The standard configuration (Configuration Manager > Automatic Iso Splitting > Spool Settings).
CM=(FL|IF|CL)
All ports with an end prep FL (Flanged), IF (Wafered) or CL (Clamped) is seen as spool breaking.
Example: SIZE < 2
Example: All ports with size < 2 are seen as spool breaking. A bit similar to the example used for component rules but more granular. The rule here would for instance mark a <2” branch port on as spool breaking but not the 8” main/run port
#3 Loose components
With component rules and port rules applied there are component that are still shop but have all their ports/joints marked as field. An example is a flanged tee that gets an empty SHOP_FIELD in OPM. Given the port rules are ports are tagged as spool breaking. User can configure what to do with these “loose” components:
The above settings would force the flanged TEE to field. There are separate settings for pipe and fitting. Please not that if a loose pipe/fitting is not forced to field, it will be assigned a spool number.
#4 Additional settings
Treat sheet break as spool break: not everybody likes a spool to continue from one sheet to another.
Ignore spool breaks for design system. Not mentioned in the component/por rules is the spool break note in OPM. With a spool break notes the joint closest to it will be set to field. This option is just there to ignore OPM spool breaks.
#5 Use design system settings
When this option is checked all components with SPOOL_NUMBER = 0 are marked a s field, the rest is set to shop. OPIM stops thinking.
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