Page History

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• Signal state change to 33 (Burst close signal received)
• Move (MA) to positive closed position (P1)
• If error checking is enabled (Ec=1), check drift at previous, assumed positive negative closed position (call X8X9) (this is redundant here)
• Hold until movement complete
• Set Df=1 to indicate slits are at positive closed position
• Copy current encoder count (C2) to shadow register Cs
• Signal state change to 91 (Move to positive closed position complete)
• Return

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• Signal state change to 40 (Fast Open Init)
• Load fast open speeds
• Calculate target position using drift of current position (X9)
• Move (MA) to the open position (P0)
• If error checking is enabled (Ec=1), check drift at previous, assumed positive closed position (call X8)
• Hold until movement complete
• Set Df=0 to indicate that slits are in open position
• Signal state change to 41 (Fast open complete)
• Goto mode select

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• Signal state change to 50 (Fast close init)
• Load fast close speedsCalculate target position using drift of current position (X9)
• If neither at position P1 (positive closed) nor at position P2 (negative closed), then
  • Move (MA) to the positive closed position (P1)
  • If error checking is enabled (Ec=1), check drift at previous, assumed negative closed position (call X8)
  • Hold until movement complete
  • Set Df=1 to indicate that slits are in positive closed position
  • Copy current encoder count to Cs for future drift checks
• EndIf
• Signal state change to 51 (Fast close complete)
• Goto mode select

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