SIEMENS 6DS1144-8AA 8-channel I/O-bus

PLC Autocontroller | 20 years of excellence in industrial automation parts supply

6DS1144-8AA  | 8-channel I/O-bus

PLC Autocontroller | Sales Manager May | Wechat id: dcsfcs

Product Identification

Model: 6DS1144-8AA

Manufacturer: Siemens

Type/Function: 8-channel I/O-bus

What it is?

The 6DS1144-8AA is an 8-channel I/O-bus comparator & switch-over module that continuously watches two parallel buses,

cuts over in < 1 ms and keeps your AS 235 H extension unit running even when one side develops a fault. 

Key Technical Specifications

Part no：6DS1144-8AA 

Function：I/O bus comparator + automatic switch-over

Channels：8 digital I/O lines (bus A vs. B)

Switch-over time：< 1 ms, bumpless

Bus isolation：1 kV A-to-B

Power draw：100 mA @ 5 V (from rack)

Accuracy：±0.05 % reference comparison

MTBF： @ 40 °C 310 000 h (SN 29500)

Application Scenarios

l Power-gen turbine hall: single module prevents bus-fault trips, saves 50 MW restart

l Cold-store distribution: –25 °C panel air, 24/7 operation since 1998, zero drift

l Offshore water-flood: keeps redundant I/O islands alive without extra CPUs

Contact Hotline

Sales Manager May

E-mail: ab@mooreplc.com

Phone: +86-18106909650 (whatsapp)

Wechat id: dcsfcs

What happens next?