diff --git a/site_ansto/instrument/reflectometer/DMC2280/controller1.txt b/site_ansto/instrument/reflectometer/DMC2280/controller1.txt
index e3bc69fe..ff627ff6 100644
--- a/site_ansto/instrument/reflectometer/DMC2280/controller1.txt
+++ b/site_ansto/instrument/reflectometer/DMC2280/controller1.txt
@@ -1,13 +1,13 @@
 NO TE: PLATYPUS - CONTROLLER 1
 NO TE:
-NO TE: $Revision: 1.5 $
-NO TE: $Date: 2007-02-13 00:44:25 $
+NO TE: $Revision: 1.6 $
+NO TE: $Date: 2007-03-05 05:37:21 $
 NO TE: Author: Dan Bartlett
 NO TE: Last revision by: $Author: dbx $
 NO TE:
 NO TE: A-BEAM SHADE RAISE
-NO TE: B-COLLIMATOR TRANSLATE
-NO TE: C-COLLIMATOR TILT
+NO TE: B-COLLIMATOR TRANSLATE A=7350364, B=6529772, C=6941582
+NO TE: C-COLLIMATOR TILT LEVEL=134660
 NO TE: D-BEAM ATTENUATOR
 NO TE: E-SLIT TOWER S3 RAISE
 NO TE: F-SLIT TOWER S4 RAISE
@@ -33,6 +33,8 @@ SIE=1,25,13,0<-2>2;'HEIDENHAIN ROQ425
 SIF=1,25,13,0<-2>2;'HEIDENHAIN ROQ425
 SIG=0,25,13,0<-2>2;'SPARE
 SIH=0,25,13,0<-2>2;'SPARE
+POS=0;' INITIAL BEAM ATTENUATOR FREQUENCY IS 0, PARKED IN THE BEAM
+XQ #ATTEN,1
 JS #THREAD0
 EN
 NO ----------------------------------------
@@ -48,8 +50,8 @@ ENDIF
 IF (_SPC>50000)
 SPC=50000
 ENDIF
-IF (_SPD>50000)
-SPD=50000
+IF (_SPD>200000)
+SPD=200000
 ENDIF
 IF (_SPE>50000)
 SPE=50000
@@ -137,3 +139,54 @@ DCF=OLDDCF
 NO DCG=OLDDCG AXES NOT USED
 NO DCH=OLDDCH
 RE
+NO ----------------------------------------
+#ATTEN
+DEADBD=20
+PARKPOS=8309158; 'PARKING ENCODER POSITION
+SHUTPOS=8390307; 'BEAM SHUT ENCODER POSITION
+STRTPOS=8390307; 'OSCILLATING START ENCODER POSITION
+IF (POS=-1)&(@ABS[_TPD - PARKPOS]>DEADBD)
+NO TE: PARK ATTENUATOR OUT OF BEAM - NO ATTENUATION
+SPD=75000
+ACD=50000
+DCD=50000
+SHD
+PRD=(_TPD - PARKPOS)/8192*25000
+BGD
+AMD
+MOD
+ENDIF
+IF (POS=0)&(@ABS[_TPD - SHUTPOS]>DEADBD)
+NO TE: PARK ATTENUATOR IN BEAM - LIKE A SHUTTER
+SPD=75000
+ACD=50000
+DCD=50000
+SHD
+PRD=(_TPD - SHUTPOS)/8192*25000
+BGD
+AMD
+MOD
+ENDIF
+IF (POS=1)
+NO TE: OSCILLATE ATTENUATOR
+SHD
+SPD=75000
+ACD=50000
+DCD=50000
+PRD=(_TPD - STRTPOS)/8192*25000
+BGD
+AMD
+SPD=180000
+ACD=_SPD*4;' 0.5S TO ACCELERATE
+DCD=_ACD
+#LOOP
+PRD=140625;' 90MM = 60MM IN THE BEAM, 15MM FOR ACCEL AND 15MM FOR DECEL
+BGD
+AMD
+PRD=-140625
+BGD
+AMD
+ENDIF
+JP #LOOP,(POS=1)
+JP #ATTEN
+EN
\ No newline at end of file