diff --git a/iocs/acsIOC/iocBoot/iocAcs/motor.substitutions.mcb4b b/iocs/acsIOC/iocBoot/iocAcs/motor.substitutions.mcb4b
index de1d732..8b31799 100644
--- a/iocs/acsIOC/iocBoot/iocAcs/motor.substitutions.mcb4b
+++ b/iocs/acsIOC/iocBoot/iocAcs/motor.substitutions.mcb4b
@@ -3,7 +3,4 @@ file "$(MOTOR)/db/basic_asyn_motor.db"
 pattern
 {P,    N,   M,         DTYP,     PORT, ADDR,  DESC,     EGU,   DIR,   VELO,  VBAS, ACCL, BDST, BVEL, BACC,    MRES, PREC,   DHLM, DLLM, INIT}
 {IOC:, 1, "m$(N)", "asynMotor",  MCB4B1,  0, "Bottom",   mm,   Pos,    2.0,   0.1,  .2,    0,    1,   .2,    -.001,    3,   16,    0,    ""}
-{IOC:, 2, "m$(N)", "asynMotor",  MCB4B1,  1, "Top",      mm,   Pos,    2.0,   0.1,  .2,    0,    1,   .2,    -.001,    3,   16,    0,    ""}
-{IOC:, 3, "m$(N)", "asynMotor",  MCB4B1,  2, "Inboard",  mm,   Pos,    2.0,   0.1,  .2,    0,    1,   .2,    -.001,    3,   16,    0,    ""}
-{IOC:, 4, "m$(N)", "asynMotor",  MCB4B1,  3, "Outboard", mm,   Pos,    2.0,   0.1,  .2,    0,    1,   .2,    -.001,    3,   16,    0,    ""}
 }
diff --git a/iocs/acsIOC/iocBoot/iocAcs/st.cmd.mcb4b b/iocs/acsIOC/iocBoot/iocAcs/st.cmd.mcb4b
index d072557..ae3b2ec 100644
--- a/iocs/acsIOC/iocBoot/iocAcs/st.cmd.mcb4b
+++ b/iocs/acsIOC/iocBoot/iocAcs/st.cmd.mcb4b
@@ -6,15 +6,25 @@ dbLoadDatabase("../../dbd/acs.dbd")
 acs_registerRecordDeviceDriver(pdbbase)
 
 # Port 2 on a Moxa
-drvAsynIPPortConfigure("serial1", "192.168.1.16:4002",0,0,0)
+#!drvAsynIPPortConfigure("serial1", "192.168.1.16:4002",0,0,0)
 # Local serial port
 #!drvAsynSerialPortConfigure("serial1", "/dev/ttyS0", 0, 0, 0)
+drvAsynSerialPortConfigure("serial1", "/tmp/motorport", 0, 0, 0)
+asynSetOption("serial1", 0, "baud", "115200")
+asynSetOption("serial1", 0, "bits", "8")
+asynSetOption("serial1", 0, "parity", "none")
+asynSetOption("serial1", 0, "stop", "1")
+
+# not sure if these two are needed or what they should be set to:
+#!asynSetOption("serial1", 0, "clocal", "Y")
+#!asynSetOption("serial1", 0, "crtscts", "Y")
+
 asynOctetSetInputEos("serial1",0,"\r")
 asynOctetSetOutputEos("serial1",0,"\r")
 asynSetTraceIOMask("serial1", 0, 2)
 #asynSetTraceMask("serial1", 0, 255)
 
-MCB4BCreateController("MCB4B1", "serial1", 4, 100, 5000)
+MCB4BCreateController("MCB4B1", "serial1", 1, 100, 5000)
 
 ### Motors
 dbLoadTemplate "motor.substitutions.mcb4b"
@@ -26,9 +36,3 @@ iocInit
 # This IOC does not use save/restore, so set values of some PVs
 dbpf("IOC:m1.RTRY", "0")
 dbpf("IOC:m1.TWV", "0.1")
-dbpf("IOC:m2.RTRY", "0")
-dbpf("IOC:m2.TWV", "0.1")
-dbpf("IOC:m3.RTRY", "0")
-dbpf("IOC:m3.TWV", "0.1")
-dbpf("IOC:m4.RTRY", "0")
-dbpf("IOC:m4.TWV", "0.1")