ABB266DSHDifferential pressure transmitters

PA communication according to Profibus DP50170 Part 2/DIN 19245 part 1–3. Output update time 25 ms Data blocks 3 analog input, 1 physical. Additional blocks 1 Pressure with calibration transducer block 1 Advanced Diagnostics transducer block including Plugged Input Line Detection 1 Local Display transducer block Transmitter failure mode On gross transmitter failure condition, detected by selfdiagnostics, the output signal can be driven to defined conditions, selectable by the user as safe, last valid or calculated value. If electronic failure or short circuit occur the transmitter consumption is electronically limited at a defined value (20 mA approx), for safety of the network.

FOUNDATION FieldbusTM output Device type LINK MASTER DEVICE Link Active Scheduler (LAS) capability implemented. Manufacturer code: 000320hex Device type code: 0007hex Power supply The transmitter operates from 9 to 32 V DC, polarity independent, with or without surge protector. For Ex ia approval power supply must not exceed 24 V DC (FF–816 certification) or 17.5 V DC (FISCO certification). Current consumption operating (quiescent): 15 mA fault current limiting: 20 mA max. Output signal Physical layer in compliance to IEC 61158–2/EN 61158–2. Transmission to Manchester II modulation, at 31.25 kbit/s. Function blocks/execution period 3 enhanced Analog Input blocks/25 ms max (each) 1 enhanced PID block/40 ms max. 1 standard ARitmetic block/25 ms 1 standard Input Selector block/25 ms 1 standard Control Selector block/25 ms 1 standard Signal Characterization block/25 ms 1 standard Integrator/Totalizer block/25 ms Additional blocks 1 enhanced Resource block, 1 custom Pressure with calibration transducer block 1 custom Advanced Diagnostics transducer block including Plugged Input Line Detection 1 custom Local Display transducer block Number of link objects 35 Number of VCRs 35

Output interface FOUNDATION fieldbus digital communication protocol to standard H1, compliant to specification V. 1.7. Transmitter failure mode The output signal is “frozen” to the last valid value on gross transmitter failure condition, detected by selfdiagnostics which also indicate a BAD conditions. If electronic failure or short circuit occur the transmitter consumption is electronically limited at a defined value (20 mA approx), for safety of the network.