Siemens 6ES7134-7TD50-0AB0 SIMATIC ET 200iSP 4AI HART 4-Wire Ex ib Remote I/O Module

The Siemens 6ES7134-7TD50-0AB0 is an ET200iSP electronic module with 4 analog inputs for HART 4-wire transmitters, rated Ex ib [ia Ga] IIC T4 Gb for direct installation in hazardous Zone 1 areas. It supports HART protocol version 6.0, integrates a fieldbus transceiver, and delivers 12-bit resolution with a 30 ms basic conversion time per channel.

Technical Specifications

Certifications & Standards

• GL
• ABS
• BV
• DNV

Selection Notes

The Ex ib [ia Ga] IIC T4 Gb rating places this module in Zone 1 gas-hazardous areas and Zone 21 dust areas — the 'ib' protection level, unlike 'ia', is rated for a single-fault condition rather than a fault-free enclosure, which matches typical process-industry field cabinets rather than Zone 0 locations. The 4-wire HART input wiring, rather than 2-wire loop-powered, is the deciding factor over other ET200iSP analog input variants: it suits transmitters with a separate power source instead of loop-powered instruments. Cable runs up to 500 m shielded keep the module usable for transmitters mounted well away from the I/O station.

Applications

Analog measurement input for HART 4-wire transmitters — pressure, level, flow, temperature — in Ex Zone 1 gas or Zone 21 dust process areas such as chemical, oil and gas, or pharmaceutical plants.