Siemens Simatic S7-1500 User Manual

Technology functions
3.1 High-speed counters
CPU 1512C-1 PN (6ES7512-1CK00-0AB0)
Manual, 09/2016, A5E35306440-AB
39
3.1.1.4
Additional functions
Synchronization
You can configure an external reference signal edge to load the counter with the specified
start value. The following external signals can trigger a synchronization:
● Rising or falling edge of a digital input
● Rising edge of signal N at the encoder input
● Rising edge of signal N at the encoder input depending on the level of the assigned digital
input
Comparison values
The integrated counter supports 2 comparison values and digital output HSC DQ1. If the
counter or measured value meets the set comparison condition, HSC DQ1 can be set in
order to trigger direct control operations in the process.
Both comparison values can be set in the parameters and can be changed during runtime by
the user program.
Hardware interrupts
If you have enabled a hardware interrupt in the hardware configuration, the counter can
trigger a hardware interrupt in the CPU when a comparison event occurs, if there is overflow
or underflow, at a zero crossing of the counter, and/or at a change of count direction
(direction reversal). You can specify which events are to trigger a hardware interrupt during
operation in the hardware configuration.
Diagnostics interrupts
If you have enabled a diagnostics interrupt in the hardware configuration, the counter can
trigger a diagnostics interrupt if the supply voltage is missing, if there is an incorrect A/B
count signal or lost hardware interrupt.

Siemens Simatic S7-1500 Specifications

General

Protection Class	IP20
Programming Language	LAD, FBD, STL, SCL, GRAPH
Communication Interfaces	PROFINET, PROFIBUS, Ethernet, OPC UA
Memory	Work memory and load memory (integrated or external memory card)
I/O Modules	Digital I/O, Analog I/O, Technology modules, Communication modules
Safety Integrated	Yes (with fail-safe CPUs and modules)
Redundancy	CPU redundancy possible with specific CPU types
Temperature Range	0°C to 60°C (horizontal installation)
Digital Inputs	Scalable through digital input modules
Digital Outputs	Scalable through digital output modules
Analog Inputs	Scalable through analog input modules
Analog Outputs	Scalable through analog output modules
Backplane	Integrated backplane for module connection
Real-time clock	Integrated real-time clock
CPU Type	Various models available (e.g., CPU 1511-1 PN, CPU 1513-1 PN, CPU 1515-2 PN, CPU 1517-3 PN, CPU 1518-4 PN/DP)