diff --git a/fhem/FHEM/00_RPII2C.pm b/fhem/FHEM/00_RPII2C.pm
index da728985a..06df654c2 100644
--- a/fhem/FHEM/00_RPII2C.pm
+++ b/fhem/FHEM/00_RPII2C.pm
@@ -536,6 +536,7 @@ sub RPII2C_HWACCESS_ioctl($$) {
 
 <a name="RPII2C"></a>
 <h3>RPII2C</h3>
+(en | <a href="commandref_DE.html#RPII2C">de</a>)
 <ul>
 	<a name="RPII2C"></a>
 		Provides access to Raspberry Pi's I2C interfaces for some logical modules and also directly.<br>
@@ -682,6 +683,7 @@ sub RPII2C_HWACCESS_ioctl($$) {
 
 <a name="RPII2C"></a>
 <h3>RPII2C</h3>
+(<a href="commandref.html#RPII2C">en</a> | de)
 <ul>
 	<a name="RPII2C"></a>
 		Erm&ouml;glicht den Zugriff auf die I2C Schnittstellen des Raspberry Pi, BBB, Cubie &uuml;ber logische Module. Register von I2C IC's k&ouml;nnen auch direkt gelesen und geschrieben werden.<br><br>
diff --git a/fhem/FHEM/51_RPI_GPIO.pm b/fhem/FHEM/51_RPI_GPIO.pm
index 7abbc99f9..4af47756e 100644
--- a/fhem/FHEM/51_RPI_GPIO.pm
+++ b/fhem/FHEM/51_RPI_GPIO.pm
@@ -629,6 +629,7 @@ sub RPI_GPIO_inthandling($$) {		#start/stop Interrupthandling
 
 <a name="RPI_GPIO"></a>
 <h3>RPI_GPIO</h3>
+(en | <a href="commandref_DE.html#RPI_GPIO">de</a>)
 <ul>
 	<a name="RPI_GPIO"></a>
 		Raspberry Pi offers direct access to several GPIO via header P1 (and P5 on V2). The Pinout is shown in table under define. 
@@ -718,7 +719,6 @@ sub RPI_GPIO_inthandling($$) {		#start/stop Interrupthandling
     Examples:
     <pre>
       define Pin12 RPI_GPIO 18
-      attr Pin12
       attr Pin12 poll_interval 5
     </pre>
   </ul>
@@ -818,6 +818,7 @@ sub RPI_GPIO_inthandling($$) {		#start/stop Interrupthandling
 
 <a name="RPI_GPIO"></a>
 <h3>RPI_GPIO</h3>
+(<a href="commandref.html#RPI_GPIO">en</a> | de)
 <ul>
   <a name="RPI_GPIO"></a>
     Das Raspberry Pi erm&ouml;glicht direkten Zugriff zu einigen GPIO's &uuml;ber den Pfostenstecker P1 (und P5 bei V2). Die Steckerbelegung ist in den Tabellen unter Define zu finden.
@@ -907,7 +908,6 @@ sub RPI_GPIO_inthandling($$) {		#start/stop Interrupthandling
     Beispiele:
     <pre>
       define Pin12 RPI_GPIO 18
-      attr Pin12
       attr Pin12 poll_interval 5
     </pre>
   </ul>
diff --git a/fhem/FHEM/52_I2C_MCP23008.pm b/fhem/FHEM/52_I2C_MCP23008.pm
index 2f52c51f8..a1b42abb8 100644
--- a/fhem/FHEM/52_I2C_MCP23008.pm
+++ b/fhem/FHEM/52_I2C_MCP23008.pm
@@ -58,10 +58,13 @@ sub I2C_MCP23008_Initialize($) {
 	$hash->{GetFn}    = "I2C_MCP23008_Get";
 	$hash->{I2CRecFn} = "I2C_MCP23008_I2CRec";
 	$hash->{AttrList} = "IODev do_not_notify:1,0 ignore:1,0 showtime:1,0".
-						"poll_interval OutputPorts ".
-											"Pullup invert_input Interrupt OnStartup ".
-											"InterruptOut:separate_active-low,separate_active-high,separate_open-drain ".
-						"$readingFnAttributes";
+                      "poll_interval OnStartup ".
+                      "OutputPorts:multiple-strict,A0,A1,A2,A3,A4,A5,A6,A7 ".
+                      "Pullup:multiple-strict,A0,A1,A2,A3,A4,A5,A6,A7 ".
+                      "invert_input:multiple-strict,A0,A1,A2,A3,A4,A5,A6,A7 ".
+                      "Interrupt:multiple-strict,A0,A1,A2,A3,A4,A5,A6,A7 ".
+                      "InterruptOut:separate_active-low,separate_active-high,separate_open-drain ".
+                      "$readingFnAttributes";
 }
 ###############################################################################
 sub I2C_MCP23008_Define($$) {
@@ -490,6 +493,7 @@ sub I2C_MCP23008_UpdReadings($$$) {																						#nach Rueckmeldung read
 
 <a name="I2C_MCP23008"></a>
 <h3>I2C_MCP23008</h3>
+(en | <a href="commandref_DE.html#I2C_MCP23008">de</a>)
 <ul>
 	<a name="I2C_MCP23008"></a>
 		Provides an interface to the MCP23008 16 channel port extender IC. On Raspberry Pi the Interrupt Pin's can be connected to an GPIO and <a href="#RPI_GPIO">RPI_GPIO</a> can be used to get the port values if an interrupt occurs.<br>
@@ -590,6 +594,7 @@ sub I2C_MCP23008_UpdReadings($$$) {																						#nach Rueckmeldung read
 
 <a name="I2C_MCP23008"></a>
 <h3>I2C_MCP23008</h3>
+(<a href="commandref.html#I2C_MCP23008">en</a> | de)
 <ul>
 	<a name="I2C_MCP23008"></a>
 		Erm&ouml;glicht die Verwendung eines MCP23008 I2C 8 Bit Portexenders. 
diff --git a/fhem/FHEM/52_I2C_MCP23017.pm b/fhem/FHEM/52_I2C_MCP23017.pm
index 53828753c..90ef049e7 100644
--- a/fhem/FHEM/52_I2C_MCP23017.pm
+++ b/fhem/FHEM/52_I2C_MCP23017.pm
@@ -61,10 +61,13 @@ sub I2C_MCP23017_Initialize($) {
 	$hash->{GetFn}    = "I2C_MCP23017_Get";
 	$hash->{I2CRecFn} = "I2C_MCP23017_I2CRec";
 	$hash->{AttrList} = "IODev do_not_notify:1,0 ignore:1,0 showtime:1,0".
-						"poll_interval OutputPorts ".
-											"Pullup invert_input Interrupt OnStartup ".
+                      "poll_interval OnStartup ".
+											"OutputPorts:multiple-strict,A0,A1,A2,A3,A4,A5,A6,A7,B0,B1,B2,B3,B4,B5,B6,B7 ".
+                      "Pullup:multiple-strict,A0,A1,A2,A3,A4,A5,A6,A7,B0,B1,B2,B3,B4,B5,B6,B7 ".
+                      "invert_input:multiple-strict,A0,A1,A2,A3,A4,A5,A6,A7,B0,B1,B2,B3,B4,B5,B6,B7 ".
+                      "Interrupt:multiple-strict,A0,A1,A2,A3,A4,A5,A6,A7,B0,B1,B2,B3,B4,B5,B6,B7 ".
 											"InterruptOut:separate_active-low,separate_active-high,separate_open-drain,connected_active-low,connected_active-high,connected_open-drain ".
-						"$readingFnAttributes";
+                      "$readingFnAttributes";
 }
 ###############################################################################
 sub I2C_MCP23017_Define($$) {
@@ -491,6 +494,7 @@ sub I2C_MCP23017_UpdReadings($$$) {																						#nach Rueckmeldung read
 
 <a name="I2C_MCP23017"></a>
 <h3>I2C_MCP23017</h3>
+(en | <a href="commandref_DE.html#I2C_MCP23017">de</a>)
 <ul>
 	<a name="I2C_MCP23017"></a>
 		Provides an interface to the MCP23017 16 channel port extender IC. On Raspberry Pi the Interrupt Pin's can be connected to an GPIO and <a href="#RPI_GPIO">RPI_GPIO</a> can be used to get the port values if an interrupt occurs.<br>
@@ -600,6 +604,7 @@ sub I2C_MCP23017_UpdReadings($$$) {																						#nach Rueckmeldung read
 
 <a name="I2C_MCP23017"></a>
 <h3>I2C_MCP23017</h3>
+(<a href="commandref.html#I2C_MCP23017">en</a> | de)
 <ul>
 	<a name="I2C_MCP23017"></a>
 		Erm&ouml;glicht die Verwendung eines MCP23017 I2C 16 Bit Portexenders. 
diff --git a/fhem/FHEM/52_I2C_MCP342x.pm b/fhem/FHEM/52_I2C_MCP342x.pm
index 8f12f068d..6262dd92c 100644
--- a/fhem/FHEM/52_I2C_MCP342x.pm
+++ b/fhem/FHEM/52_I2C_MCP342x.pm
@@ -336,6 +336,7 @@ sub I2C_MCP342x_readvoltage($@) {
 
 <a name="I2C_MCP342x"></a>
 <h3>I2C_MCP342x</h3>
+(en | <a href="commandref_DE.html#I2C_MCP342x">de</a>)
 <ul>
 	<a name="I2C_MCP342x"></a>
 		Provides an interface to the MCP3422/3/4 A/D converter.
@@ -393,6 +394,7 @@ sub I2C_MCP342x_readvoltage($@) {
 
 <a name="I2C_MCP342x"></a>
 <h3>I2C_MCP342x</h3>
+(<a href="commandref.html#I2C_MCP342x">en</a> | de)
 <ul>
 	<a name="I2C_MCP342x"></a>
 		Erm&ouml;glicht die Verwendung eines MCP3422/3/4 I2C A/D Wandler.
diff --git a/fhem/FHEM/52_I2C_PCA9532.pm b/fhem/FHEM/52_I2C_PCA9532.pm
index 7c872ad6b..05b9b0800 100644
--- a/fhem/FHEM/52_I2C_PCA9532.pm
+++ b/fhem/FHEM/52_I2C_PCA9532.pm
@@ -47,7 +47,8 @@ sub I2C_PCA9532_Initialize($) {
 	$hash->{GetFn}    = "I2C_PCA9532_Get";
 	$hash->{I2CRecFn} = "I2C_PCA9532_I2CRec";
 	$hash->{AttrList} = "IODev do_not_notify:1,0 ignore:1,0 showtime:1,0".
-											"poll_interval T0:slider,0,1,255 T1:slider,0,1,255 OutputPorts OnStartup InputPorts ".
+											"poll_interval T0:slider,0,1,255 T1:slider,0,1,255 OnStartup InputPorts ".
+											"OutputPorts:multiple-strict,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 ".
 											"$readingFnAttributes";
 }
 ###############################################################################
@@ -443,6 +444,7 @@ sub I2C_PCA9532_UpdReadings($$$) {
 
 <a name="I2C_PCA9532"></a>
 <h3>I2C_PCA9532</h3>
+(en | <a href="commandref_DE.html#I2C_PCA9532">de</a>)
 <ul>
 	<a name="I2C_PCA9532"></a>
 		Provides an interface to the PCA9532 I2C 16 channel PWM IC. 
@@ -507,7 +509,7 @@ sub I2C_PCA9532_UpdReadings($$$) {
 		<li>OnStartup<br>
 			Comma separated list of output ports/PWM registers and their desired state after start<br>
 			Without this atribut all output ports will set to last state<br>
-			Default: -, valid values: <port>=on|off|PWM0|PWM1|last or PWM0|PWM1=0..255|last where <port> = 0 - 15<br><br>
+			Default: -, valid values: &lt;port&gt;=on|off|PWM0|PWM1|last or PWM0|PWM1=0..255|last where &lt;port&gt; = 0 - 15<br><br>
 		</li>
 		<li>T0/T1<br>
 			Sets PWM0/PWM1 to another Frequency. The Formula is: Fx = 152/(Tx + 1) The corresponding frequency value is shown under internals.<br>
@@ -527,6 +529,7 @@ sub I2C_PCA9532_UpdReadings($$$) {
 
 <a name="I2C_PCA9532"></a>
 <h3>I2C_PCA9532</h3>
+(<a href="commandref.html#I2C_PCA9532">en</a> | de)
 <ul>
 	<a name="I2C_PCA9532"></a>
 		Erm&ouml;glicht die Verwendung eines PCA9532 I2C 16 Kanal PWM IC. 
@@ -591,7 +594,7 @@ sub I2C_PCA9532_UpdReadings($$$) {
 		<li>OnStartup<br>
 			Durch Komma getrennte Output Ports/PWM Register und ihr gew&uuml;nschter Status nach dem Start.<br>
 			Ohne dieses Attribut werden alle Ausg&auml;nge nach dem Start auf den letzten Status gesetzt.<br>
-			Standard: -, g&uuml;ltige Werte: <port>=on|off|PWM0|PWM1|last oder PWM0|PWM1=0..255|last wobei <port> = 0 - 15<br><br>
+			Standard: -, g&uuml;ltige Werte: &lt;port&gt;=on|off|PWM0|PWM1|last oder PWM0|PWM1=0..255|last wobei &lt;port&gt; = 0 - 15<br><br>
 		</li>
 		<li>T0/T1<br>
 			&Auml;nderung der Frequenzwerte von PWM0/PWM1 nach der Formel: Fx = 152/(Tx + 1). Der entsprechende Frequenzwert wird unter Internals angezeigt.<br>
diff --git a/fhem/FHEM/52_I2C_PCF8574.pm b/fhem/FHEM/52_I2C_PCF8574.pm
index cddcf6c11..b0caf07e0 100644
--- a/fhem/FHEM/52_I2C_PCF8574.pm
+++ b/fhem/FHEM/52_I2C_PCF8574.pm
@@ -26,7 +26,8 @@ sub I2C_PCF8574_Initialize($) {
   $hash->{ParseFn}   = 	"I2C_PCF8574_Parse";
   $hash->{I2CRecFn}  = 	"I2C_PCF8574_I2CRec";
   $hash->{AttrList}  = 	"IODev do_not_notify:1,0 ignore:1,0 showtime:1,0 ".
-												"poll_interval InputPorts OnStartup ".
+												"poll_interval OnStartup ".
+												"InputPorts:multiple-strict,0,1,2,3,4,5,6,7 ".
 												"$readingFnAttributes";
 }
 ###################################
@@ -339,6 +340,7 @@ sub I2C_PCF8574_Parse($$) {	#wird ueber dispatch vom physical device aufgerufen
 
 <a name="I2C_PCF8574"></a>
 <h3>I2C_PCF8574</h3>
+(en | <a href="commandref_DE.html#I2C_PCF8574">de</a>)
 <ul>
 	<a name="I2C_PCF8574"></a>
 		Provides an interface to the PCA9532 8 channel port extender IC. On Raspberry Pi the Interrupt Pin can be connected to an GPIO and <a href="#RPI_GPIO">RPI_GPIO</a> can be used to get the port values if an interrupt occurs.<br>
@@ -398,7 +400,7 @@ sub I2C_PCF8574_Parse($$) {	#wird ueber dispatch vom physical device aufgerufen
 		<li>OnStartup<br>
 			Comma separated list of output ports and their desired state after start<br>
 			Without this atribut all output ports will set to last state<br>
-			Default: -, valid values: <port>=on|off|last where <port> = 0 - 7<br><br>
+			Default: -, valid values: &lt;port&gt;=on|off|last where &lt;port&gt; = 0 - 7<br><br>
 		</li>
 		<li><a href="#IODev">IODev</a></li>
 		<li><a href="#ignore">ignore</a></li>
@@ -414,6 +416,7 @@ sub I2C_PCF8574_Parse($$) {	#wird ueber dispatch vom physical device aufgerufen
 
 <a name="I2C_PCF8574"></a>
 <h3>I2C_PCF8574</h3>
+(<a href="commandref.html#I2C_PCF8574">en</a> | de)
 <ul>
 	<a name="I2C_PCF8574"></a>
 		Erm&ouml;glicht die Verwendung eines PCF8574 I2C 8 Bit Portexenders. 
@@ -474,7 +477,7 @@ sub I2C_PCF8574_Parse($$) {	#wird ueber dispatch vom physical device aufgerufen
 		<li>OnStartup<br>
 			Durch Komma getrennte Output Ports und ihr gew&uuml;nschter Status nach dem Start.<br>
 			Ohne dieses Attribut werden alle Ausg&auml;nge nach dem Start auf den letzten Status gesetzt.<br>
-			Standard: -, g&uuml;ltige Werte: <port>=on|off|last wobei <port> = 0 - 7<br><br>
+			Standard: -, g&uuml;ltige Werte: &lt;port&gt;=on|off|last wobei &lt;port&gt; = 0 - 7<br><br>
 		</li>
 		<li><a href="#IODev">IODev</a></li>
 		<li><a href="#ignore">ignore</a></li>
diff --git a/fhem/FHEM/52_I2C_SHT21.pm b/fhem/FHEM/52_I2C_SHT21.pm
index 972467acc..8ef0a746d 100644
--- a/fhem/FHEM/52_I2C_SHT21.pm
+++ b/fhem/FHEM/52_I2C_SHT21.pm
@@ -275,6 +275,7 @@ sub I2C_SHT21_readHumidity($) {
 
 <a name="I2C_SHT21"></a>
 <h3>I2C_SHT21</h3>
+(en | <a href="commandref_DE.html#I2C_SHT21">de</a>)
 <ul>
 	<a name="I2C_SHT21"></a>
 		Provides an interface to the SHT21 I2C Humidity sensor from <a href="www.sensirion.com">Sensirion</a>.
@@ -320,6 +321,7 @@ sub I2C_SHT21_readHumidity($) {
 
 <a name="I2C_SHT21"></a>
 <h3>I2C_SHT21</h3>
+(<a href="commandref.html#I2C_SHT21">en</a> | de)
 <ul>
 	<a name="I2C_SHT21"></a>
 		Erm&ouml;glicht die Verwendung eines SHT21 I2C Feuchtesensors von <a href="www.sensirion.com">Sensirion</a>.