Woodward 9905-969 LINKnet 6Ch Current Input Module

Woodward 9905-969 LINKnet 6Ch Current Input Module 

Functional Description

The 9905-969 LINKnet 6Ch Current Input Module interfaces to six 4–20 mA transducers. There are two

version of the module; one for loop powered transducers and the other for self-powered transducers. Mixing

self-powered and loop powered transducers on the same module is not an option.

The module has a built-in reference voltage that is used to verify proper operation of the A/D converter.

Appropriate faults are annunciated through the application program. 

Installation

Install the LINKnet 6CH Current Input Module on the DIN rail and connect to the appropriate LINKnet

network and 24 Vdc power. Set module address one's and ten's rotary switches per application setup. 

The LINKnet system accommodates hot-replacement of faulty nodes. When replacing a node, the network

cable connections must remain intact. A faulty node can be removed from the network by pulling both

terminal blocks out of their headers, and removing the node from the DIN rail. The address switches of

the replacement node should be set to match those of the faulty node. The replacement node can then be

mounted on to the DIN rail, and the terminal blocks pushed into the headers. It is then necessary to reset the

node through the application program to reinitiate communications with the LINKnet controller module and

to clear the "no message" fault. 

Technical Specifications