Add small EMCY example.

christiansandberg · christiansandberg · commit 806b20ea1f02 · 2016-11-24T19:58:44.000+01:00
diff --git a/doc/emcy.rst b/doc/emcy.rst
@@ -15,7 +15,18 @@ the device profiles.
 Examples
 --------
 
+To list the currently active emergencies for a particular node, one can use the
+``.active`` attribute which is a list of :class:`canopen.emcy.EmcyError`
+objects::
 
+    active_codes = [emcy.code for emcy in node.emcy.active]
+    all_codes = [emcy.code for emcy in node.emcy.log]
+
+The :class:`canopen.emcy.EmcyError` objects are actually exceptions so that they
+can be easily raised if that's what you want::
+
+    if node.emcy.active:
+        raise node.emcy.active[-1]
 
 
 API
diff --git a/doc/od.rst b/doc/od.rst
@@ -136,8 +136,5 @@ API
       an underscore + the subindex in hex format.
 
 
-Exceptions
-~~~~~~~~~~
-
 .. autoexception:: canopen.ObjectDictionaryError
    :members:
diff --git a/doc/sdo.rst b/doc/sdo.rst
@@ -175,9 +175,6 @@ API
        actual length of the array.
 
 
-Exceptions
-~~~~~~~~~~
-
 .. autoexception:: canopen.SdoAbortedError
     :members:
 
