The TM2DOCKN from Schneider Electric serves as a dedicated expansion interface for the Modicon M218 series. You can connect various TM2 expansion modules through this single interface. Consequently, system scalability becomes much simpler.
This module requires only 5VDC 5mA internal power. Therefore, it adds minimal load to your power budget. The physical dimensions are just 3 × 2 × 4 inches, which fits tight enclosures.
Many users appreciate how the TM2DOCKN simplifies wiring. Instead of direct cabling to the controller, you route all TM2 expansions through this interface. Additionally, it improves organization inside the control panel.
Electrical parameters are straightforward. The module operates on 5VDC supplied by the Modicon M218 backplane. Current consumption is only 5mA.
Compatibility covers the full TM2 expansion range. For instance, you can connect digital I/O, analog I/O, or specialty modules. The TM2DOCKN also works with Advantys OTB and Twido systems as noted in its complementary range.
Communication happens through the dedicated expansion port. No separate configuration is required. Simply plug the interface into the controller, then attach TM2 modules.
Dimensions measure 3 inches wide, 2 inches high, and 4 inches deep. This compact footprint leaves room for other components.
Mounting uses standard DIN rail or panel screws. The plastic housing is rated for industrial environments.
Temperature range spans 0°C to 55°C for operation. Storage from -40°C to 85°C is acceptable.
Humidity tolerance is 5% to 95% non-condensing. Therefore, the TM2DOCKN works reliably in most factory conditions.
First, ensure your Modicon M218 controller is powered off. Next, align the TM2DOCKN with the expansion port on the right side of the CPU. Then press firmly until the latch clicks.
For TM2 expansion modules, connect them to the TM2DOCKN sequentially. Each module locks to the previous one. Finally, secure all units with end clamps.
Meanwhile, verify that total current draw does not exceed the Modicon M218 power budget. The TM2DOCKN itself uses only 5mA, but each attached TM2 module adds its own consumption.
TM2DOCKN expansion interface module (1 unit)
DIN rail clip (pre-installed)
User manual quick start guide
End clamp for last module
Note: No certificates or warranty documents are included.
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1. Which controllers work with the TM2DOCKN?
The TM2DOCKN is specifically designed for Schneider Electric Modicon M218 PLCs. It also shows limited compatibility with Advantys OTB and Twido systems.
2. How many TM2 expansions can I connect?
The limit depends on your Modicon M218 CPU model and power budget. Typically, you can attach up to 7 TM2 modules through one TM2DOCKN interface.
3. Does the TM2DOCKN need external power?
No. It draws 5VDC 5mA directly from the Modicon M218 backplane. No external power supply is required.
4. Can I use this interface with non-Schneider PLCs?
We do not recommend it. The TM2DOCKN uses a proprietary expansion bus. For reliable operation, use it only with Modicon M218 or specified compatible ranges.
5. What is the physical size of the TM2DOCKN?
Its dimensions are 3 × 2 × 4 inches (76 × 51 × 102 mm). This compact size fits easily into small cabinets.
| Brand Name | Schneider Electric |
| Model No. | TM2DOCKN |
| Product Type | Expansion Interface Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
