Siemens Simatic CFU, Commissioning Manual, Page: 209 / 220

Hardware gate channel
For the "Counter" mode, enables the selection of a free channel as hardware gate to control the
counting processes.
If the hardware gate is activated, it has an effect on the gate control system via a logical AND
link with the software gate. When the internal gate is open, the count pulses are processed.
Hardware interrupt
Defines for the "Counter" operating mode whether a hardware interrupt is generated when the
comparison event is reached.
Modes:
● Lock (deactivation of hardware interrupt)
● Comparison event for DQ occurred (activation of hardware interrupt)
HW Config
Hardware configuration in the engineering system
I/O modules
All modules that can be operated with a CPU or an interface module.
Identification data
Information that is saved in modules and that supports the user in checking the plant
configuration and locating hardware changes.
Interface module
Module in the distributed I/O system. The interface module connects the distributed I/O system
via a fieldbus to the CPU (IO controller) and prepares the data for and from I/O modules.
LLDP
LLDP (
Link Layer Discovery Protocol) is a network protocol that is described in the international
standard IEEE-802.1AB. As a manufacturer-independent Layer-2 protocol for the recognition
of the topology in a network it serves to transfer information to neighboring devices.
Devices that support LLDP send device-specific information via an LLDP agent (software
component) to the multicast address 01:80:C2:00:00:0E with the type 0x88C at periodic
intervals. Neighboring LLDP-compatible devices store received information in the
Management Information Base (MIB) and thus recognize neighboring devices.
Load current supply
Supply of modules like the interface module, power supply modules, I/O modules, and (if
applicable) sensors and actuators.
Glossary
SIMATIC CFU
Commissioning Manual, 08/2019, A5E39252870-AD
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