Siemens Simatic S7-1500 / ET 200MP - Technology Modules for Counting, Measuring and Position Detection

System overview
4.8 Technology functions
Automation system
System Manual, 01/2023, A5E03461182-AK
93
4.8.4 Technology modules for counting, measuring and position detection
For technological tasks, powerful technology modules are available that perform these tasks
largely autonomously and reduce the load on the CPU. The table below shows the available
technology modules for counting, measuring and position detection.
Short designation
TM Count 2x24V
TM PosInput 2
Article number
6ES7550-1AA00-0AB0
6ES7551-1AB00-0AB0
Manual
Link
Link
Connectable encoders Incremental encoder for signals, 24 V
asymmetrical,
Pulse encoders with/without direction
signal,
Pulse encoders up/down
Incremental encoder for signals to
RS422 (5 V differential signal),
Pulse encoders with/without direction
signal,
Pulse encoders up/down,
Absolute encoders (SSI)
Max. count frequency
200 kHz
800 kHz with four-fold pulse
1 MHz
4 MHz with four-fold pulse
Integrated DI
3 DIs per counter channel for
• Start
• Stop
• Capture
• Synchronization
2 DIs per counter channel for
• Start
• Stop
• Capture
• Synchronization
Integrated DQ
2 DQs for comparators and limit values
2 DQs for comparators and limit values
Counting functions
Comparator
Adjustable counting range,
Incremental position detection
Comparator
Adjustable counting range,
Incremental
and absolute position detection
Measuring functions
Frequency
Period duration
Velocity
Frequency
Period duration
Velocity
Diagnostics interrupt
X
X
Hardware interrupt
X
X
Isochronous mode
X
X
Benefits
Technology modules for counting, measuring and position detection offer you the following
advantages:
• Fast and timely detection of events with fine resolution for high productivity and product
quality
• Hardware-level signal processing for rapid counting, measurement and position detection
for a variety of transducers
• Simple setup and commissioning of the technology functions in STEP 7
• Can be used centrally in SIMATIC S7-1500 and in ET 200MP distributed I/O system
• Quick response thanks to different hardware interrupts