Rockwell Automation 1756-XXXX ControlLogix Analog I/O Modules - Manual (Page 389)

Publication 1756-UM009C-EN-P - December 2010 389
Glossary
analog interface module (AIFM)
Modules connect to pre-wired cables to provide the output terminal blocks for
the analog I/O module. These modules can be mounted on a DIN rail.
broadcast
Data transmissions to all addresses or functions.
communication format
Format that defines the type of information transferred between an I/O
module and its owner-controller. This format also defines the tags created for
each I/O module.
compatible match
An electronic keying protection mode that requires that the physical module
and the module configured in the software to match according to vendor and
catalog number. In this case, the minor revision of the module must be
greater than or equal to that of the configured slot.
connection
The communication mechanism from the controller to another module in the
control system.
coordinated system time (CST)
Timer value which is kept synchronized for all modules within a single
ControlBus chassis.
direct connection
An I/O connection where the controller establishes an individual connection
with I/O modules.
disable keying
An electronic keying protection mode that requires no attributes of the
physical module and the module configured in the software to match.
download
The process of transferring the contents of a project on the workstation into
the controller.