Article image EL6021

Beckhoff EL6021

EL6021 | Serial interface RS422/RS485

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Description

The EL6021 serial interface enables the connection of devices with RS422 or RS485 interface. These devices communicate with the automation device via the coupler. The active communication channel operates independently of the higher-level bus system in full or half duplex mode at up to 115.2 kbaud. The transmission of differential signals according to RS422 guarantees high immunity to interference through electrically isolated signals.

Technical parameters

Technology: terminal contact
Data transfer channels: TxD and RxD, full/half duplex
Data transfer rates: 2400…115,200 baud; default: 9600 baud, 8 data bits, no parity and one stop bit
Bit transfer: with differential signal
Line impedance: 120 Ω
Cable length: approx. 1000 m twisted pair
Interfaces: 1 x RS422/RS485
Providing external supply:
Power supply: via the E-bus
Electrical isolation: 500 V (E-bus/signal voltage)
Data buffer: 864 bytes receive buffer, 128 bytes transmit buffer
Bit width in the process image: 22 x 8 bit input, 22 x 8 bit output, 16 bit control, 16 bit status
Configuration: no address setting, configuration via PLC
Current consumption E-bus: typ. 170 mA
Weight: approx. 55 g
Operating/storage temperature: -25…+60 °C/-40…+85 °C
Relative humidity: 95 %, no condensation
Vibration/shock resistance: conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission: conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos.: IP 20/variable
Pluggable wiring: for all ESxxxx terminals
Approvals: CE, UL, Ex, IECEx

Logistic parameters

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