Siemens SIMATIC S7-1500 System Manual page 290

DRIVE-CLiQ
Abbreviation for Drive Component Link with IQ. This is a SINAMICS drive technology
communication system for connecting the various drive components such as control unit,
Line Modules, Motor Modules, motors and speed/positioning encoders. In terms of
hardware, DRIVE-CLiQ is based on the Industrial Ethernet standard with twisted-pair lines.
In addition to the send and receive signals, the +24 V power supply is also provided over the
DRIVE-CLiQ line.
Equipotential bonding
Electrical connection (potential equalization conductor) that brings the bodies of electrical
equipment and other conductive bodies to the same or almost the same potential, in order to
prevent disruptive or dangerous voltages between these bodies.
Failsafe module
Collective name for failsafe inputs and outputs available in SIMATIC S7 for integration into F-
systems.
Firmware update
Upgrade of firmware for the CPU and modules (interface modules, I/O modules etc.), for
example after function extensions, to the newest firmware version (update).
Forcing
Preassigning to variables in a user program fixed values that cannot subsequently be
modified or overwritten by the program.
Free function blocks (FBLOCKS)
OA application with SINAMICS. Software blocks in a SINAMICS converter that are not active
in the factory settings and can be activated and interconnected as required for additional
control and math instructions. Free function blocks allow you to implement additional control
and math instructions (for example logic functions, math functions, time functions, and
storage functions).
Function
A function (FC) is a code block with no static data. A function allows you to pass parameters
in the user program. Functions are thus suited for programming frequently recurring complex
functions, such as calculations.
Function block
A function block (FB) is a code block with static data. An FB allows you to pass parameters
in the user program. Function blocks are thus suited for programming frequently recurring
complex functions, such as closed-loop controls or operating mode selection.
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA
289