diff --git a/iocBoot/iocWithAsyn/motor.substitutions.sim b/iocBoot/iocWithAsyn/motor.substitutions.sim
new file mode 100644
index 00000000..98e78713
--- /dev/null
+++ b/iocBoot/iocWithAsyn/motor.substitutions.sim
@@ -0,0 +1,9 @@
+file "../../db/basic_asyn_motor.db"
+{
+pattern
+{P,     N,  M,        DTYP,         PORT,       ADDR,  DESC,          EGU,      DIR,  VELO,  VBAS,  ACCL,  BDST,  BVEL,  BACC,  MRES,  PREC,  DHLM,  DLLM,  INIT}
+{IOC:,  1,  "m$(N)",  "asynMotor",  motorSim1,  0,     "motor $(N)",  degrees,  Pos,  1,     .1,    .2,    0,     1,     .2,    0.01,  5,     100,   -100,  ""}
+{IOC:,  2,  "m$(N)",  "asynMotor",  motorSim1,  1,     "motor $(N)",  degrees,  Pos,  1,     .1,    .2,    0,     1,     .2,    0.01,  5,     100,   -100,  ""}
+{IOC:,  3,  "m$(N)",  "asynMotor",  motorSim1,  2,     "motor $(N)",  degrees,  Pos,  1,     .1,    .2,    0,     1,     .2,    0.01,  5,     100,   -100,  ""}
+{IOC:,  4,  "m$(N)",  "asynMotor",  motorSim1,  3,     "motor $(N)",  degrees,  Pos,  1,     .1,    .2,    0,     1,     .2,    0.01,  5,     100,   -100,  ""}
+}
diff --git a/iocBoot/iocWithAsyn/st.cmd.sim b/iocBoot/iocWithAsyn/st.cmd.sim
new file mode 100644
index 00000000..91ff22c7
--- /dev/null
+++ b/iocBoot/iocWithAsyn/st.cmd.sim
@@ -0,0 +1,19 @@
+# The is the ASYN example for communication to 4 simulated motors
+# "#!" marks lines that can be uncommented.
+
+< envPaths
+
+dbLoadDatabase("$(TOP)/dbd/WithAsyn.dbd")
+WithAsyn_registerRecordDeviceDriver(pdbbase)
+dbLoadTemplate("motor.substitutions.sim")
+
+motorSimCreateController("motorSim1", 4)
+#asynSetTraceIOMask("motorSim1", 0, 4)
+#asynSetTraceMask("motorSim1", 0, 255)
+
+# motorSimConfigAxis(port, axis, lowLimit, highLimit, home, start)
+motorSimConfigAxis("motorSim1", 0, 20000, -20000,  500, 0)
+motorSimConfigAxis("motorSim1", 1, 20000, -20000, 1500, 0)
+motorSimConfigAxis("motorSim1", 2, 20000, -20000, 2500, 0)
+motorSimConfigAxis("motorSim1", 3, 20000, -20000, 3000, 0)
+iocInit