diff --git a/comms/Makefile b/comms/Makefile
--- a/comms/Makefile
+++ b/comms/Makefile
@@ -148,6 +148,7 @@
     SUBDIR += py-pyocd-pemicro
     SUBDIR += py-pyserial
     SUBDIR += py-pyserial-asyncio
+    SUBDIR += py-sdm_modbus
     SUBDIR += py-spsdk
     SUBDIR += py-streamdeck
     SUBDIR += py-xmodem
diff --git a/comms/py-sdm_modbus/Makefile b/comms/py-sdm_modbus/Makefile
new file mode 100644
--- /dev/null
+++ b/comms/py-sdm_modbus/Makefile
@@ -0,0 +1,24 @@
+PORTNAME=	sdm_modbus
+DISTVERSION=	0.6.1
+CATEGORIES=	comms python
+MASTER_SITES=	PYPI
+PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
+
+MAINTAINER=	kiwi@FreeBSD.org
+COMMENT=	Library for Eastron SDM single or three phase kWh meters
+WWW=		https://github.com/nmakel/sdm_modbus
+
+LICENSE=	MIT
+
+RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pymodbus>=2.0:comms/py-pymodbus@${PY_FLAVOR}
+
+USES=		python
+USE_PYTHON=	distutils autoplist
+
+DOCSDIR=	${PREFIX}/share/doc/${PKGNAMEPREFIX}${PORTNAME}
+
+NO_ARCH=	yes
+
+PORTDOCS=	*
+
+.include <bsd.port.mk>
diff --git a/comms/py-sdm_modbus/distinfo b/comms/py-sdm_modbus/distinfo
new file mode 100644
--- /dev/null
+++ b/comms/py-sdm_modbus/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1666525980
+SHA256 (sdm_modbus-0.6.1.tar.gz) = 3c3a36100ab54df8998ec788cc69904914137ba443094e827b219ba7ab0ea4dd
+SIZE (sdm_modbus-0.6.1.tar.gz) = 13928
diff --git a/comms/py-sdm_modbus/pkg-descr b/comms/py-sdm_modbus/pkg-descr
new file mode 100644
--- /dev/null
+++ b/comms/py-sdm_modbus/pkg-descr
@@ -0,0 +1,2 @@
+Library that collects data from Eastron SDM single and three phase kWh
+meters over Modbus RTU or Modbus TCP.