Pepperl+Fuchs LB8107*
Com Unit for MODBUS RTU
- Interface between the I/O modules and the PCS/PLC
- Com unit for 80 analog or 184 digital channels
- Communication via MODBUS RTU
- Mounting in Zone 2, Class I/Div.2 or in the safe area
- 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
- Module can be exchanged under voltage
Item Number:
LB8107*
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- Overview
- Comments
| Degree of protection | IP20 (module) , mounted on backplane |
| UL approval | E106378 |
| Number of stations per bus segment | max. 31 (RS-485 standard) |
| 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 В± 0.075 mm/1 g; 10 cycles frequency range 5 ... 100 Hz; transition frequency: 13.2 Hz amplitude/acceleration В± 1 mm/0.7 g; 90 minutes at each resonance |
| Mass | approx. 120 g |
| Storage temperature | -25 ... 85 В°C (-13 ... 185 В°F) |
| Connection | backplane bus |
| Connection | via backplane |
| IECEx approval | BVS 09.0037X |
| Addressing | via configuration software |
| FOL (fiber optic link) | additional hardware required |
| Rated voltage | 5 V DC , only in connection with the power supplies LB9*** |
| EAC approval | Russia: RU C-IT.MIII06.B.00129 |
| Damaging gas | designed for operation in environmental conditions acc. to ISA-S71.04-1985, severity level G3 |
| Fieldbus type | MODBUS RTU |
| Bus length | max. 1200 m (FOL, 38.4 kBd), max. 1200 m (copper cable, 38.4 kBd) |
| Number of repeaters between Master and Slave | max. 3 |
| MODBUS address | standard compliant (factory standard setting: 126) |
| Power consumption | 2 W |
| Ambient temperature | -20 ... 60 В°C (-4 ... 140 В°F) |
| Number of stations per bus line | max. 245 (MODBUS), max. 119 (service bus) |
| Electromagnetic compatibility | NE 21 |
| Number of channels per station | max. 80 analog, max. 184 digital (standard configuration) |
| Supported I/O modules | all LB remote I/O modules |
| Service bus address | max. 119 , redundancy address = base + 128 (automatic) |
| ATEX approval | PF 08 CERT 1234 X |
| Certificate | PF 08 CERT 1234 X |
| LED indicator | LED 1 (power supply): On = operating, fast flash = cold start LED 2 (collective alarm): On = internal fault, flashing = no Modbus RTU connection LED 3 (status process bus): flashing = Modbus receive channel active LED 4 (status service bus): flashing = service bus receive channel active LED 5 (operating mode): flashing 1 (1:1 ratio) = active, normal operation; flashing 2 (7:1 ratio) = active, simulation LED 6 (status process bus): flashing = Modbus response channel active LED 7 (status servicebus): flashing = service bus response channel active |
| HART communication | via service bus |
| Connection | backplane bus |
| Redundancy | via backplane |
| Degree of protection | IEC 60529 |
| Dimensions | 32.5 x 100 x 102 mm (1.28 x 3.9 x 4 inch) |
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