diff --git a/DeviceAdapters/Makefile.am b/DeviceAdapters/Makefile.am
index c12e814559..8e4a61aa73 100644
--- a/DeviceAdapters/Makefile.am
+++ b/DeviceAdapters/Makefile.am
@@ -26,6 +26,9 @@ endif
 if BUILD_ITC
    ITC = ITC18
 endif
+if BUILD_MODBUS
+   MODBUS = Modbus
+endif
 if BUILD_OPENCV
    OPENCVGRABBER = OpenCVgrabber
 endif
@@ -69,6 +72,7 @@ SUBDIRS = \
 	$(ITC) \
 	$(NIDAQ) \
 	$(OPENCVGRABBER) \
+	$(MODBUS) \
 	$(PVCAM) \
 	$(QCAM) \
 	$(SCION) \
diff --git a/DeviceAdapters/configure.ac b/DeviceAdapters/configure.ac
index 6f963dc4f8..2b796c361f 100644
--- a/DeviceAdapters/configure.ac
+++ b/DeviceAdapters/configure.ac
@@ -82,6 +82,25 @@ AS_IF([test "x$want_hidapi" != xno],
 AM_CONDITIONAL([BUILD_HID], [test "x$use_hidapi" = xyes])
 
 
+# Check for libmodbus
+MM_ARG_WITH_OPTIONAL_LIB([libmodbus], [modbus], [MODBUS])
+AS_IF([test "x$want_modbus" != xno],
+[
+   MM_LIB_MODBUS([$MODBUS_PREFIX],
+   [
+      use_modbus=yes
+   ],
+   [
+      use_modbus=no
+      AS_IF([test "x$want_modbus" = xyes],
+            [MM_MSG_OPTIONAL_LIB_FAILURE([libmodbus], [modbus])])
+   ])
+],
+[use_modbus=no])
+
+AM_CONDITIONAL([BUILD_MODBUS], [test "x$use_modbus" = xyes])
+
+
 # Only build PVCAM if header files present.
 AC_MSG_CHECKING(for Pvcam)
 for dir in /usr/include/pvcam /Library/Frameworks/PVCAM.framework/Headers
@@ -441,6 +460,7 @@ m4_define([device_adapter_dirs], [m4_strip([
    Marzhauser-LStep
    MarzhauserLStepOld
    MicroPoint
+   MODBUS
    Motic_mac
    Neos
    NewportCONEX
@@ -526,6 +546,9 @@ echo "m4_text_wrap([$use_freeimageplus],
 echo "m4_text_wrap([$use_hidapi],
                    [                                            ],
                    [    Build with HIDAPI:                      ])"
+echo "m4_text_wrap([$use_modbus],
+                   [                                            ],
+                   [    Build with Modbus:                      ])"
 echo "m4_text_wrap([$use_libdc1394],
                    [                                            ],
                    [    Build with libdc1394:                   ])"
diff --git a/m4/mm_libs.m4 b/m4/mm_libs.m4
index f6be52a321..37eb8a96d9 100644
--- a/m4/mm_libs.m4
+++ b/m4/mm_libs.m4
@@ -39,6 +39,18 @@ AC_DEFUN([MM_LIB_GPHOTO2], [
       [$2], [$3])
 ])
 
+# Check for Modbus library
+#
+# MM_LIB_MODBUS([MODBUS prefix], [action-if-found], [action-if-not-found])
+#
+# Defines precious variables MODBUS_CPPFLAGS, MODBUS_CFLAGS, MODBUS_LDFLAGS,
+# MODBUS_LIS.
+AC_DEFUN([MM_LIB_MODBUS], [
+   MM_LIB_WITH_PKG_CONFIG([MODBUS], [libmodbus], [libmodbus >= 3.1.4], [],
+      [$1], [-lmodbus], [modbus/modbus.h], [modbus_connect],
+      [$2], [$3])
+])
+
 
 # Check for HIDAPI library
 #