T820 HANDBOOK4.3 LINTOOLSThe LINtools program provides the user with a view of the control strategy components that compose theconfiguration of a single device, and an easy way to manage those components. There may be more than one of eachcomponent, but not always all component types.• I/O Modules LIN Database (file extension .dbf)• LIN Databases (Function Block Diagram - FBD, file extension .dbf)• Sequences (Sequential Function Chart - SFC, file extension .sdb)• User Screen PageSets (file extension .uxp and .ofl)• Action block methods (Structured Text - ST, and Ladder, file extension .stx and .sto)• Modbus Gateway configurations (file extension .ujg and .gwf)In summary, LINtools• Provides a comprehensive view of the instrument configuration• Provides Build and Download functions• Assigns LIN names and node addresses to external LIN DatabasesNote. External databases (EDBs) are LIN Databases running in other LIN instruments.• Provides On-line Reconfiguration to a running LIN Database onlyNote. On-line Reconfiguration does not apply to other files, i.e. Modbus Gateway file (.gwf), SequentialFunction Chart file (.sdb),or User Screen PageSets file (.ofl), etc..Chapter 4Page 4 - 4HA029131Issue 3 Feb 08
T820 HANDBOOK4.3.1On-line ReconfigurationOn-line Reconfiguration of a unit may involve adding and editing function blocks and wires in a running controlstrategy. Changes, such as adding new function blocks and wires are automatically made as ‘Tentative’. However,when using on-line reconfiguration, LINtools will not permit changes to certain fields of I/O function blocks unlessspecific conditions are acheived. To ensure that changes made to block fields do not impact on the running controlstrategy until the user decides, LINtools detaches the block from the control strategy, allowing changes to first be triedusing the ‘Try’ function, and accepted using the ‘Apply’ function.On-line Reconfiguration allows the user to make ‘Tentative’ edits to a running control strategy before applyingchanges. During on-line reconfiguration, the user can edit a LIN Database loaded in LINtools, and ‘Try’ changes in theinstrument to ensure the changes have the desired affect. The user can then either ‘Apply’ these changes, making thempermanent in both LINtools and the instrument; ‘Discard’ the changes (restoring the last saved data); or ‘Untry’ thechanges (removing the changes from the live instrument, but retaining them in the PC, so that the changes can bealtered in LINtools before again using the ‘Try’ command).CautionAny changes made directly to a running function block cannot be ‘Tried/Untried’, but are applied immediately (e.g.changing the value of a block’s field).In order to make ‘Tentative’ changes to a running function block, the user must choose to ‘Unlink’ that function blockin LINtools, so any changes are not directly applied to the function block in a running control strategy. The user canthen ‘Try’ the changes as normal. The instrument creates a new copy of the function block, with all of the changes, andruns it in place of the original. At this point the T820 instrument will be running the altered LIN Database, however,the original function block is still present in the LIN Database, so can be restored if ‘Untry’ or ‘Discard’ is selected).The user can also ‘Re-link’ the function block, discarding all changes made to it, by selecting ‘Undo Unlink’ on thefunction block.During On-line Reconfiguration, using the Apply command will save changes in the running LIN Database, but anyother files, i.e. Modbus Gateway file (.gwf), Sequential Function Chart file (.sdb),or User Screen PageSets file (.ofl),etc., that have been edited using the relevant Tools, or are dependant on the LIN Database at load, MUST bedownloaded. However, after files have been downloaded and the control strategy is stable, either the application willhave to be stopped and then loaded again, or the power to the instrument must be isolated and then re-applied.IMPORTANTOn-line Reconfiguration only applies to LIN Database files, .dbf.HA029131Issue 3 Feb 08Chapter 4Page 4 - 5