diff --git a/application/src/main/java/org/thingsboard/server/service/edge/rpc/processor/telemetry/TelemetryEdgeProcessor.java b/application/src/main/java/org/thingsboard/server/service/edge/rpc/processor/telemetry/TelemetryEdgeProcessor.java
index 861d766638..647994dcd9 100644
--- a/application/src/main/java/org/thingsboard/server/service/edge/rpc/processor/telemetry/TelemetryEdgeProcessor.java
+++ b/application/src/main/java/org/thingsboard/server/service/edge/rpc/processor/telemetry/TelemetryEdgeProcessor.java
@@ -37,6 +37,12 @@ public class TelemetryEdgeProcessor extends BaseTelemetryProcessor {
     }
 
     public DownlinkMsg convertTelemetryEventToDownlink(EdgeEvent edgeEvent) throws JsonProcessingException {
+        if (edgeEvent.getBody() != null && edgeEvent.getBody().toString().length() > 1000) {
+            log.debug("[{}][{}][{}] Conversion to a DownlinkMsg telemetry event failed due to a size limit violation. " +
+                            "Current size is {}, but the limit is 1000. {}", edgeEvent.getTenantId(), edgeEvent.getEdgeId(),
+                    edgeEvent.getEntityId(), edgeEvent.getBody().toString().length(), edgeEvent.getBody().toString().substring(0, 100));
+            return null;
+        }
         EntityType entityType = EntityType.valueOf(edgeEvent.getType().name());
         EntityDataProto entityDataProto = convertTelemetryEventToEntityDataProto(
                 edgeEvent.getTenantId(), entityType, edgeEvent.getEntityId(),
diff --git a/application/src/test/java/org/thingsboard/server/service/edge/rpc/processor/telemetry/TelemetryEdgeProcessorTest.java b/application/src/test/java/org/thingsboard/server/service/edge/rpc/processor/telemetry/TelemetryEdgeProcessorTest.java
new file mode 100644
index 0000000000..9dbfa6ae45
--- /dev/null
+++ b/application/src/test/java/org/thingsboard/server/service/edge/rpc/processor/telemetry/TelemetryEdgeProcessorTest.java
@@ -0,0 +1,42 @@
+/**
+ * Copyright © 2016-2023 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.service.edge.rpc.processor.telemetry;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import lombok.extern.slf4j.Slf4j;
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.thingsboard.common.util.JacksonUtil;
+import org.thingsboard.server.common.data.StringUtils;
+import org.thingsboard.server.common.data.edge.EdgeEvent;
+import org.thingsboard.server.gen.edge.v1.DownlinkMsg;
+
+@Slf4j
+@RunWith(MockitoJUnitRunner.class)
+public class TelemetryEdgeProcessorTest {
+
+    @Test
+    public void testConvert_maxSizeLimit() throws Exception {
+        EdgeEvent edgeEvent = new EdgeEvent();
+        ObjectNode body = JacksonUtil.newObjectNode();
+        body.put("value", StringUtils.randomAlphanumeric(10000));
+        edgeEvent.setBody(body);
+        DownlinkMsg downlinkMsg = new TelemetryEdgeProcessor().convertTelemetryEventToDownlink(edgeEvent);
+        Assert.assertNull(downlinkMsg);
+    }
+}