diff --git a/.vscode/launch.json b/.vscode/launch.json
index 78d0876..72a40ed 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -5,7 +5,7 @@
     "version": "0.2.0",
     "configurations": [
         {
-            "name": "Debug temp controller",
+            "name": "TempController Sim",
             "type": "python",
             "request": "launch",
             "module": "tickit",
@@ -25,6 +25,23 @@
                 "PYTEST_ADDOPTS": "--no-cov"
             },
         },
+        {
+            "name": "TempController IOC",
+            "type": "python",
+            "request": "launch",
+            "program": "${workspaceFolder}/src/demo_fast_cs/demo.py",
+            "justMyCode": false,
+            "purpose": [
+                "debug-test"
+            ],
+            "console": "integratedTerminal",
+            "env": {
+                // The default config in pyproject.toml's "[tool.pytest.ini_options]" adds coverage.
+                // Cannot have coverage and debugging at the same time.
+                // https://github.com/microsoft/vscode-python/issues/693
+                "PYTEST_ADDOPTS": "--no-cov"
+            },
+        },
         {
             "name": "Debug Unit Test",
             "type": "python",
diff --git a/src/demo_fast_cs/controllers.py b/src/demo_fast_cs/controllers.py
index 30a4c28..977c5ab 100755
--- a/src/demo_fast_cs/controllers.py
+++ b/src/demo_fast_cs/controllers.py
@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import asyncio
 from dataclasses import dataclass
 from typing import Any
 
@@ -41,6 +42,7 @@ async def update(
         response = await controller.conn.send_query(
             f"{self.name}{controller.suffix}?\r\n"
         )
+
         if attr.dtype is bool:
             await attr.set(int(response))
         else:
@@ -48,7 +50,7 @@ async def update(
 
 
 class TempController(Controller):
-    ramp_rate = AttrRW(Float(), handler=TempControllerHandler("R"))
+    ramp_rate = AttrRW(Float(), handler=TempControllerHandler("R"), group="Config")
 
     def __init__(self, settings: TempControllerSettings) -> None:
         super().__init__()
@@ -63,10 +65,12 @@ def __init__(self, settings: TempControllerSettings) -> None:
             self._ramp_controllers.append(controller)
             self.register_sub_controller(controller)
 
-    @command
+    @command()
     async def cancel_all(self) -> None:
         for rc in self._ramp_controllers:
             await rc.enabled.process(False)
+            # TODO: The requests all get concatenated if they are sent too quickly?
+            await asyncio.sleep(0.1)
 
     async def connect(self) -> None:
         await self.conn.connect(self._settings.ip_settings)
@@ -76,12 +80,12 @@ async def close(self) -> None:
 
 
 class TempRampController(SubController):
-    start = AttrRW(Int(), handler=TempControllerHandler("S"))
-    end = AttrRW(Int(), handler=TempControllerHandler("E"))
-    current = AttrR(Float(prec=3), handler=TempControllerHandler("T"))
+    start = AttrRW(Int(), handler=TempControllerHandler("S"), group="Config")
+    end = AttrRW(Int(), handler=TempControllerHandler("E"), group="Config")
+    current = AttrR(Float(prec=3), handler=TempControllerHandler("T"), group="Status")
     enabled = AttrRW(Bool(znam="Off", onam="On"), handler=TempControllerHandler("N"))
 
     def __init__(self, index: int, conn: IPConnection) -> None:
         self.suffix = f"{index:02d}"
-        super().__init__(f"ramp{self.suffix}")
+        super().__init__(f"Ramp{self.suffix}")
         self.conn = conn
diff --git a/src/demo_fast_cs/demo.py b/src/demo_fast_cs/demo.py
index ca08040..77dba8e 100644
--- a/src/demo_fast_cs/demo.py
+++ b/src/demo_fast_cs/demo.py
@@ -80,3 +80,7 @@ def main() -> None:
     # test_asyncio_backend()
     create_gui()
     test_ioc()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/src/demo_fast_cs/simulation/device.py b/src/demo_fast_cs/simulation/device.py
index df8fc8d..62cec2e 100755
--- a/src/demo_fast_cs/simulation/device.py
+++ b/src/demo_fast_cs/simulation/device.py
@@ -1,19 +1,19 @@
 import logging
 import traceback
-from dataclasses import dataclass
 from os import _exit
 
 import numpy as np
 import numpy.typing as npt
-from tickit.adapters.composed import ComposedAdapter
-from tickit.adapters.interpreters.command import CommandInterpreter
-from tickit.adapters.interpreters.command.regex_command import RegexCommand
-from tickit.adapters.interpreters.wrappers import SplittingInterpreter
-from tickit.adapters.servers.tcp import ByteFormat, TcpServer
+import pydantic.v1.dataclasses
+from tickit.adapters.io import TcpIo
+from tickit.adapters.specifications.regex_command import RegexCommand
+from tickit.adapters.tcp import CommandAdapter
+from tickit.core.adapter import AdapterContainer
 from tickit.core.components.component import Component, ComponentConfig
-from tickit.core.components.device_simulation import DeviceSimulation
+from tickit.core.components.device_component import DeviceComponent
 from tickit.core.device import Device, DeviceUpdate
 from tickit.core.typedefs import SimTime
+from tickit.utils.byte_format import ByteFormat
 from typing_extensions import TypedDict
 
 
@@ -35,8 +35,11 @@ def wrapped_func(*args, **kwargs):
 
 
 class TempControllerDevice(Device):
-    Inputs: type = TypedDict("Inputs", {"flux": float})
-    Outputs: type = TypedDict("Outputs", {"flux": float})
+    class Inputs(TypedDict):
+        flux: float
+
+    class Outputs(TypedDict):
+        flux: float
 
     def __init__(
         self,
@@ -105,19 +108,13 @@ def update(self, time: SimTime, inputs: Inputs) -> DeviceUpdate[Outputs]:
         return DeviceUpdate(TempControllerDevice.Outputs(flux=inputs["flux"]), call_at)
 
 
-class TempControllerAdapter(ComposedAdapter):
+class TempControllerAdapter(CommandAdapter):
     device: TempControllerDevice
+    _byte_format: ByteFormat = ByteFormat(b"%b\r\n")
 
-    def __init__(
-        self,
-        host: str = "localhost",
-        port: int = 25565,
-    ) -> None:
-        super().__init__(
-            TcpServer(host, port, ByteFormat(b"%b\r\n")),
-            SplittingInterpreter(CommandInterpreter(), message_delimiter=b"\n"),
-            # CommandInterpreter(),
-        )
+    def __init__(self, device: TempControllerDevice) -> None:
+        super().__init__()
+        self.device = device
 
     def _validate_index(self, index: str) -> int:
         int_index = int(index) - 1
@@ -172,7 +169,7 @@ async def ignore_whitespace(self) -> None:
         pass
 
 
-@dataclass
+@pydantic.v1.dataclasses.dataclass
 class TempController(ComponentConfig):
     num_ramp_controllers: int
     default_start: float = 0
@@ -181,12 +178,18 @@ class TempController(ComponentConfig):
     port: int = 25565
 
     def __call__(self) -> Component:
-        return DeviceSimulation(
+        device = TempControllerDevice(
+            num_ramp_controllers=self.num_ramp_controllers,
+            default_start=self.default_start,
+            default_end=self.default_end,
+        )
+        return DeviceComponent(
             name=self.name,
-            device=TempControllerDevice(
-                num_ramp_controllers=self.num_ramp_controllers,
-                default_start=self.default_start,
-                default_end=self.default_end,
-            ),
-            adapters=[TempControllerAdapter(host=self.host, port=self.port)],
+            device=device,
+            adapters=[
+                AdapterContainer(
+                    TempControllerAdapter(device),
+                    TcpIo(self.host, self.port),
+                )
+            ],
         )
diff --git a/src/demo_fast_cs/simulation/temp_controller.yaml b/src/demo_fast_cs/simulation/temp_controller.yaml
index 5d88ecd..34562a9 100644
--- a/src/demo_fast_cs/simulation/temp_controller.yaml
+++ b/src/demo_fast_cs/simulation/temp_controller.yaml
@@ -1,15 +1,21 @@
-- tickit.devices.source.Source:
-    name: source
-    inputs: {}
-    value: 42.0
-- demo_fast_cs.simulation.device.TempController:
-    name: tempcont
-    inputs:
-        flux: source:value
-    num_ramp_controllers: 4
-    default_start: 10
-    default_end: 50
-- tickit.devices.sink.Sink:
-    name: sink
-    inputs:
-      flux: tempcont:flux
\ No newline at end of file
+- type: tickit.devices.source.Source
+  name: source
+  inputs: {}
+  value: 42.0
+
+- type: demo_fast_cs.simulation.device.TempController
+  name: tempcont
+  inputs:
+    flux:
+      component: source
+      port: value
+  num_ramp_controllers: 4
+  default_start: 10
+  default_end: 50
+
+- type: tickit.devices.sink.Sink
+  name: sink
+  inputs:
+    flux:
+      component: tempcont
+      port: flux