Scope of the Proposed 1-Wire System
The proposed application uses a Maxim/Dallas Semiconductor 1-Wire network with a DS2760 for temperature measurement and asks whether pressure devices can join the same daisy-chained, portable system. The evidence does not identify a compatible pressure device, electrical interface, network length, node count, update rate, accuracy, power arrangement, or environmental rating. Therefore, it does not establish that the complete temperature-and-pressure architecture is viable.
Environmental Constraint
Available field experience reports successful operation in a protected environment, specifically an escort-tag application on a garment conveyor. Treat that result as application evidence, not proof of suitability for exposed industrial measurement. Before selection, define the portable system's exposure to moisture, contamination, mechanical damage, and electrical interference, then verify the proposed devices and network against those conditions.
Architecture Decision
| Decision | Evidence-supported status | Required verification |
|---|---|---|
| Use DS2760 for temperature | Proposed in the source; performance is not documented | Confirm that its measurement capability meets the required range, accuracy, and update rate |
| Daisy-chain pressure measurement | No compatible pressure device is identified | Identify a pressure device or interface that explicitly supports the selected network architecture |
| Deploy as a portable system | Not established | Validate wiring, power, connectors, enclosure protection, node count, cable length, and movement-related stress |
| Select an alternative network | AS-I is suggested, without supporting specifications | Compare both architectures against the same sensor, environmental, portability, and integration requirements |
Selection and Verification Procedure
- Document the required temperature and pressure ranges, accuracy, update rate, sensor count, cable length, portability constraints, and environmental exposure.
- Obtain manufacturer documentation confirming the DS2760 measurement function and the allowable 1-Wire network arrangement for the intended installation.
- Identify a pressure-measurement device or interface with documented compatibility. Do not assume that daisy-chain capability for temperature automatically extends to pressure.
- Compare the documented 1-Wire design with AS-I or the conventional transmitter architecture under consideration. Reject any option that cannot meet the defined environment or measurement requirements.
- Build a representative network and verify every sensor across the full planned cable layout and expected operating environment before field deployment.
FAQ
Can a DS2760 1-Wire network measure both temperature and pressure?
The evidence proposes DS2760 temperature measurement but identifies no compatible pressure device. Confirm the pressure sensor or interface and its network compatibility before approving the architecture.
Is Maxim 1-Wire suitable for a portable industrial sensor system?
The available experience supports operation only in a protected environment. Portability remains unverified until the complete wiring, power, connectors, enclosure, cable movement, and environmental exposure are tested.
Should I choose 1-Wire or AS-I for distributed sensors?
AS-I is suggested as an alternative, but the evidence provides no comparative specifications. Select only after comparing documented sensor support, environmental suitability, network layout, portability, and controller integration.
