This Termination Board with Enclosure (TBE) allows the remote monitoring of any HART®-compatible 4/20 mA field loop. This is obtained by one locally mounted HART® Multiplexer Modem 5700 series and terminal block interface connectors to access the relevant loops. The board is installed in series to the loops and is totally transparent to both transmitter and receiver. This model is suitable for interfacing AI cards of safety PLCs with typical input impedance of 250 Ω and AO cards. The single TBE-D5001-HRT-004 Termination Board supports 32 channels. Yet, it could be extended with additional units (up to 8) to manage all 256 channels available on the HART® Multiplexer Modem 5700 series. The Mux unit connects, via the RS-485 interface, to an external PC running an FDT-based software package (PACTware™, etc...) through a dedicated Device Type Manager (DTM). The PC can communicate with multiple Mux units, located on different boards, in a multi-drop RS-485 mode. The HART® Termination Board TBE-D5001-HRT-004 is SIL 3 certified as non-interfering with the signal loops. The 24 Vdc Power Supply of the TBE is connected to two plug-in terminal blocks, for a redundant power supply.
FEATURES
- SIL 3 / SC 3
- Installation in Zone 2/Div. 2
- HART® Multiplexing Board of up to 32 analog signals (extendable to 256)
- Up to 16128 smart devices in full topology network
- Suitable for AI cards with 250 Ω input impedance and AO cards
- 4/20 mA loops isolated with dual capacitors (short circuit proof)
- Dedicated terminal to connect RS-485 cable shield
- Double terminal to ease RS-485 cable multi-drop
- Lower cables installation and maintenance costs
- Redundant power supply
- Mounting hardware provided for single DIN Rail mounting kit
