Enapter
diff --git a/examples/vucm/ats3/README.md b/examples/vucm/ats3/README.md
@@ -0,0 +1,19 @@
+## Setup
+
+- Install Docker or Docker Desktop
+- Create Standalone Device on your site in Enapter Cloud
+- Generate config for your Standalone device
+- Copy it to `env.txt` file as `ENAPTER_VUCM_BLOB` value
+- Verify that your LabVIEW program sends data as JSON over TCP connection. Only one message per connection is allowed.
+- Take number of TCP port, to which  data is being sent from LabVIEW and set it to `LISTEN_TCP_PORT` variable in `env.list`.
+
+## Run
+- Copy `*_run.sh` script to directory with `env.txt`
+- Open Terminal in Docker Desktop. Change working directory to the same as in previous step.
+-  `./*_run.sh`
+
+
+## Development
+1. Run `*_build.sh`
+2. `docker push  ...`
+2. Notify colleagues to pull the latest image 
diff --git a/examples/vucm/ats3/ats3.Dockerfile b/examples/vucm/ats3/ats3.Dockerfile
@@ -0,0 +1,13 @@
+FROM python:3.11-alpine3.22
+
+WORKDIR /app
+
+RUN apk add build-base
+
+RUN python -m venv .venv
+COPY requirements.txt requirements.txt
+RUN .venv/bin/pip install -r requirements.txt
+
+COPY script.py script.py
+
+CMD [".venv/bin/python", "script.py"]
diff --git a/examples/vucm/ats3/backup.Dockerfile b/examples/vucm/ats3/backup.Dockerfile
@@ -0,0 +1,14 @@
+FROM python:3.11-alpine3.22
+
+WORKDIR /app
+
+RUN apk add build-base
+
+RUN python -m venv .venv
+COPY requirements.txt requirements.txt
+RUN .venv/bin/pip install -r requirements.txt
+
+COPY backup.py backup.py
+COPY files/ files/
+
+CMD [".venv/bin/python", "backup.py"]
diff --git a/examples/vucm/ats3/backup.py b/examples/vucm/ats3/backup.py
@@ -0,0 +1,76 @@
+import asyncio
+import csv
+import functools
+import glob
+import os
+from datetime import datetime
+from zoneinfo import ZoneInfo
+
+import enapter
+
+
+async def main():
+    csv_files = sorted(glob.glob("files/*.csv"))
+    print("files", csv_files)
+    device_factory = functools.partial(
+        CSVBackup, csv_files=csv_files, timezone=os.getenv("TIMEZONE", "Europe/Berlin"),)
+    await enapter.vucm.run(device_factory)
+
+
+class CSVBackup(enapter.vucm.Device):
+    def __init__(self, csv_files, timezone, **kwargs):
+        super().__init__(**kwargs)
+        self.csv_files = csv_files
+        self.timezone = timezone
+
+    async def task_send_csv_telemetry(self):
+        """
+        Read CSV file line by line, send each row as telemetry every second.
+        """
+        read_csv_files = 0
+        while True:
+            if read_csv_files == len(self.csv_files):
+                break
+            for f in self.csv_files:
+                await self.log.info(f"reading file: {f}")
+                try:
+                    with open(f, newline="") as csv_file:
+                        reader = csv.DictReader(csv_file)
+                        headers = reader.fieldnames or []
+                        for row in reader:
+                            telemetry = {}
+                            telemetry["status"] = "ok"
+                            for key in headers:
+                                value = row.get(key)
+                                if key in ("Date", "Time"):
+                                    telemetry[key] = value
+                                else:
+                                    telemetry[key] = float(value) if value != "" else None
+                                await self.log.info(f"read {key}: {telemetry[key]}")
+                            self._add_timestamp_if_present(telemetry)
+                            await self.send_telemetry(telemetry)
+                            await asyncio.sleep(1)
+                except Exception as e:
+                    await self.log.error(f"Failed to read CSV: {e}")
+                    await asyncio.sleep(5)
+                finally:
+                    read_csv_files += 1
+                    await self.log.info(f"finished reading file: {f}")
+            break
+        await self.log.info(f"all read")
+
+    def _add_timestamp_if_present(self, telemetry):
+        """If 'Date' and 'Time' are present, combine and convert to timestamp."""
+        date_str = telemetry.get("Date")
+        time_str = telemetry.get("Time")
+        if date_str and time_str:
+            dt_str = f"{date_str} {time_str}"
+            naive_dt = datetime.strptime(dt_str, "%d/%m/%Y %H:%M:%S")
+            tz_aware_dt = naive_dt.replace(tzinfo=ZoneInfo(self.timezone))
+            telemetry["timestamp"] = int(tz_aware_dt.timestamp())
+            telemetry.pop("Date")
+            telemetry.pop("Time") 
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
diff --git a/examples/vucm/ats3/backup_build.sh b/examples/vucm/ats3/backup_build.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+IMAGE_TAG="tyenap/ats3-backup:latest"
+SCRIPT_DIR="$(realpath "$(dirname "$0")")"
+
+docker build --file backup.Dockerfile --tag "$IMAGE_TAG" "$SCRIPT_DIR"
diff --git a/examples/vucm/ats3/backup_run.sh b/examples/vucm/ats3/backup_run.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+IMAGE_TAG="tyenap/ats3-backup:latest"
+
+docker run --rm -it \
+	--name "ats3" \
+	--network host \
+	--env-file env.txt \
+	-e ENAPTER_LOG_LEVEL="${ENAPTER_LOG_LEVEL:-info}" \
+	"$IMAGE_TAG"
diff --git a/examples/vucm/ats3/docker_build.sh b/examples/vucm/ats3/docker_build.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+IMAGE_TAG="tyenap/ats3:latest"
+SCRIPT_DIR="$(realpath "$(dirname "$0")")"
+
+docker build --file ats3.Dockerfile --tag "$IMAGE_TAG" "$SCRIPT_DIR"
diff --git a/examples/vucm/ats3/docker_run.sh b/examples/vucm/ats3/docker_run.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+IMAGE_TAG="tyenap/ats3:latest"
+
+docker run --rm -it \
+	--name "ni-daq" \
+	--network host \
+	--env-file env.txt \
+	-e ENAPTER_LOG_LEVEL="${ENAPTER_LOG_LEVEL:-info}" \
+	"$IMAGE_TAG"
diff --git a/examples/vucm/ats3/manifest.yml b/examples/vucm/ats3/manifest.yml
@@ -0,0 +1,104 @@
+blueprint_spec: "device/1.0"
+
+display_name: ATS3 stack
+
+communication_module:
+  product: ENP-VIRTUAL
+
+properties:
+  vendor:
+    display_name: Vendor
+    type: string
+  model:
+    display_name: Model
+    type: string
+
+alerts:
+  parse_error:
+    display_name: Data processing failed
+    severity: error							
+telemetry:
+  status:
+    display_name: Status
+    type: string
+    enum:
+      - ok
+      - error
+      - no_data
+  T1:
+    display_name: T1
+    type: float
+  T2:
+    display_name: T2
+    type: float
+  T3:
+    display_name: T2
+    type: float
+  Current:
+    display_name: Current
+    type: float
+  PSU:
+    display_name: Current
+    type: float
+  P1:
+    display_name: P1
+    type: float
+  P2:
+    display_name: P2
+    type: float
+  P3:
+    display_name: P3
+    type: float
+  Flow:
+    display_name: Flow
+    type: float
+  Conductivity:
+    display_name: Conductivity
+    type: float
+  MFMH2:
+    display_name: MFMH2
+    type: float
+  Theoretical_h2:
+    display_name: MFMH2
+    type: float
+  MCM02:
+    display_name: MCM02
+    type: float
+  Refilling:
+    display_name: Refilling
+    type: float
+  PC:
+    display_name: PC
+    type: float
+  C1:
+    display_name: Cell 1
+    type: float
+  C2:
+    display_name: Cell 2
+    type: float
+  C3:
+    display_name: Cell 3
+    type: float
+  C4:
+    display_name: Cell 4
+    type: float
+  C5:
+    display_name: Cell 5
+    type: float
+  C6:
+    display_name: Cell 6
+    type: float
+  C7:
+    display_name: Cell 7
+    type: float
+  C8:
+    display_name: Cell 8
+    type: float
+  C9:
+    display_name: Cell 9
+    type: float
+  C10:
+    display_name: Cell 10
+    type: float
+
+commands: {}
diff --git a/examples/vucm/ats3/requirements.txt b/examples/vucm/ats3/requirements.txt
@@ -0,0 +1,2 @@
+enapter==0.9.2
+python-dateutil==2.8.2
diff --git a/examples/vucm/ats3/script.py b/examples/vucm/ats3/script.py
@@ -0,0 +1,100 @@
+import asyncio
+import functools
+import json
+import os
+import socket
+from datetime import datetime
+from zoneinfo import ZoneInfo
+
+import enapter
+
+
+async def main():
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
+        sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
+        sock.bind(("127.0.0.1", int(os.environ["LISTEN_TCP_PORT"])))
+        sock.listen()
+        sock.setblocking(False)
+        device_factory = functools.partial(
+            ATS3Stack,
+            socket=sock,
+            timezone=os.getenv("TIMEZONE", "Europe/Berlin"),
+        )
+        await enapter.vucm.run(device_factory)
+
+
+class ATS3Stack(enapter.vucm.Device):
+    def __init__(self, socket, timezone, **kwargs):
+        super().__init__(**kwargs)
+        self.socket = socket
+        self.timezone = timezone
+
+    async def task_accept_conns(self):
+        """
+        Accept incoming TCP connections in a loop and spawn a handler task for each connection.
+        """
+        async with asyncio.TaskGroup() as tg:
+            while True:
+                conn, addr = await asyncio.get_event_loop().sock_accept(self.socket)
+                tg.create_task(self.handle_conn(conn, addr))
+
+    async def handle_conn(self, conn, addr):
+        """
+        Handle a single TCP connection: read data with a timeout, process and send telemetry.
+        """
+        data = bytearray()
+        try:
+            while True:
+                try:
+                    async with asyncio.timeout(5):
+                        chunk = await asyncio.get_event_loop().sock_recv(conn, 1024)
+                except TimeoutError:
+                    await self.log.error(f"{addr}: connection timeout", True)
+                    return
+                if chunk:
+                    data.extend(chunk)
+                    continue
+                await self.log.debug(f"{addr}: read data: {data}")
+                await self._process_and_send_telemetry(data)
+                return
+        finally:
+            conn.close()
+
+    async def task_properties_sender(self):
+        """Periodically send device properties."""
+        while True:
+            await self.send_properties(
+                {"vendor": "National Instruments", "model": "cDAQ 9178"}
+            )
+            await asyncio.sleep(10)
+
+    async def _process_and_send_telemetry(self, data):
+        """Parse, enrich, and send telemetry data."""
+        telemetry = {}
+        status = "no_data"
+        try:
+            if data:
+                status = "ok"
+                telemetry = json.loads(data.decode())
+                self._add_timestamp_if_present(telemetry)
+            telemetry["status"] = status
+            await self.send_telemetry(telemetry)
+            self.alerts.clear()
+        except Exception as e:
+            self.alerts.add("parse_error")
+            await self.log.error(f"Failed to process data: {e}")
+
+    def _add_timestamp_if_present(self, telemetry):
+        """If 'Date' and 'Time' are present, combine and convert to timestamp."""
+        date_str = telemetry.get("Date")
+        time_str = telemetry.get("Time")
+        if date_str and time_str:
+            dt_str = f"{date_str} {time_str}"
+            naive_dt = datetime.strptime(dt_str, "%d/%m/%Y %H:%M:%S")
+            tz_aware_dt = naive_dt.replace(tzinfo=ZoneInfo(self.timezone))
+            telemetry["timestamp"] = int(tz_aware_dt.timestamp())
+            telemetry.pop("Date")
+            telemetry.pop("Time")           
+
+if __name__ == "__main__":
+    asyncio.run(main())