Siemens Simatic CFU, Commissioning Manual

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Modes:
● "Continue counting"
With the "Continue counting" setting, the counter jumps back to 0 and continues counting
when the high counting limit is violated.
● "Stop counting"
With the "Stop counting" setting, the counter jumps back to 0 and stays there when the high
counting limit is violated. The internal gate needs to be closed and opened again to continue
counting.
Redundancy, availability-enhancing
Multiple instances of components with the objective of maintaining component functionality in
the event of hardware faults.
Reference potential
Potential from which the voltages of the participating circuits are considered and/or measured.
SELV
Safety Extra Low Voltage
Sensors
Sensors are used for accurate detection of digital and analog signals as well as routes,
positions, velocities, rotational speeds, masses, etc.
Set output DQ
For the "Counter" mode, specifies the range in which the DQ output is set.
Requirement: A free channel is assigned to the counting channel as DQ output.
Modes for activated range (corresponds to DQ = 1):
● Between comparison value and low counting limit (0 ... comparison value-1)
● Between comparison value and high counting limit (comparison value ... high counting limit)
A hardware interrupt can be configured.
Slave station
A slave can only exchange data after being requested to do so by the master.
SNMP
SNMP (Simple Network Management Protocol) is the standardized protocol for diagnosing and
also configuring the Ethernet infrastructure.
Glossary
SIMATIC CFU
Commissioning Manual, 08/2019, A5E39252870-AD
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