ABB Ability™ System 800xA Advant® Master S400 I/O to S800 I/O Evolution

ABB Ability™ System 800xA

 Advant® Master S400 I/O to S800 I/O Evolution

ABB’s S400 I/O system has been around since 1986 and created a reputation for itself world-wide as a capable and reliable I/O system. But these days, spares are getting ever harder to come by, and the system does not support the industry-standard field buses of today.

 Consequently ABB has developed a replacement 

solution, based on its current – and future – I/O system 

S800, which is designed to provide expanded

 functionality, greater flexibility, higher reliability, 

and improved self-diagnostics.

 More specific benefits available when upgrading 

from S400 I/O are:

 • Retain existing field wiring, right up to their 

plug-in connectors.

 • Unscrew the old unit and put the new one in its 

place! It will fit perfectly, down to the existing 

screw holes, DIN rail and connectors.

 • Pretested functionality, from the connector  

sockets in.

 • Shortest possible downtime. Just plug in and produce!

 • Enables HART® fieldbus support and thereby  

management of intelligent field devices from a 

central point.

 The evolution units consist of platemounted S800 

I/O modules with exactly the same footprint and 

mounting alternatives (corner screws or DIN rails) 

as those of the old S400 units. And of plug connector 

sockets and intermediate wiring that match up to the 

existing field wiring and its connectors perfectly.

Table showing how S400 I/O to S800 I/O termination 

units map onto existing S400 I/O installations.

 Replaces the following S400I/O units

 TU401 DSAX 452 unipolar

 TU402 DSDX 452/452L/454/454L

 TU403 DSDI 452/454

 TU404 DSDI 452/454 + DSDI 451/453

 TU405 DSDX 452/452L/454/454L + DSDI 451/453

 TU406 DSDI 452/454 + DSDX 451/453

 TU407 DSDX 452/452L/454/454L + DSDX 451/451L/453/453L

 See product documentation for more details.

 Upgrading to S800 I/O is essentially as easy as re

moving the existing S400 I/O station and putting 

the new I/O assembly in its place.

 The reward is a more capable, adaptable and main

tenance-friendly I/O system that will provide reliable 

service far into the future. Thereby contributing as 

much as an I/O system ever can to higher output and 

a better financial return.