SIMATIC S7-1200 Integrated Technology
Integrated technology for counting
and measuring, closed-loop control
and motion control make the
SIMATIC S7-1200 an extremely
versatile system for many types of
automation tasks. |
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High-speed inputs for counting and measuring
Up to six high-speed counters, three
at 100 kHz and three at 30 kHz are
integrated for precise monitoring
of incremental encoders, frequency
counting, or high-speed counting of
process events.
High-speed outputs for speed, position or duty cycle control
Two high-speed outputs are integrated
into the SIMATIC S7-1200 controller
for use as either pulse train outputs or
pulse width modulated outputs.
When configured as a PTO, a 50 percent duty
cycle pulse train is provided at a rate
up to 100 kHz for the open-loop speed
and position control of stepper motors
and servo drives. Feedback for the pulse
train outputs is provided internally using
two of the high-speed counters. When
configured as a PWM output, a fixed cycle
time output with a variable duty cycle is
provided for controlling the speed of a
motor, position of a valve, or duty cycle
of a heating element.
PLCopen motion function blocks
The SIMATIC S7-1200 supports the
open-loop speed and position control
of stepper motors and servo drives. This
functionality is easily configured using
an Axis technology object along with the
internationally accepted PLCopen motion
function blocks included within the
engineering system SIMATIC STEP 7 Basic.
Absolute, relative and velocity moves are
supported in addition to home and jog
functions.
Drive commissioning control panel
The drive commissioning control panel
included with the engineering system
SIMATIC STEP 7 Basic simplifies the
start-up and commissioning of stepper
motors and servo drives. It provides
both automatic and manual control of a
single motion axis as well as online and
diagnostics information.
The tuning of PID
control loops is fast
and accurate using the
commissioning control
panel included with
SIMATIC STEP 7 Basic.
PID functionality for closed-loop control
The SIMATIC S7-1200 supports up to
16 PID control loops for simple process
control applications. These control loops
are easily configured using a PID
controller technology object and the
supporting editors provided within the
engineering system SIMATIC STEP 7
Basic. Additionally, the SIMATIC S7-1200
supports PID auto tuning to automatically
compute the optimum tuning values for
the gain, integral time and derivative
time.
The PID commissioning control panel
The PID commissioning control panel
included within SIMATIC STEP 7 Basic
simplifies the loop tuning process. It
provides both automatic tuning and
manual control capabilities for a single
control loop and it also provides a
graphical trend view of the tuning
process.
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