ABB 1HSB495663-2 TB820V2 Terminal Base (HART Type)

ABB 1HSB495663-2 TB820V2 Terminal Base (HART Type)
I. Basic Material Information
Material Number: 1HSB495663-2
Corresponding Model: TB820V2 (Special Terminal Base for S800 I/O Module with HART Function)

 System： ABB AC800M / System 800xA DCS S800 Remote I/O System
Product Type： FTA Field Wiring Terminal Base， Compatible with S800 Series Analog Input/Output Cards
Protection Grade： IP20， DIN Rail Cabinet Installation

Core Parameters and Hardware Configuration
Functional Characteristics
Built-in HART Loop Communication， supports connection of HART intelligent transmitters (pressure， temperature， flow， level， etc.， 4-20mA intelligent instruments)， and can read instrument range， diagnostics， faults， parameters， etc. via HART data in the upper system.
Compatible with Master Control Cards
AI830A， AI835， AI845， AO845， etc. S800 Series Analog Input/Output Modules
The base connects to the I/O module through flat cables， and the on-site instrument cables are crimped onto the TB820V2 terminal
Electrical Specifications
Loop Power Supply： 24VDC， supports two-wire and four-wire HART transmitters
Each channel has replaceable miniature fuses， and a single path short circuit will not damage the I/O main control card
Terminal with Error-Free Coding Design to Avoid Incorrect Insertion of Different Types of I/O Module Terminals
Environmental Parameters
Operating Temperature： 0℃～+60℃， Storage Temperature： -40℃～+85℃

Main Functions
On-site Signal Conversion Protection： Connects 4-20mA analog signals from the field to the I/O module， with channel overcurrent and short circuit protection.
HART Bus Communication Collection： Superimposes HART digital signals on the analog loop， and the 800xA system can remotely read parameters， configure， diagnose faults， and adjust the range of intelligent instruments without the need for a handheld controller on-site.
Loop Fault Diagnosis： Combined with AI/AO cards， it can detect open circuits， short circuits， and transmitter faults， triggering alarms in the upper system.
Standardized Cabinet Wiring： Screw-type terminals facilitate construction， loop verification， and later maintenance and replacement of instruments.

 Differences in the Same Series
TB820 (1HSB495663-1)： Ordinary Analog Terminal Base， without HART Function
TB820V2 (1HSB495663-2)： Enhanced HART Communication Version， capable of connecting intelligent HART instruments， the two cannot be directly interchanged for use