diff --git a/CODEOWNERS b/CODEOWNERS
index ace489c4bc9..1f67b3c3411 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -158,6 +158,7 @@
/bundles/org.openhab.binding.modbus/ @ssalonen
/bundles/org.openhab.binding.modbus.e3dc/ @weymann
/bundles/org.openhab.binding.modbus.helioseasycontrols/ @bern77
+/bundles/org.openhab.binding.modbus.sbc/ @fwolter
/bundles/org.openhab.binding.modbus.stiebeleltron/ @pail23
/bundles/org.openhab.binding.modbus.studer/ @giovannimirulla
/bundles/org.openhab.binding.modbus.sunspec/ @mrbig
diff --git a/bom/openhab-addons/pom.xml b/bom/openhab-addons/pom.xml
index 78f2ff07eb1..8569f1c6e39 100644
--- a/bom/openhab-addons/pom.xml
+++ b/bom/openhab-addons/pom.xml
@@ -776,6 +776,11 @@
org.openhab.binding.modbus.helioseasycontrols
${project.version}
+
+ org.openhab.addons.bundles
+ org.openhab.binding.modbus.sbc
+ ${project.version}
+
org.openhab.addons.bundles
org.openhab.binding.modbus.stiebeleltron
diff --git a/bundles/org.openhab.binding.modbus.sbc/NOTICE b/bundles/org.openhab.binding.modbus.sbc/NOTICE
new file mode 100644
index 00000000000..38d625e3492
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/NOTICE
@@ -0,0 +1,13 @@
+This content is produced and maintained by the openHAB project.
+
+* Project home: https://www.openhab.org
+
+== Declared Project Licenses
+
+This program and the accompanying materials are made available under the terms
+of the Eclipse Public License 2.0 which is available at
+https://www.eclipse.org/legal/epl-2.0/.
+
+== Source Code
+
+https://github.com/openhab/openhab-addons
diff --git a/bundles/org.openhab.binding.modbus.sbc/README.md b/bundles/org.openhab.binding.modbus.sbc/README.md
new file mode 100644
index 00000000000..d1d75f35353
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/README.md
@@ -0,0 +1,74 @@
+# Modbus Saia Burgess Controls Binding
+
+This binding interfaces the energy meter series ALD1 by Saia Burgess Controls (SBC) via Modbus.
+
+## Supported Things
+
+The following Things are supported:
+
+- `ald1Unidirectional`: 1-phase 32A one-way energy meter ALD1D5FD00A3A00
+- `ald1Bidirectional`: 1-phase 32A two-way energy meter ALD1B5FD00A3A00
+
+## Discovery
+
+This binding does not support discovery.
+
+## Thing Configuration
+
+The following configuration parameter applys to `ald1Unidirectional` and `ald1Bidirectional`.
+
+| Name | Description | Type | Required |
+|---------------|------------------------------------------|---------|----------|
+| pollInterval | Time between polling the data in ms | Integer | yes |
+
+The Thing needs a Modbus serial slave Bridge to operate.
+
+One of the following serial settings need to be configured in the Bridge:
+
+- 9600 baud, 2 stop bit, no parity
+- 9600 baud, 1 stop bit, even parity
+- 9600 baud, 1 stop bit, odd parity
+
+## Channels
+
+The following Channels apply to `ald1Unidirectional` and `ald1Bidirectional` if not stated otherwise.
+
+| Name | Type | Description |
+|---------------------|--------------------------|---------------------------------------------------------------|
+| total_energy | Number:Energy | Energy Total |
+| partial_energy | Number:Energy | Energy Counter Resettable (only unidirectional meter) |
+| feeding_back_energy | Number:Energy | Energy Feeding Back (only bidirectional meter) |
+| voltage | Number:ElectricPotential | Effective Voltage |
+| current | Number:ElectricCurrent | Effective Current |
+| active_power | Number:Power | Effective Active Power (negative numbers mean feeding back) |
+| reactive_power | Number:Power | Effective Reactive Power (negative numbers mean feeding back) |
+| power_factor | Number:Dimensionless | Power Factor |
+
+## Full Example
+
+### .items
+
+```
+Number:Energy ALD1_Total_Energy "[%.2f %unit%]" {channel="modbus:ald1Bidirectional:8b6e85623b:total_energy"}
+Number:Energy ALD1_Feeding_Back_Energy "[%.2f %unit%]" {channel="modbus:ald1Bidirectional:8b6e85623b:feeding_back_energy"}
+Number:ElectricPotential ALD1_Voltage "[%d %unit%]" {channel="modbus:ald1Bidirectional:8b6e85623b:voltage"}
+Number:ElectricCurrent ALD1_Current "[%.1f %unit%]" {channel="modbus:ald1Bidirectional:8b6e85623b:current"}
+Number:Power ALD1_Active_Power "[%.2f %unit%]" {channel="modbus:ald1Bidirectional:8b6e85623b:active_power"}
+Number:Power ALD1_Reactive_Power "[%.2f %unit%]" {channel="modbus:ald1Bidirectional:8b6e85623b:reactive_power"}
+Number:Dimensionless ALD1_Power_Factor "[%.2f]" {channel="modbus:ald1Bidirectional:8b6e85623b:power_factor"}
+```
+
+### .sitemap
+
+```
+sitemap ald1 label="ALD1 Energy Meter"
+{
+ Default item=ALD1_Total_Energy label="Total Energy"
+ Default item=ALD1_Feeding_Back_Energy label="Feeding Back Energy"
+ Default item=ALD1_Voltage label="Voltage"
+ Default item=ALD1_Current label="Current"
+ Default item=ALD1_Active_Power label="Active Power"
+ Default item=ALD1_Reactive_Power label="Reactive Power"
+ Default item=ALD1_Power_Factor label="Power Factor"
+}
+```
diff --git a/bundles/org.openhab.binding.modbus.sbc/pom.xml b/bundles/org.openhab.binding.modbus.sbc/pom.xml
new file mode 100644
index 00000000000..7da99d2601a
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/pom.xml
@@ -0,0 +1,26 @@
+
+
+
+ 4.0.0
+
+
+ org.openhab.addons.bundles
+ org.openhab.addons.reactor.bundles
+ 3.1.0-SNAPSHOT
+
+
+ org.openhab.binding.modbus.sbc
+
+ openHAB Add-ons :: Bundles :: Modbus SBC Binding
+
+
+
+ org.openhab.addons.bundles
+ org.openhab.binding.modbus
+ ${project.version}
+ provided
+
+
+
+
diff --git a/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/ALD1Configuration.java b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/ALD1Configuration.java
new file mode 100644
index 00000000000..d69e491e3b1
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/ALD1Configuration.java
@@ -0,0 +1,25 @@
+/**
+ * Copyright (c) 2010-2021 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.modbus.sbc.internal;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+
+/**
+ * The {@link ALD1Configuration} class contains fields mapping thing configuration parameters.
+ *
+ * @author Fabian Wolter - Initial contribution
+ */
+@NonNullByDefault
+public class ALD1Configuration {
+ public int pollInterval;
+}
diff --git a/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/ALD1Handler.java b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/ALD1Handler.java
new file mode 100644
index 00000000000..6952cf35efc
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/ALD1Handler.java
@@ -0,0 +1,100 @@
+/**
+ * Copyright (c) 2010-2021 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.modbus.sbc.internal;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.binding.modbus.handler.BaseModbusThingHandler;
+import org.openhab.core.io.transport.modbus.AsyncModbusFailure;
+import org.openhab.core.io.transport.modbus.AsyncModbusReadResult;
+import org.openhab.core.io.transport.modbus.ModbusBitUtilities;
+import org.openhab.core.io.transport.modbus.ModbusReadFunctionCode;
+import org.openhab.core.io.transport.modbus.ModbusReadRequestBlueprint;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.thing.ChannelUID;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingStatus;
+import org.openhab.core.thing.ThingStatusDetail;
+import org.openhab.core.types.Command;
+import org.openhab.core.types.RefreshType;
+
+/**
+ * The {@link ALD1Handler} is responsible for handling commands, which are
+ * sent to one of the channels.
+ *
+ * @author Fabian Wolter - Initial contribution
+ */
+@NonNullByDefault
+public class ALD1Handler extends BaseModbusThingHandler {
+ private static final int FIRST_READ_REGISTER = 28;
+ private static final int READ_LENGTH = 13;
+ private static final int TRIES = 1;
+ private ALD1Configuration config = new ALD1Configuration();
+ private @Nullable ModbusReadRequestBlueprint blueprint;
+
+ public ALD1Handler(Thing thing) {
+ super(thing);
+ }
+
+ @Override
+ public void handleCommand(ChannelUID channelUID, Command command) {
+ ModbusReadRequestBlueprint localBlueprint = blueprint;
+ if (command instanceof RefreshType && localBlueprint != null) {
+ submitOneTimePoll(localBlueprint, this::readSuccessful, this::readError);
+ }
+ }
+
+ @Override
+ public void modbusInitialize() {
+ config = getConfigAs(ALD1Configuration.class);
+
+ if (config.pollInterval <= 0) {
+ updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR,
+ "Invalid poll interval: " + config.pollInterval);
+ return;
+ }
+
+ ModbusReadRequestBlueprint localBlueprint = blueprint = new ModbusReadRequestBlueprint(getSlaveId(),
+ ModbusReadFunctionCode.READ_MULTIPLE_REGISTERS, FIRST_READ_REGISTER - 1, READ_LENGTH, TRIES);
+
+ updateStatus(ThingStatus.UNKNOWN);
+
+ registerRegularPoll(localBlueprint, config.pollInterval, 0, this::readSuccessful, this::readError);
+ }
+
+ private void readSuccessful(AsyncModbusReadResult result) {
+ result.getRegisters().ifPresent(registers -> {
+ if (getThing().getStatus() != ThingStatus.ONLINE) {
+ updateStatus(ThingStatus.ONLINE);
+ }
+
+ for (ALD1Registers channel : ALD1Registers.values()) {
+ int index = channel.getRegisterNumber() - FIRST_READ_REGISTER;
+
+ ModbusBitUtilities.extractStateFromRegisters(registers, index, channel.getType())
+ .map(d -> d.toBigDecimal().multiply(channel.getMultiplier()))
+ .map(bigDecimal -> new QuantityType<>(bigDecimal, channel.getUnit()))
+ .ifPresent(v -> updateState(createChannelUid(channel), v));
+ }
+ });
+ }
+
+ private void readError(AsyncModbusFailure error) {
+ updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.COMMUNICATION_ERROR,
+ "Failed to retrieve data: " + error.getCause().getMessage());
+ }
+
+ private ChannelUID createChannelUid(ALD1Registers channel) {
+ return new ChannelUID(thing.getUID(), channel.toString().toLowerCase());
+ }
+}
diff --git a/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/ALD1Registers.java b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/ALD1Registers.java
new file mode 100644
index 00000000000..077b6eb4c38
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/ALD1Registers.java
@@ -0,0 +1,70 @@
+/**
+ * Copyright (c) 2010-2021 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.modbus.sbc.internal;
+
+import static org.openhab.core.io.transport.modbus.ModbusConstants.ValueType.*;
+
+import java.math.BigDecimal;
+
+import javax.measure.Unit;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.core.io.transport.modbus.ModbusConstants;
+import org.openhab.core.io.transport.modbus.ModbusConstants.ValueType;
+import org.openhab.core.library.unit.Units;
+
+/**
+ * The {@link ALD1Registers} is responsible for defining Modbus registers and their units.
+ *
+ * @author Fabian Wolter - Initial contribution
+ */
+@NonNullByDefault
+public enum ALD1Registers {
+ // the following register numbers are 1-based. They need to be converted before sending them on the wire.
+ TOTAL_ENERGY(0.01f, 28, UINT32, Units.KILOWATT_HOUR),
+ PARTIAL_ENERGY(0.01f, 30, UINT32, Units.KILOWATT_HOUR), // only unidirectional meters
+ FEEDING_BACK_ENERGY(0.01f, 30, UINT32, Units.KILOWATT_HOUR), // only bidirectional meters
+ VOLTAGE(1, 36, UINT16, Units.VOLT),
+ CURRENT(0.1f, 37, UINT16, Units.AMPERE),
+ ACTIVE_POWER(10, 38, INT16, Units.WATT),
+ REACTIVE_POWER(10, 39, INT16, Units.VAR),
+ POWER_FACTOR(0.01f, 40, INT16, Units.ONE);
+
+ private BigDecimal multiplier;
+ private int registerNumber;
+ private ModbusConstants.ValueType type;
+ private Unit> unit;
+
+ private ALD1Registers(float multiplier, int registerNumber, ValueType type, Unit> unit) {
+ this.multiplier = new BigDecimal(multiplier);
+ this.registerNumber = registerNumber;
+ this.type = type;
+ this.unit = unit;
+ }
+
+ public Unit> getUnit() {
+ return unit;
+ }
+
+ public BigDecimal getMultiplier() {
+ return multiplier;
+ }
+
+ public int getRegisterNumber() {
+ return registerNumber;
+ }
+
+ public ModbusConstants.ValueType getType() {
+ return type;
+ }
+}
diff --git a/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/SBCBindingConstants.java b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/SBCBindingConstants.java
new file mode 100644
index 00000000000..8b00a41eff3
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/SBCBindingConstants.java
@@ -0,0 +1,31 @@
+/**
+ * Copyright (c) 2010-2021 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.modbus.sbc.internal;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.binding.modbus.ModbusBindingConstants;
+import org.openhab.core.thing.ThingTypeUID;
+
+/**
+ * The {@link SBCBindingConstants} class defines common constants, which are
+ * used across the whole binding.
+ *
+ * @author Fabian Wolter - Initial contribution
+ */
+@NonNullByDefault
+public class SBCBindingConstants {
+ public static final ThingTypeUID THING_TYPE_ALD1_UNIDIRECTIONAL = new ThingTypeUID(
+ ModbusBindingConstants.BINDING_ID, "ald1Unidirectional");
+ public static final ThingTypeUID THING_TYPE_ALD1_BIDIRECTIONAL = new ThingTypeUID(ModbusBindingConstants.BINDING_ID,
+ "ald1Bidirectional");
+}
diff --git a/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/SBCHandlerFactory.java b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/SBCHandlerFactory.java
new file mode 100644
index 00000000000..a7410861aa2
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/src/main/java/org/openhab/binding/modbus/sbc/internal/SBCHandlerFactory.java
@@ -0,0 +1,56 @@
+/**
+ * Copyright (c) 2010-2021 Contributors to the openHAB project
+ *
+ * See the NOTICE file(s) distributed with this work for additional
+ * information.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package org.openhab.binding.modbus.sbc.internal;
+
+import static org.openhab.binding.modbus.sbc.internal.SBCBindingConstants.*;
+
+import java.util.Set;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.core.thing.Thing;
+import org.openhab.core.thing.ThingTypeUID;
+import org.openhab.core.thing.binding.BaseThingHandlerFactory;
+import org.openhab.core.thing.binding.ThingHandler;
+import org.openhab.core.thing.binding.ThingHandlerFactory;
+import org.osgi.service.component.annotations.Component;
+
+/**
+ * The {@link SBCHandlerFactory} is responsible for creating things and thing
+ * handlers.
+ *
+ * @author Fabian Wolter - Initial contribution
+ */
+@NonNullByDefault
+@Component(configurationPid = "binding.sbc", service = ThingHandlerFactory.class)
+public class SBCHandlerFactory extends BaseThingHandlerFactory {
+
+ private static final Set SUPPORTED_THING_TYPES_UIDS = Set.of(THING_TYPE_ALD1_UNIDIRECTIONAL,
+ THING_TYPE_ALD1_BIDIRECTIONAL);
+
+ @Override
+ public boolean supportsThingType(ThingTypeUID thingTypeUID) {
+ return SUPPORTED_THING_TYPES_UIDS.contains(thingTypeUID);
+ }
+
+ @Override
+ protected @Nullable ThingHandler createHandler(Thing thing) {
+ ThingTypeUID thingTypeUID = thing.getThingTypeUID();
+
+ if (THING_TYPE_ALD1_UNIDIRECTIONAL.equals(thingTypeUID) || THING_TYPE_ALD1_BIDIRECTIONAL.equals(thingTypeUID)) {
+ return new ALD1Handler(thing);
+ }
+
+ return null;
+ }
+}
diff --git a/bundles/org.openhab.binding.modbus.sbc/src/main/resources/OH-INF/config/config.xml b/bundles/org.openhab.binding.modbus.sbc/src/main/resources/OH-INF/config/config.xml
new file mode 100644
index 00000000000..001cf9136bc
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/src/main/resources/OH-INF/config/config.xml
@@ -0,0 +1,15 @@
+
+
+
+
+
+
+ Time between polling the data in ms.
+ 5000
+
+
+
+
diff --git a/bundles/org.openhab.binding.modbus.sbc/src/main/resources/OH-INF/thing/thing-types.xml b/bundles/org.openhab.binding.modbus.sbc/src/main/resources/OH-INF/thing/thing-types.xml
new file mode 100644
index 00000000000..d62cd11cb7a
--- /dev/null
+++ b/bundles/org.openhab.binding.modbus.sbc/src/main/resources/OH-INF/thing/thing-types.xml
@@ -0,0 +1,100 @@
+
+
+
+
+
+
+
+
+
+
+ Unidirectional one-phase energy meter connected via Modbus.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Bidirectional one-phase energy meter connected via Modbus.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Number:Energy
+
+
+
+
+
+ Number:Energy
+
+
+
+
+
+ Number:Energy
+
+
+
+
+
+ Number:ElectricPotential
+
+
+
+
+
+ Number:ElectricCurrent
+
+
+
+
+
+ Number:Power
+
+ Negative numbers mean feeding back
+
+
+
+
+ Number:Power
+
+ Negative numbers mean feeding back
+
+
+
+
+ Number:Dimensionless
+
+
+
+
diff --git a/bundles/pom.xml b/bundles/pom.xml
index 8915314b721..9722fb7f97c 100644
--- a/bundles/pom.xml
+++ b/bundles/pom.xml
@@ -188,6 +188,7 @@
org.openhab.binding.minecraft
org.openhab.binding.modbus
org.openhab.binding.modbus.e3dc
+ org.openhab.binding.modbus.sbc
org.openhab.binding.modbus.studer
org.openhab.binding.modbus.sunspec
org.openhab.binding.modbus.stiebeleltron
diff --git a/features/openhab-addons/src/main/resources/footer.xml b/features/openhab-addons/src/main/resources/footer.xml
index 291d0536502..d38fbdf3ff2 100644
--- a/features/openhab-addons/src/main/resources/footer.xml
+++ b/features/openhab-addons/src/main/resources/footer.xml
@@ -31,6 +31,7 @@
mvn:org.openhab.addons.bundles/org.openhab.binding.modbus/${project.version}
mvn:org.openhab.addons.bundles/org.openhab.binding.modbus.e3dc/${project.version}
mvn:org.openhab.addons.bundles/org.openhab.binding.modbus.helioseasycontrols/${project.version}
+ mvn:org.openhab.addons.bundles/org.openhab.binding.modbus.sbc/${project.version}
mvn:org.openhab.addons.bundles/org.openhab.binding.modbus.stiebeleltron/${project.version}
mvn:org.openhab.addons.bundles/org.openhab.binding.modbus.studer/${project.version}
mvn:org.openhab.addons.bundles/org.openhab.binding.modbus.sunspec/${project.version}