Product Overview
The Schneider Electric 170PNT16020 is a communication adaptor built for the Modicon Momentum series. It adds Modbus Plus connectivity to Momentum assemblies, letting controllers exchange data across a token-passing industrial network. The module supports both token bus and peer-to-peer access methods, so it fits multi-drop architectures as well as direct station-to-station links. At 0.25 lbs (0.11 kg), it adds almost nothing to panel weight.
Technical Specifications
| Parameter | Value |
|---|---|
| Type | Communication Adaptor |
| Communication Option | Modbus Plus |
| Transmission Rate | 1 Mbit/s |
| Access Methods | Token Bus, Peer To Peer |
| Operating Temperature | 0 to 40 degrees Celsius |
| Storage Temperature | 0 to 50 degrees Celsius |
| Maximum Relative Humidity | 80% (non-condensing) |
| Maximum Altitude | 1000 meters above sea level |
| Operating Environment | Clean indoor, no corrosive substances |
| Weight | 0.25 lbs (0.11 kg) |
| EAN | 3595861147492 |
The 1 Mbit/s transmission rate matters in practice. It keeps polling cycles short enough for coordinated control tasks, while the token bus method guarantees each node a turn on the wire. Peer-to-peer support removes the need for a dedicated master in smaller links.
Where the 170PNT16020 Fits
Modbus Plus remains common in installed Modicon Momentum systems across oil, gas and process plants. Three typical uses stand out:
- Legacy network extensions. When a line adds a station, this adaptor brings the new node onto the existing Modbus Plus trunk without a full network rebuild.
- Peer-to-peer links. Two Momentum assemblies can exchange data directly, which suits small skids and remote wellhead panels.
- Spare stock for critical loops. Because the module is small and light, keeping a ready-to-ship spare on the shelf is a practical insurance policy for uptime.
Installation and Environment
Mount the adaptor as part of the Momentum assembly and follow the manufacturer’s wiring documentation for the network connection. The module is rated for a clean indoor environment with no corrosive substances, so keep it inside a suitable enclosure away from wash-down areas and chemical vapours.
Respect the operating limits: 0 to 40 degrees Celsius, 80% relative humidity non-condensing, and a maximum altitude of 1000 meters. Storage extends to 50 degrees Celsius, still at 80% non-condensing humidity. Verify current lifecycle status and availability with Oil AutoTech before ordering.
Comparison With Alternatives
| Consideration | 170PNT16020 | Generic Modbus Plus card |
|---|---|---|
| Native Modicon Momentum fit | Yes | Often needs adaptation |
| Transmission rate | 1 Mbit/s | Varies by vendor |
| Token bus and peer-to-peer | Both supported | Usually one method |
| Documented environmental limits | Yes | Not always published |
For buyers comparing options, the deciding factor is usually fit and documentation rather than headline speed. A native Momentum adaptor avoids mechanical and firmware surprises.
Maintenance and Reliability
Inspect the module periodically as part of routine panel checks. Confirm the network connection is seated, watch for dust build-up in the enclosure, and keep ambient conditions within the published range. Because the unit has no moving parts, most failures trace back to environment or cabling rather than the adaptor itself.
Selection Checklist
Before you buy, confirm the host assembly is a Modicon Momentum unit, that your network runs Modbus Plus, and that your site conditions match the temperature, humidity and altitude limits above. If you are unsure, Oil AutoTech offers hands-on technical selection help to match the right module to your application.
Contact Oil AutoTech today for pricing and availability.
