Specifications

Glossary

EIO0000000051 6/2010 261

GSD

generic slave data (file). A device description file, supplied by the device’s

manufacturer, that defines a device’s functionality on a Profibus DP network.

HMI

human-machine interface. An operator interface, usually graphical, for industrial

equipment.

hot swapping

Replacing a component with a like component while the system remains

operational. When the replacement component is installed, it begins to function

automatically.

HTTP

hypertext transfer protocol. The protocol that a web server and a client browser use

to communicate with one another.

I/O base

A mounting device, designed to seat an Advantys STB I/O module, hang it on a DIN

rail, and connect it to the Island bus. It provides the connection point where the

module can receive either 24 VDC or 115/230 VAC from the input or output power

bus distributed by a PDM.

I/O module

In a programmable controller system, an I/O module interfaces directly to the

sensors and actuators of the machine/process. This module is the component that

mounts in an I/O base and provides electrical connections between the controller

and the field devices. Normal I/O module capacities are offered in a variety of signal

levels and capacities.

I/O scanning

The continuous polling of the Advantys STB I/O modules performed by the COMS

to collect data bits, status, nd diagnostics information.