diff --git a/config/OBSW_Config.py b/config/OBSW_Config.py
index bf38c78b1601f61f68798952bcc2baeaa3115b61..c5ab2160e0459cb769df5b5f75d5654f5f9f039e 100644
--- a/config/OBSW_Config.py
+++ b/config/OBSW_Config.py
@@ -40,6 +40,7 @@ Mission/Device specific information.
 # Object IDs
 GPS0_ObjectId = bytearray([0x44, 0x10, 0x1F, 0x00])
 GPS1_ObjectId = bytearray([0x44, 0x20, 0x20, 0x00])
+DUMMY_DEVICE_ID = bytearray([0x44, 0x00, 0xAF, 0xFE])
 
 # SIDs
 GPS0_SID = bytearray([0x00, 0x00, 0x1f, 0x00])
diff --git a/obsw_tmtc_client.py b/obsw_tmtc_client.py
index 7ec3c6338f3ddb830a0762ae07228347644e2fa5..5dab45b0fff247c5d3a183e50ae6896271838dea 100644
--- a/obsw_tmtc_client.py
+++ b/obsw_tmtc_client.py
@@ -111,7 +111,7 @@ def main():
         sender_and_receiver = SingleCommandSenderReceiver(
             comInterface=communication_interface, tmtcPrinter=tmtc_printer, tmListener=tm_listener,
             pusPacketTuple=pus_packet_tuple, tmTimeout=g.G_TM_TIMEOUT,
-            tcTimeoutFactor=g.G_TC_SEND_TIMEOUT_FACTOR, doPrintToFile=g.G_PRINT_TO_FILE)
+            tcTimeoutFactor=g.G_TC_SEND_TIMEOUT_FACTOR)
         sender_and_receiver.send_single_tc_and_receive_tm()
 
     elif g.G_MODE_ID == g.ModeList.ServiceTestMode:
diff --git a/sendreceive/obsw_single_command_sender_receiver.py b/sendreceive/obsw_single_command_sender_receiver.py
index 238f0d35f58af6fb52960e4659facb686cfe5f7b..b7c9d299bb9c61036f5e7441632aed1356400db6 100644
--- a/sendreceive/obsw_single_command_sender_receiver.py
+++ b/sendreceive/obsw_single_command_sender_receiver.py
@@ -22,8 +22,7 @@ class SingleCommandSenderReceiver(CommandSenderReceiver):
     This object can be used by instantiating it and calling sendSingleTcAndReceiveTm()
     """
     def __init__(self, comInterface: ComIF_T, tmtcPrinter: TmTcPrinterT, tmListener: TmListenerT,
-                 pusPacketTuple: tuple, tmTimeout: float, tcTimeoutFactor: float,
-                 doPrintToFile: bool):
+                 pusPacketTuple: tuple, tmTimeout: float, tcTimeoutFactor: float):
         """
         :param comInterface: CommunicationInterface object, passed on to CommandSenderReceiver
         :param tmListener: TmListener object which runs in the background and receives all TM
@@ -35,8 +34,8 @@ class SingleCommandSenderReceiver(CommandSenderReceiver):
         :param doPrintToFile: Specify whether output is also printed to a file
         """
         super().__init__(comInterface=comInterface, tmListener=tmListener, tmtcPrinter=tmtcPrinter,
-                         tmTimeout=tmTimeout, tcSendTimeoutFactor=tcTimeoutFactor,
-                         doPrintToFile=doPrintToFile)
+                         tmTimeout=tmTimeout, tcSendTimeoutFactor=tcTimeoutFactor)
+        self.faulty_input = False
         try:
             self.pus_packet, self.pus_packet_info = pusPacketTuple
         except TypeError:
diff --git a/tc/OBSW_TcService200.py b/tc/OBSW_TcService200.py
index 31105dbf455a85f22e1dde942e16f5410306b623..1e2ddf5a4228a3ff0342be52f8b18e77544cddc2 100644
--- a/tc/OBSW_TcService200.py
+++ b/tc/OBSW_TcService200.py
@@ -13,13 +13,14 @@ Run script with -s <Service or Device> -m 3 with optional -p parameter for file
 """
 from tc.OBSW_TcPacket import PUSTelecommand
 from tc.OBSW_TcPacker import tcQueueT
+import config.OBSW_Config as g
 import struct
 
 
 def packService200TestInto(tcQueue: tcQueueT) -> tcQueueT:
     tcQueue.appendleft(("print", "Testing Service 200"))
     # Object ID: Dummy Device
-    objectId = bytearray([0x44, 0x00, 0xAF, 0xFE])
+    objectId = g.DUMMY_DEVICE_ID
     # Set On Mode
     tcQueue.appendleft(("print", "\r\nTesting Service 200: Set Mode On"))
     modeData = packModeData(objectId, 1, 0)