Programmable Process Control: EBZ...
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DATA SHEET Fuel Cells Programmable Process Control: EBZ ProControl KEY FEATURES • easy graphical programming language • developed for the automation of test rigs • simulates a virtual user, who is able to moni- tor and influence variables • syntax check for fail-safe operation • time-controlled, event-controlled or mixed code execution • sequences can be saved, loaded, appended and transferred to other test stands • complete test and process automation STRUCTURE OF THE SOFTWARE stack test rig with liftable hood-type furnace STEP 1 ACTIONS increasing, decreasing or setting variables to a dedicated value for all published data it is possible to • change setpoints • switch variables • control actuators and so on A step contains actions, events and go on conditions. A step list contains several steps for automation of the test-rig. The step list can be moved to other PCs. working time-controlled, event-controlled or in mixed-mode logical operations (<, >, =, !=, >=, <=) comparing process variables to thresholds or other process variables supports minimum duration of a true condition and accepted deviation logical operations (AND, OR, NEGATION) to combine events up to 5 inputs for every logic unit 3 hierarchical logical units, where direct »go on conditions« and »go on targets« for programming loops and branches STEP 2 EVENTS STEP 3 GO ON CONDITIONS STEP n EBZ ProControl – overview of the workflow
Transcript of Programmable Process Control: EBZ...
DATA SHEET
Fuel
Cel
ls
Programmable Process Control:
EBZ ProControl
KEY FEATURES
• easy graphical programming language
• developed for the automation of test rigs
• simulates a virtual user, who is able to moni-tor and influence variables
• syntax check for fail-safe operation
• time-controlled, event-controlled or mixed code execution
• sequences can be saved, loaded, appended and transferred to other test stands
• complete test and process automation
STRUCTURE OF THE SOFTWARE
stack test rig with liftable hood-type furnace
STEP 1 ACTIONS increasing, decreasing or setting variables to a dedicated valuefor all published data it is possible to• change setpoints• switch variables• control actuators and so on
A step contains actions, events and go on conditions.
A step list contains several steps for automation of the test-rig. The step list can be moved to other PCs.
working time-controlled, event-controlled or in mixed-mode
logical operations (<, >, =, !=, >=, <=)
comparing process variables to thresholds or other process variables
supports minimum duration of a true condition and accepted deviation
logical operations (AND, OR, NEGATION) to combine events
up to 5 inputs for every logic unit
3 hierarchical logical units, where
direct »go on conditions« and »go on targets« for programming loops and branches
STEP 2 EVENTS
STEP 3 GO ON CONDITIONS
STEP n
EBZ ProControl – overview of the workflow
DATA SHEET
ACTION DIALOG
• name the action
• choose the according variable of the PLC
• set the function to be used e.g. a fixed value
• set values or dependencies to other variables within the PLC or sequence
GO ON TARGET
• choose time-controlled or event-controlled transition to the next step
EVENT DIALOG
• name the event
• choose the according variable
• set the function to be used e.g. a comparison to a fixed value, a relative time or an absolute time target
• set the target value and define deviations and / or a minimum time for the event state
SEQUENCE CHECK DIALOG
• all variables and program structures are controlled to be valid
• warnings and errors show the position where the message was generated
GO ON CONDITION
• choose logical combination
• choose number of inputs
• negate several inputs and / or the output
• logical combinations in up to 3 hierarchical levels
• choose the next step
OVERVIEW-FILE
• the actual sequence is stored in a txt-file for documentation purposes
EBZ Entwicklungs- und Vertriebsge-sellschaft Brennstoff zelle mbHA member of AST Group
Marschnerstrasse 2601307 Dresden, Germanywww.ebz-dresden.de
Phone +49 (0) 351 479 39 -0Fax +49 (0) 351 479 39 -18 E-Mail [email protected]
DATA SHEET
ACTUAL EVENT STATE
• shows information during the execution of a sequence
• shows “TRUE” and “FALSE” states
• shows remaining time until next steps will be executed
ADDITIONAL FEATURES
• easy graphical programming - no difficult script or programming language
• acts as a virtual user who is able to monitor and influence variables
• sequences can be saved, loaded, appended and transferred to other test stands
• including an overriding event management for parallel supervising of variables
• complete process automation, e.g.
recording of characteristic curves
predefined procedures
threshold monitoring
• interaction with OPC variables from other test benches possible
• stable operation with minimum loop execution time of one second
• program runs on the test rig PC
• sequence protocols are stored in txt-files with time stamps for every action, event and go on condition
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