Siemens Simatic S7-1500 User Manual

Technology functions
3.1 High-speed counters
CPU 1512C-1 PN (6ES7512-1CK00-0AB0)
38 Manual, 09/2016, A5E35306440-AB
Measuring ranges
The measuring functions have the following measuring range limits:
Table 3- 2 Overview of low and high measuring range limits
Measurement type
Low measuring range limit
High measuring range limit
Frequency measurement
0.04 Hz
400 kHz *
Period measurement 2.5 μs * 25 s
Velocity measurement Depending on the configured number of "increments per unit" and the "timebase
for velocity measurement"
* Applies to 24 V incremental encoder and "quadruple" signal evaluation
All measured values are returned as signed values. The sign indicates whether the count
value increased or decreased during the relevant time period. For example, a value of -
80 Hz means that the count value decreases at 80 Hz.
Reference
For more information on measuring, refer to the S7-1500, ET 200MP, ET 200SP Counting,
measurement and position detection function manual
(http://support.automation.siemens.com/WW/view/en/59709820
).
3.1.1.3
Position detection for motion control
You can use the digital on-board I/O, e.g. with an incremental encoder, for position detection
with S7-1500 Motion Control. The position input is based on the counting function, which
evaluates the acquired encoder signals and provides them for S7-1500 Motion Control.
In the hardware configuration of the CPU 1512C-1 PN in STEP 7 (TIA Portal), select the
"Position input for Motion Control" mode.
Reference
For a detailed description of the use of motion control and its configuration, refer to the
S7-1500 Motion Control function manual
(http://support.automation.siemens.com/WW/view/en/59381279
). In the function module, the
interface between the drives and encoders is referred to as a technology module (TM). In
this context, a technology module (TM) also refers to the digital on-board I/O of the compact
CPU described here.

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)