Connect remote process data

The TBUS extension offers a low-cost method for coupling distributed feeders and remote measuring points to a telecontrol system. Instead of installing a complete FW-5, or needing elaborate cabling of signal and measurement lines to a central RTU, expansion modules of the FW-5 family are installed in a decentralised manner and connected to the TBUS extension with a patch cable.

Remote I/O typically allows switching station manufacturers to fully pre-wire switch panels, and fully install and test measurement points and switching elements to the corresponding extension boards; the commissioner only needs to fit the patch cables to a central FW-5, FW-5-GATE or FW-5-GATE-4G.

The bus signal is read on an FW-5 telecontrol unit with the TBUS-T sender as the last extension board of the block, and routed to the TBUS-R receiver via a CAT6e cable. This again powers the local extension boards and connects up them to the bus. The TBUS-R’s own power supply, with an additional 2.8A, means power can also be provided to a larger number of current-hungry extension boards (such as the DSO-1, DSO-2 and RES-1).

The system works transparently and with all extension boards without configuration intervention – in all setIT versions.

Application areas

• Switching stations
• Substations
• Applications with physically distributed measurement points
• Water towers and pump controllers
• Waste water plants