diff --git a/site_ansto/motor_dmc2280.c b/site_ansto/motor_dmc2280.c
index 4b777f90..b3725444 100644
--- a/site_ansto/motor_dmc2280.c
+++ b/site_ansto/motor_dmc2280.c
@@ -73,6 +73,7 @@ typedef struct __MoDriv {
   char *errorMsg; /**< Points to memory for error messages */ 
   char units[256]; /**<  physical units for axis */
   char long_name[256]; /**<  long name of motor */
+  char part[256]; /**<  assembly which motor belongs to */
   float speed; /**<  physical units per second */
   float maxSpeed; /**<  physical units per second */
   float accel; /**<  physical units per second^2 */
@@ -2028,6 +2029,18 @@ int DMC2280Action(SConnection *pCon, SicsInterp *pSics, void *pData,
       }
       return 1;
     }
+    if (strcasecmp("part", argv[1]) == 0) {
+      if (argc > 2) {
+        strncpy(self->part, argv[2], sizeof(self->part));
+        self->part[sizeof(self->part) - 1] = '\0';
+      }
+      else {
+        char line[132];
+        snprintf(line, 132, "%s.part = %s", self->name, self->part);
+        SCWrite(pCon, line, eValue);
+      }
+      return 1;
+    }
     if (strcasecmp("list", argv[1]) == 0) {
     }
   }