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Media Redundancy Protocol (MRP), automatic addressing/topology detection (LLDP, DCP)

PN/PN coupler;
DP/DP coupler;
DP/PN coupler;
PN/ModbusTCP coupler

– Varied design of 35 °, 90 ° angles
– Built-in LED for easy fault diagnosis
– With PG and without PG
– Screw or quick-connect terminal (EasyConnect)
– RJ45 connector for Profinet, Modbus, EtherCAT connections

– Very compact design for DIN rail mounting.
– Redundant power supply.
– Galvanic isolation of the networks.
– Up to 1024 Byte input/output data.
– 300 configurable slots for PROFINET IO data.

TB20 – Distributed I/O system
– Three-component module design
– Ideal handling, achieved with a compact design
– Clear, unique labels. Hot-Swap capability

The energy meter function module can be used to measure all important current and voltage measurement values on 230 V AC networks.

I/O module for S7-300:

Digital input/ digital output
Analog input/ analog output
Accessories: connector, memory card…

Integrated 3 or 4 LAN ports.
WAN, 3G, LTE or WiFi.
Compact size saves space.

TB20 now supports six different fieldbus systems like PROFINET and EtherNet/IP.
Multiple communication channels possible

Communication between CPUs (S7-300 * and S7-400 *)
WLAN ports (802.11 b / g) with speeds up to 54 Mbps can be enabled and disabled
Support for all common technical tools for S7


Security function for access by TCP / IP protocol.
PLC protection feature can be enabled and disabled.
Easy to configure via web interface