diff --git a/site_ansto/instrument/rsd/hpaths.tcl b/site_ansto/instrument/rsd/hpaths.tcl
index e69de29b..d9ca5031 100644
--- a/site_ansto/instrument/rsd/hpaths.tcl
+++ b/site_ansto/instrument/rsd/hpaths.tcl
@@ -0,0 +1,29 @@
+set hpaths [list \
+/sample  /monochromator /slits \
+/slits/1 /slits/2 /detector ] 
+
+# Maps devices (eg motors) to hipadaba paths.
+array set motor_hpath [list \
+mom /monochromator \
+mtth /monochromator \
+mth /monochromator \
+mchi /monochromator \
+mphi /monochromator \
+my /monochromator \
+mx /monochromator \
+som /sample \
+stth /sample \
+sth /sample \
+echi /sample \
+ephi /sample \
+sy /sample \
+sx /sample \
+sz /sample \
+psp /slits/1 \
+psw /slits/1 \
+psh /slits/1 \
+psho /slits/1 \
+ssp /slits/2 \
+ssw /slits/2 \
+ssh /slits/2 \
+ssho /slits/2 ]