diff --git a/homeassistant/components/concord232/alarm_control_panel.py b/homeassistant/components/concord232/alarm_control_panel.py
index 4821e589b13..a209fba93ed 100644
--- a/homeassistant/components/concord232/alarm_control_panel.py
+++ b/homeassistant/components/concord232/alarm_control_panel.py
@@ -9,8 +9,8 @@ import homeassistant.components.alarm_control_panel as alarm
 import homeassistant.helpers.config_validation as cv
 from homeassistant.components.alarm_control_panel import PLATFORM_SCHEMA
 from homeassistant.const import (
-    CONF_HOST, CONF_NAME, CONF_PORT, STATE_ALARM_ARMED_AWAY,
-    STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED)
+    CONF_HOST, CONF_NAME, CONF_PORT, CONF_CODE, CONF_MODE,
+    STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED)
 
 REQUIREMENTS = ['concord232==0.15']
 
@@ -19,12 +19,15 @@ _LOGGER = logging.getLogger(__name__)
 DEFAULT_HOST = 'localhost'
 DEFAULT_NAME = 'CONCORD232'
 DEFAULT_PORT = 5007
+DEFAULT_MODE = 'audible'
 
 SCAN_INTERVAL = datetime.timedelta(seconds=10)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
     vol.Optional(CONF_HOST, default=DEFAULT_HOST): cv.string,
     vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+    vol.Optional(CONF_CODE): cv.string,
+    vol.Optional(CONF_MODE, default=DEFAULT_MODE): cv.string,
     vol.Optional(CONF_PORT, default=DEFAULT_PORT): cv.port,
 })
 
@@ -32,13 +35,15 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Concord232 alarm control panel platform."""
     name = config.get(CONF_NAME)
+    code = config.get(CONF_CODE)
+    mode = config.get(CONF_MODE)
     host = config.get(CONF_HOST)
     port = config.get(CONF_PORT)
 
     url = 'http://{}:{}'.format(host, port)
 
     try:
-        add_entities([Concord232Alarm(url, name)], True)
+        add_entities([Concord232Alarm(url, name, code, mode)], True)
     except requests.exceptions.ConnectionError as ex:
         _LOGGER.error("Unable to connect to Concord232: %s", str(ex))
 
@@ -46,12 +51,14 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
 class Concord232Alarm(alarm.AlarmControlPanel):
     """Representation of the Concord232-based alarm panel."""
 
-    def __init__(self, url, name):
+    def __init__(self, url, name, code, mode):
         """Initialize the Concord232 alarm panel."""
         from concord232 import client as concord232_client
 
         self._state = None
         self._name = name
+        self._code = code
+        self._mode = mode
         self._url = url
         self._alarm = concord232_client.Client(self._url)
         self._alarm.partitions = self._alarm.list_partitions()
@@ -93,12 +100,35 @@ class Concord232Alarm(alarm.AlarmControlPanel):
 
     def alarm_disarm(self, code=None):
         """Send disarm command."""
+        if not self._validate_code(code, STATE_ALARM_DISARMED):
+            return
         self._alarm.disarm(code)
 
     def alarm_arm_home(self, code=None):
         """Send arm home command."""
-        self._alarm.arm('stay')
+        if not self._validate_code(code, STATE_ALARM_ARMED_HOME):
+            return
+        if self._mode == 'silent':
+            self._alarm.arm('stay', 'silent')
+        else:
+            self._alarm.arm('stay')
 
     def alarm_arm_away(self, code=None):
         """Send arm away command."""
+        if not self._validate_code(code, STATE_ALARM_ARMED_AWAY):
+            return
         self._alarm.arm('away')
+
+    def _validate_code(self, code, state):
+        """Validate given code."""
+        if self._code is None:
+            return True
+        if isinstance(self._code, str):
+            alarm_code = self._code
+        else:
+            alarm_code = self._code.render(from_state=self._state,
+                                           to_state=state)
+        check = not alarm_code or code == alarm_code
+        if not check:
+            _LOGGER.warning("Invalid code given for %s", state)
+        return check