Compared to FDM121, using a Smartphone application or FDM128 has a display that can bring some advantages.
The Free of charge Ecostruxure Power Device app provides optimal usage, and intuitiveness and enables people to takeaway and share useful data.
The FDM128 is easy to install and offers a cost-effective solution for system architectures, with the capability to connect and display data from up to 8 devices.
Ecostruxure Power Device Mobile application | FDM128 | FDM121 | |
Power supply | Self-powered | 24V | Powered by ULP |
Size | Smartphone display | 7 inches | 5 inches |
Resolution | Smartphone resolution | 320 x 240 pixel | 128 x 128 pixel |
Color | Yes | Yes | No |
Interaction | Tactile & more intuitive | Tactile | Pushbutton |
Number of devices | 1 at once | 8 | 1 |
Mobility | Yes | No | No |
Connection | Bluetooth (MasterPact MTZ, TeSys GV4) | Ethernet | ULP |
Physical installation | N/A | 22 mm round hole | Square cut |
Working distance | 10m | Up to 100m | <5m |
Aging | No | Yes | Yes |
Data Sharing | Yes | No | No |
Released for: Schneider Electric Ireland

