Siemens Simatic S7-1500/ET 200MP User manual

SIMATIC
S7-1500/ET 200MP
Technology module TM Count 2x24V
(6ES7550
-1AA01-0AB0)
Equipment Manual
12/2020
A5E31870371
-AC
Preface
Documentation guide
1
Product overview
2
Wiring
3
Configuring
address space
4
Interrupts/diagnostic
messages
5
Technical specifications
6
Dimensional drawing
A
Parameter data record
B

Siemens AG
Division Digital Factory
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E31870371-AC
Ⓟ
11/2020 Subject to change
Copyright © Siemens AG 2020.
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editions.

Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC 3
Preface
Purpose of the documentation
This manual includes module-specific information on wiring, diagnostics and the technical
specifications of the technology module.
General information regarding design and commissioning of the S7-1500 or ET 200MP is
available in the S7-1500 or ET 200MP system manuals.
The counting and measuring functions of the TM Count 2x24V technology module are
described in more detail in the Counting, Measurement and Position Detection
(http://support.automation.siemens.com/WW/view/en/59709820) Function Manual.
Conventions
Please observe notes marked as follows:
Note
A note contains important information on the product described in the documentation, on
the handling of the product and on the section of the documentation to which particular
attention should be paid.
Document history
The following table shows the most important changes to the documentation compared to
the previous edition.
Manual edition
Comments
12/2020
The following sections have been revised:
•Product overview (Page 10)
•Wiring (Page 17)
•Configuring/address space (Page 22)
•Interrupts/diagnostic messages (Page 69)
•Technical specifications (Page 77)
06/2018
The following sections have been revised:
•Product overview (Page 10)
•Configuring/address space (Page 22)
•Interrupts/diagnostic messages (Page 69)
•Parameter data record (Page 87)
06/2013
First edition

Preface
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
4Equipment Manual, 12/2020, A5E31870371-AC
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Preface
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC 5
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Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
6Equipment Manual, 12/2020, A5E31870371-AC
Table of contents
Preface................................................................................................................................................... 3
1 Documentation guide............................................................................................................................ 8
2 Product overview................................................................................................................................. 10
2.1 Properties.......................................................................................................................... 10
2.2 Functions .......................................................................................................................... 13
2.2.1 Detection of counting signals............................................................................................. 13
2.2.2 Measured value determination........................................................................................... 14
2.2.3 Switching the outputs at comparison values....................................................................... 14
2.2.4 Position input for Motion Control ....................................................................................... 15
2.2.5 Fast Mode ......................................................................................................................... 15
2.2.6 Additional functions .......................................................................................................... 15
3 Wiring .................................................................................................................................................. 17
3.1 Pin assignment and block diagram ..................................................................................... 17
4 Configuring/address space .................................................................................................................. 22
4.1 Operating with "Counting and measurement" technology object ........................................ 22
4.1.1 Configuring ....................................................................................................................... 22
4.1.2 Reaction to CPU STOP ........................................................................................................ 24
4.1.3 Parameter setting .............................................................................................................. 24
4.1.4 Address space.................................................................................................................... 29
4.1.5 Isochronous mode ............................................................................................................. 29
4.2 Position input for "Motion Control" technology object......................................................... 31
4.2.1 Configuring ....................................................................................................................... 31
4.2.2 Parameter setting .............................................................................................................. 33
4.2.3 Address space.................................................................................................................... 35
4.2.4 Control interface and feedback interface............................................................................ 35
4.2.4.1 Assignment of the control interface ................................................................................... 35
4.2.4.2 Assignment of the feedback interface ................................................................................ 35
4.2.5 Isochronous mode ............................................................................................................. 36
4.3 Manual operation (without technology object)................................................................... 37
4.3.1 Configuring ....................................................................................................................... 37
4.3.2 Reaction to CPU STOP ........................................................................................................ 39
4.3.3 Parameter setting .............................................................................................................. 40
4.3.4 Address space.................................................................................................................... 45
4.3.5 Control and feedback interface .......................................................................................... 45
4.3.5.1 Assignment of the control interface ................................................................................... 45
4.3.5.2 Assignment of the feedback interface ................................................................................ 49
4.3.6 Isochronous mode ............................................................................................................. 52

Table of contents
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC 7
4.4 Fast Mode.......................................................................................................................... 53
4.4.1 Configuring ....................................................................................................................... 53
4.4.2 Reaction to CPU STOP ........................................................................................................ 55
4.4.3 Parameter setting .............................................................................................................. 55
4.4.4 Explanation of parameters ................................................................................................. 59
4.4.5 Address space.................................................................................................................... 66
4.4.6 Assignment of the feedback interface ................................................................................ 67
4.4.7 Isochronous mode ............................................................................................................. 68
5 Interrupts/diagnostic messages .......................................................................................................... 69
5.1 Status and error display ..................................................................................................... 69
5.2 Diagnostic alarms .............................................................................................................. 72
5.3 Hardware interrupts........................................................................................................... 75
6 Technical specifications....................................................................................................................... 77
A Dimensional drawing........................................................................................................................... 85
B Parameter data record......................................................................................................................... 87
B.1 Parameter assignment and structure of parameter data record ........................................... 87
B.2 Parameter validation error ................................................................................................. 96

Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
8Equipment Manual, 12/2020, A5E31870371-AC
Documentation guide
1
The documentation for the SIMATIC S7-1500 automation system and the SIMATIC ET 200MP
distributed I/O system is arranged into three areas.
This arrangement enables you to access the specific content you require.
Basic information
The System Manual and Getting Started describe in detail the configuration, installation,
wiring and commissioning of the SIMATIC S7-1500 and ET 200MP systems. The STEP 7 online
help supports you in the configuration and programming.
Device information
Product manuals contain a compact description of the module-specific information, such as
properties, wiring diagrams, characteristics and technical specifications.
General information
The function manuals contain detailed descriptions on general topics regarding the SIMATIC
S7-1500 and ET 200MP systems, e.g. diagnostics, communication, motion control, Web
server, OPC UA.
You can download the documentation free of charge from the Internet
(http://w3.siemens.com/mcms/industrial-automation-systems-simatic/en/manual-
overview/Pages/Default.aspx).
Changes and supplements to the manuals are documented in a Product Information.
You can download the product information free of charge from the Internet
(https://support.industry.siemens.com/cs/us/en/view/68052815).

Documentation guide
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC 9
Manual Collection S7-1500/ET 200MP
The Manual Collection contains the complete documentation on the SIMATIC S7-1500
automation system and the ET 200MP distributed I/O system gathered together in one file.
You can find the Manual Collection on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/86140384).
SIMATIC S7-1500 comparison list for programming languages
The comparison list contains an overview of which instructions and functions you can use for
which controller families.
You can find the comparison list on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/86630375).
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Application examples
The application examples support you with various tools and examples for solving your
automation tasks. Solutions are shown in interplay with multiple components in the system -
separated from the focus on individual products.
You will find the application examples on the Internet
(https://support.industry.siemens.com/sc/ww/en/sc/2054).

Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
10 Equipment Manual, 12/2020, A5E31870371-AC
Product overview
2
2.1 Properties
Article number
6ES7550-1AA01-0AB0
The TM Count 2x24V technology module with article number 6ES7550-1AA01-0AB0 and
firmware version V2.0 is a compatible replacement for the TM Count 2x24V with article
number 6ES7550-1AA00-0AB0.
Firmware version
This manual describes the properties of firmware version V2.0 of the module.
View of the module
Figure 2-1 View of the TM Count 2x24V module

Product overview
2.1 Properties
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC 11
Properties
The TM Count 2x24V technology module has the following properties:
•Technical properties
–Two channels
–Interfaces:
24 V encoder signals A, B and N from sourcing, sinking or push-pull encoders and
sensors
24 V encoder supply, short-circuit-proof
DI0, DI1 and DI2 digital input signals (per channel)
DQ0 and DQ1 digital output signals (per channel)
Supply voltage L+
–Count range: 32 bits
–Monitoring of encoder signals for wire break channel by channel
–Hardware interrupts can be configured channel by channel
–Input filters for suppression of interferences at encoder inputs and digital inputs can be
configured
•Supported encoder/signal types
–24 V incremental encoder with N signal
–24 V incremental encoder without N signal
–24 V pulse encoder with direction signal
–24 V pulse encoder without direction signal
–24 V pulse encoder with up/down counting signal

Product overview
2.1 Properties
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
12 Equipment Manual, 12/2020, A5E31870371-AC
The module supports the following functions:
Table 2- 1 Version dependencies of the functions
Function Firmware ver-
sion of module
Configurable as of
STEP 7 (TIA Por-
tal)
GSD
PROFINET IO
PROFIBUS DP
Firmware update
V1.0 or higher
V13
X
—
I&M identification data
V1.0 or higher
V13
X
X
Parameter reassignment in RUN
V1.0 or higher
V13
X
X
Isochronous mode
V1.0 or higher
V13
—
—
Counting/measuring
V1.0 or higher
V13
X
X
Operating with "Counting and measurement"
technology object
V1.0 or higher
V13
—
—
Position input for "Motion Control" technolo-
gy object
V1.0 or higher
V13
—
—
Operating with "Measuring input" technology
object
V1.3 or higher
V15 with
HSP0256
—
—
Fast Mode
V2.0 or higher
V16 with
HSP0332
X
X
Display of digital input states in the process
image for position detection for "Motion Con-
trol" technology object
V2.0 or higher
V16 with
HSP0332
—
—
Firmware versions V1.x are available for the
article number 6ES7550-1AA00-0AB0. Firmware version V2.0 is available for the
article number 6ES7550-1AA01-0AB0.
Accessories
The following components are supplied with the technology module and can also be ordered
separately as spare parts:
•Shield bracket
•Shield terminal
•Power supply element
•Labeling strip
•U-connector
Other components
The following component needs to be ordered separately:
•Front connectors, including potential jumpers and cable ties
You can find information on the front connector in system manual S7-1500 / ET 200MP
Automation System (http://support.automation.siemens.com/WW/view/en/59191792),
section "Accessories".

Product overview
2.2 Functions
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC 13
2.2 Functions
2.2.1 Detection of counting signals
Counting is the detecting and adding up of events. The counters of the technology module
detect encoder signals and pulses and evaluate them accordingly. The count direction can be
specified using encoder or pulse signals or through the user program.
You can control the counting processes with the digital inputs. In addition, you can read the
signal state of the respective digital input via the feedback interface.
You can specify the counter characteristics using the functions described below.
Counting limits
The counting limits define the counter value range used. The counting limits are configurable
and can be modified during runtime with the user program.
You can configure the behavior of the counter at the counting limits.
Start value
You can configure a start value within the counting limits. The start value can be modified
during runtime with the user program.
Gate control
You can define the time window in which the count signals are acquired with the hardware
gate (HW gate) and software gate (SW gate).
Capture (Latch)
You can configure an external reference signal edge that triggers the saving of the current
counter value as Capture value. The following external signals can trigger the Capture
function:
•Rising or falling edge of a digital input
•Both edges of a digital input
•Rising edge of the N signal at the encoder input
The "Frequency of Capture function" parameter specifies whether the function is executed at
each configured edge or only once after each enable.
Measuring input
If you use Position input for Motion Control (Page 15), you can use the "Measuring input"
technology object to execute a measuring input function with a hardware digital input.
Hardware interrupts
The technology module can trigger a hardware interrupt in the CPU, for example, if a
comparison event occurs, in the event of overflow or underflow, in the event of a zero
crossing of the counter and/or of a change of count direction (direction reversal). You can
specify which events during operation are to trigger a hardware interrupt.

Product overview
2.2 Functions
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
14 Equipment Manual, 12/2020, A5E31870371-AC
2.2.2 Measured value determination
The following high-accuracy measurement functions are available (accuracy up to 100 ppm):
•Frequency measurement with the unit of hertz
•Period measurement with the unit of seconds
•Velocity measurement with a flexibly adaptable unit
Update time
You can configure the interval at which the technology module updates the measured values
cyclically as the update time.
Gate control
You can define the time window in which the count signals are acquired with the hardware
gate (HW gate) and software gate (SW gate).
2.2.3 Switching the outputs at comparison values
The available digital outputs DQ0 and DQ1 can be directly activated/switched by the specified
comparison values or via the user program. The comparison values are configurable and can
be modified during runtime with the user program. This enables very fast reaction times to be
achieved.
Comparison values in the Counting mode
You define two comparison values in the Counting mode. If the current counter value meets
the configured comparison condition, the corresponding digital output can be set to directly
initiate control processes in the process.
Comparison values in the Measuring mode
You define two comparison values in the Measuring mode. If the current measured value
meets the configured comparison condition, the corresponding digital output can be set to
directly initiate control processes in the process.

Product overview
2.2 Functions
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC 15
2.2.4 Position input for Motion Control
You can use the technology module for position detection for the following axis technology
objects of S7-1500 Motion Control :
•TO_PositioningAxis
•TO_SynchronousAxis
•TO_ExternalEncoder
In this operating mode, you can use the measuring input technology object
(TO_MeasuringInput) to execute a measuring input function with hardware digital input DI1.
Additional information
You can find a detailed description of the use of Motion Control and its configuration in the
following:
•Function manual S7-1500 Motion Control available for download on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/59381279)
•Function manual S7-1500T Motion Control available for download on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109481326)
2.2.5 Fast Mode
You can use the technology module in Fast Mode for very fast input of the counter value in
case of compressed functionality. A reduced feedback interface but no control interface is
available in Fast Mode. This allows you to use a shorter send clock for the CPU.
2.2.6 Additional functions
Synchronization
You can configure the edge of an external reference signal that loads 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
The "Frequency of synchronization" parameter specifies whether the function is executed at
each configured edge or only once after each enable.
Hysteresis
You can specify a hysteresis for the comparison values within which a digital output will be
prevented from switching again.

Product overview
2.2 Functions
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
16 Equipment Manual, 12/2020, A5E31870371-AC
Diagnostic interrupt
The technology module can trigger diagnostic interrupts. You enable the diagnostic
interrupts in the device configuration.
Input filter
To suppress interference, you can configure an input filter for the 24 V encoder inputs and for
the digital inputs.
Isochronous mode
The technology module supports the "Isochronous mode" system function. This system
function enables counter values and measured values to be acquired in a defined system
cycle.

Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC 17
Wiring
3
3.1 Pin assignment and block diagram
You connect the encoder signals, the digital input and output signals and the encoder
supplies to the 40-pin front connector of the technology module. In addition, you connect
the supply voltage for supplying the module and digital outputs and for producing the
encoder supply voltages to the 4-pin power supply element.
You can find the pin assignment of the front connector and the power supply element in the
following two sections.
You can find information on wiring the front connector, shielding the cable, etc., in system
manual S7-1500 / ET 200MP Automation System
(http://support.automation.siemens.com/WW/view/en/59191792), section Wiring.
Pin assignment for the power supply element
The power supply element is plugged onto the front connector and serves to supply the
technology module. For this, you must connect the supply voltage to terminal 41 (L+) and
terminal 44 (M). Use terminal 42 (L+) and terminal 43 (M) to loop the supply voltage through
to the next module.
Figure 3-1 Connection of power supply element
L+
Supply voltage 24 V DC
M
Ground for supply voltage
An internal protective circuit protects the technology module from polarity reversal of the
supply voltage. The technology module monitors the connection of the supply voltage.
Encoder supply
For supplying the encoders and sensors connected to the digital inputs, the technology
module provides a 24 V DC supply voltage at output 24VDC (terminal 9) with reference to M
(terminal 10). The voltage is monitored for short-circuit and overload.

Wiring
3.1 Pin assignment and block diagram
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
18 Equipment Manual, 12/2020, A5E31870371-AC
Digital inputs DI0, DI1 and DI2
The digital inputs are used for gate control, synchronization and the Capture function.
The digital inputs of the two counter channels are not isolated from one another.
Input delay for digital inputs
In order to suppress signal noise you can configure an input delay for the digital inputs.
Note
If you select the "None" or "0.05
ms" option, you must use shielded cables for connection of
the digital inputs.
Digital outputs DQ0 and DQ1
The digital outputs of the two counter channels are not isolated from one another.
The digital outputs are 24 V sourcing outputs in reference to M and can carry a rated load
current of 0.5 A. They are protected against overload and short-circuit.
Relays and contactors can be directly connected without an external protective circuit. You
can find information on the maximum possible operating frequencies and the inductance
values of the inductive loads connected to the digital outputs in section Technical
specifications (Page 77).
24 V encoder signals/count signals
The 24 V encoder signals are designated with the letters A, B and N. You can connect the
following encoder types:
•Incremental encoder with N signal:
The A, B and N signals are connected using the correspondingly marked terminals. The
A and B signals are the two 90° phase-shifted incremental signals. N is the zero mark
signal that supplies one pulse per revolution.
•Incremental encoder without N signal:
The A and B signals are connected using the correspondingly marked terminals. The
A and B signals are the two 90° phase-shifted incremental signals. The N terminal remains
unconnected.
•Pulse encoder without direction signal:
The counting signal is connected to the A terminal. The count direction can be specified
via the control interface. The B and N terminals remain unconnected.

Wiring
3.1 Pin assignment and block diagram
Technology module TM Count 2x24V (6ES7550-1AA01-0AB0)
Equipment Manual, 12/2020, A5E31870371-AC 19
•Pulse encoder with direction signal:
The counting signal is connected to the A terminal. The direction signal is connected to
the B terminal. Counting down takes place at a high level of the direction signal. The N
terminal remains unconnected.
•Pulse encoder with up/down counting signal:
The up count signal is connected to the A terminal. The down counting signal is
connected to the B terminal. The N terminal remains unconnected.
The inputs of the two counter channels are not isolated from each other. The inputs are
isolated from the backplane bus.
You can connect the following encoders or sensors to the A, B and N inputs:
•Sourcing output:
The A, B and N inputs are switched by the encoder or sensor to 24VDC .
•Sinking output:
The A, B and N inputs are switched by the encoder or sensor to ground M .
•Push-pull:
The A, B and N inputs are switched by the encoder or sensor alternately to 24VDC and
ground M . Monitoring for wire break is possible with this type of encoder/sensor.