1. Core Technical Parameters

Supply Voltage：24 VDC backplane power

Main Bus Protocol：MasterBus 300, PROFIBUS-DP

Max Extended Bus Distance：1200 m

Galvanic Isolation Rating：2500 VAC

Operating Temperature：-20℃ ~ +60℃

Mounting Carrier：ABB Advant OCS & S800 rack backplane

Power Consumption：≤ 5 W

2. Compatibility & Expandability

Same-brand Compatibility

ABB DSBC 172 serves as dedicated bus repeater and supervision board for ABB Advant OCS distributed control system. Process maintenance technicians install multiple ABB DSBC 172 on cabinet backplanes to extend bus coverage for large-scale chemical and power production lines. ABB DSBC 172 inserts standard single-width rack slots and regenerates attenuated bus signals for ABB AC800M CPU units and all S800 analog/digital I/O modules without extra signal amplifying terminals. Built-in bus fault detection circuits help field crews track communication stability of ABB DSBC 172 and sustain continuous data exchange with factory-deployed ABB pressure and flow transmitters.

Cross-brand Compatibility

Proprietary MasterBus 300 backplane communication protocol blocks direct hardware docking of ABB DSBC 172 with third-party main controllers. Independent protocol conversion gateways become mandatory to build data transmission links connecting ABB DSBC 172 with Siemens or Schneider PLC hardware. Universal PROFIBUS-DP international standard enables ABB DSBC 172 to relay field measurement signals to most aftermarket industrial sensor sets with no internal circuit reconstruction.

3. Lifecycle Cost Analysis

Service cycle of ABB DSBC 172 covers 10 years, exchange rate:1USD=7.2CNY, purchase and installation fees are excluded from all cost statistics

Annual routine maintenance cost: Bus signal attenuation test and internal dust clearance for ABB DSBC 172 costs 34 USD per year, total 10-year maintenance expense: 340 USD

Spare part replacement cost: Bus signal processing chip failure of ABB DSBC 172 generally occurs once every 7 years, single spare module price: 442 USD, total replacement expense within 10 years: 442 USD

Retrofit expense saving: Original cabinet bus wiring layout fully matches ABB DSBC 172 during legacy DCS system renovation, saving 278 USD extra construction labor cost compared with incompatible substitute bus repeater modules

Total cumulative running cost for single ABB DSBC 172 across ten service years: 504 USD