Data sheet 6ES7550-1AA01-0AB0
SIMATIC S7-1500, TM count 2x 24 V counter module, 2 channels for 24 V
incremental encoder or pulse encoder, 3 DI, 2 DQ per channel
General information
Product type designation TM Count 2x24V
Firmware version V2.0
● FW update possible Yes
Product function
● I&M data Yes; I&M0 to I&M3
● Isochronous mode Yes
Engineering with
● STEP 7 TIA Portal configurable/integrated from version V16 with HSP 0332 / V17
● PROFIBUS from GSD version/GSD revision GSD Revision 5
● PROFINET from GSD version/GSD revision V2.3 / -
Installation type/mounting
Rail mounting Yes; S7-1500 mounting rail
Supply voltage
Load voltage L+
● Rated value (DC) 24 V
● permissible range, lower limit (DC) 19.2 V
● permissible range, upper limit (DC) 28.8 V
● Reverse polarity protection Yes
Input current
Current consumption, max. 75 mA; without load
Encoder supply
Number of outputs 1; A common 24V encoder supply for both channels
24 V encoder supply
● 24 V Yes; L+ (-0.8 V)
● Short-circuit protection Yes
● Output current, max. 1 A; total current of all encoders/channels
Power
Power available from the backplane bus 1.3 W
Power loss
Power loss, typ. 4W
Address area
Address space per module
● Inputs 32 byte; 16 bytes per channel; 4 bytes for fast mode
● Outputs 24 byte; 12 bytes per channel; 4 bytes for Motion Control, 0 bytes for fast mode
Digital inputs
Number of digital inputs 6; 3 per channel
Digital inputs, parameterizable Yes
Input characteristic curve in accordance with IEC 61131, type 3 Yes
Digital input functions, parameterizable
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● Gate start/stop Yes
● Capture Yes
● Synchronization Yes
● Freely usable digital input Yes
● Probe Yes
Input voltage
● Type of input voltage DC
● Rated value (DC) 24 V
● for signal "0" -5 ... +5 V
● for signal "1" +11 to +30V
● permissible voltage at input, min. -30 V; -5 V continuous, -30 V brief reverse polarity protection
● permissible voltage at input, max. 30 V
Input current
● for signal "1", typ. 2.5 mA
Input delay (for rated value of input voltage)
for standard inputs
— parameterizable Yes; none / 0.05 / 0.1 / 0.4 / 0.8 / 1.6 / 3.2 / 12.8 / 20 ms
— at "0" to "1", min. 6 µs; for parameterization "none"
— at "1" to "0", min. 6 µs; for parameterization "none"
for technological functions
— parameterizable Yes
Cable length
● shielded, max. 1 000 m
● unshielded, max. 600 m
Digital outputs
Type of digital output Transistor
Number of digital outputs 4; 2 per channel
Digital outputs, parameterizable Yes
Short-circuit protection Yes; electronic/thermal
● Response threshold, typ. 1A
Limitation of inductive shutdown voltage to L+ (-53 V)
Controlling a digital input Yes
Digital output functions, parameterizable
● Switching tripped by comparison values Yes
● Freely usable digital output Yes
Switching capacity of the outputs
● with resistive load, max. 0.5 A; Per digital output
● on lamp load, max. 5W
Load resistance range
● lower limit 48 Ω
● upper limit 12 kΩ
Output voltage
● Type of output voltage DC
● for signal "1", min. 23.2 V; L+ (-0.8 V)
Output current
● for signal "1" rated value 0.5 A; Per digital output
● for signal "1" permissible range, max. 0.6 A; Per digital output
● for signal "1" minimum load current 2 mA
● for signal "0" residual current, max. 0.5 mA
Output delay with resistive load
● "0" to "1", max. 50 µs
● "1" to "0", max. 50 µs
Switching frequency
● with resistive load, max. 10 kHz
● with inductive load, max. 0.5 Hz; Acc. to IEC 60947-5-1, DC-13; observe derating curve
● on lamp load, max. 10 Hz
Total current of the outputs
● Current per module, max. 2A
Cable length
● shielded, max. 1 000 m
● unshielded, max. 600 m
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Encoder
Connectable encoders
● 2-wire sensor Yes
— permissible quiescent current (2-wire sensor), max. 1.5 mA
Encoder signals, incremental encoder (asymmetrical)
● Input voltage 24 V
● Input frequency, max. 200 kHz
● Counting frequency, max. 800 kHz; with quadruple evaluation
● Cable length, shielded, max. 600 m; depending on input frequency, encoder and cable quality; max. 50 m at
200 kHz
● Signal filter, parameterizable Yes
● Incremental encoder with A/B tracks, 90° phase offset Yes
● Incremental encoder with A/B tracks, 90° phase offset Yes
and zero track
● pulse encoder Yes
● pulse encoder with direction Yes
● pulse encoder with one impulse signal per count direction Yes
Interface types
● Source/sink input Yes
● Input characteristic curve in accordance with IEC 61131, Yes
type 3
Interrupts/diagnostics/status information
Alarms
● Diagnostic alarm Yes
● Hardware interrupt Yes
Diagnoses
● Monitoring the supply voltage Yes
● Wire-break Yes
● Short-circuit Yes
● A/B transition error at incremental encoder Yes
Diagnostics indication LED
● RUN LED Yes; green LED
● ERROR LED Yes; red LED
● MAINT LED Yes; Yellow LED
● Monitoring of the supply voltage (PWR-LED) Yes; green LED
● Channel status display Yes; green LED
● for channel diagnostics Yes; red LED
Integrated Functions
Counter Yes
● Number of counters 2
● Counting frequency, max. 800 kHz; with quadruple evaluation
Fast mode Yes
Counting functions
● Can be used with TO High_Speed_Counter Yes
● Continuous counting Yes
● Counter response parameterizable Yes
● Hardware gate via digital input Yes
● Software gate Yes
● Event-controlled stop Yes
● Synchronization via digital input Yes
● Counting range, parameterizable Yes
Comparator
— Number of comparators 2; Per channel
— Direction dependency Yes
— Can be changed from user program Yes
Position detection
● Incremental acquisition Yes
● Suitable for S7-1500 Motion Control Yes
● suitable for SIMOTION Yes
Measuring functions
● Measuring time, parameterizable Yes
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● Dynamic measurement period adjustment Yes
● Number of thresholds, parameterizable 2
Measuring range
— Frequency measurement, min. 0.04 Hz
— Frequency measurement, max. 800 kHz
— Cycle duration measurement, min. 1.25 µs
— Cycle duration measurement, max. 25 s
Accuracy
— Frequency measurement 100 ppm; depending on measuring interval and signal evaluation
— Cycle duration measurement 100 ppm; depending on measuring interval and signal evaluation
— Velocity measurement 100 ppm; depending on measuring interval and signal evaluation
Potential separation
Potential separation channels
● between the channels No
● between the channels and backplane bus Yes
● Between the channels and load voltage L+ No
Isolation
Isolation tested with 707 V DC (type test)
Ambient conditions
Ambient temperature during operation
● horizontal installation, min. -30 °C
● horizontal installation, max. 60 °C; Please note derating for inductive loads
● vertical installation, min. -30 °C
● vertical installation, max. 40 °C; Please note derating for inductive loads
Altitude during operation relating to sea level
● Installation altitude above sea level, max. 5 000 m; restrictions for installation altitudes > 2 000 m, see ET 200MP system
manual
Decentralized operation
to SIMATIC S7-300 Yes
to SIMATIC S7-400 Yes
to SIMATIC S7-1200 Yes
to SIMATIC S7-1500 Yes
to standard PROFIBUS master Yes
to standard PROFINET controller Yes
Dimensions
Width 35 mm
Height 147 mm
Depth 129 mm
Weights
Weight, approx. 250 g
last modified: 3/12/2024
6ES75501AA010AB0 Subject to change without notice
2/3/2025
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