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FB8207* Com Unit for MODBUS RTU
Key Benefits at a Glance
- Interface between the I/O modules and the PCS/PLC
- Com unit for 80 analog or 184 digital channels
- Communication via MODBUS RTU
- Installation in suitable enclosures in Zone 1
- Module can be exchanged under voltage (hot swap)
- HART communication via service bus
- Configuration via FDT 1.2 DTM
- Non-volatile memory for configuration and parameter settings
- Self configuration in redundant systems
- Permanently self-monitoring
- Outputs drive to safe state in case of failures
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Note
All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.
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Technical data of FB8207*
| Com Unit for MODBUS RTU |
| Connection | backplane bus | |
| Rated voltage | Ur | 5 V DC , only in connection with the power supplies FB92** |
| Power consumption | 2 W |
| Fieldbus type | MODBUS RTU | |||||||
| MODBUS RTU | ||||||||
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| Number of stations per bus line | max. 245 (MODBUS), max. 119 (service bus) | |||||||
| Number of channels per station | max. 80 analog, max. 184 digital (standard configuration) | |||||||
| Number of stations per bus segment | max. 31 (RS-485 standard) | |||||||
| Number of repeaters between Master and Slave | max. 3 | |||||||
| Supported I/O modules | all FB remote I/O modules | |||||||
| Bus length | max. 1200 m (FOL, 38.4 kBd), max. 1200 m (copper cable, 38.4 kBd) | |||||||
| FOL (fiber optic link) | additional hardware required | |||||||
| Addressing | via configuration software | |||||||
| MODBUS address | standard compliant (factory standard setting: 126) | |||||||
| Service bus address | max. 119 , redundancy address = base + 128 (automatic) | |||||||
| HART communication | via service bus | |||||||
| Connection | backplane bus | |
| Redundancy | via front connector |
| LED indicator | LED green (power supply): On = operating, fast flash = cold start LED red (collective alarm): On = internal fault, flashing = no Modbus RTU connection LED yellow (operating mode): flashing 1 (1:1 ratio) = active, normal operation; flashing 2 (7:1 ratio) = active, simulation |
| Electromagnetic compatibility | |||||
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| Electromagnetic compatibility | NE 21 | |
| Degree of protection | IEC 60529 |
| Ambient temperature | -20 ... 60 °C (-4 ... 140 °F) | |
| Storage temperature | -25 ... 85 °C (-13 ... 185 °F) | |
| Relative humidity | 95 % non-condensing | |
| Shock resistance | shock type I, shock duration 11 ms, shock amplitude 15 g, number of shocks 18 | |
| Vibration resistance | frequency range 10 ... 150 Hz; transition frequency: 57.56 Hz, amplitude/acceleration ± 0.075 mm/1 g; 10 cycles frequency range 5 ... 100 Hz; transition frequency: 13.2 Hz amplitude/acceleration ± 1 mm/0.7 g; 90 minutes at each resonance | |
| Damaging gas | designed for operation in environmental conditions acc. to ISA-S71.04-1985, severity level G3 |
| Degree of protection | IP20 (module) , a separate housing is required acc. to the system description | |
| Connection | via backplane | |
| Mass | approx. 750 g | |
| Dimensions | 57 x 107 x 132 mm (2.2 x 4.2 x 5.2 inch) |
| EU-Type Examination Certificate | PTB 97 ATEX 1074 U | ||||
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| Directive conformity | |||||
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II 2(1) G Ex d [ia Ga] IIC Gb| ATEX approval | PTB 97 ATEX 1075 | |||||||||||||
| EAC approval | Russia: RU C-IT.MIII06.B.00129 | |||||||||||||
| Marine approval | ||||||||||||||
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