The Siemens ET 200SP, TM Count 1x24V (6ES7138-6AA01-0BA0) is a high-performance module designed for industrial automation applications. It operates at a rated voltage of 24V DC and features a compact design with dimensions of 15 x 73 x 58 mm, making it ideal for space-constrained setups. With a lightweight construction of just 45 grams, its mounting is effortless via DIN-rail. The module supports an operating temperature range from -20C to +60C, ensuring reliable performance in diverse environmental conditions. It offers seamless operation at frequencies of 50/60 Hz and consists of input and output ratings of 60 mA and 2 mA respectively. Rated at IP20 protection level, it ensures a secure and efficient setup while managing a humidity tolerance of up to 95%. The device demonstrates low power loss (1W) and features 707 V DC isolation for added safety. Finished in black, it combines durability with aesthetic appeal to cater to advanced automation requirements.

General Information

• Product type: TM Count 1x24V

• Firmware version: V2.0

• Firmware update: Yes

• BaseUnit: BU Type A0

• Color code: CC00

• I&M data: I&M0I&M3

• Isochronous mode: Supported

Engineering

• TIA Portal: STEP 7 V15 SP1 or higher

• STEP 7 Classic: V5.6 or higher

• PROFIBUS GSD: Revision 3 & 5+

• PROFINET GSDML: V2.34

Electrical Specifications

Supply Voltage

• Rated: 24 V DC

• Range: 19.228.8 V

• Reverse polarity protection: Yes

Current

• Max current consumption: 60 mA (no load)

Encoder Supply

• Number of outputs: 1

• Encoder Voltage: 24 V (L+ 0.8V)

• Short-circuit protection: Yes

• Max output current: 300 mA

Power Loss

• Typical: 1 W

Address Area

• Inputs: 16 bytes (Fast mode: 4 bytes)

• Outputs: 12 bytes (Motion Control: 4 bytes, Fast mode: 0 bytes)

Hardware Configuration

• Automatic encoding: Yes

• Mechanical coding: Type B

Digital Inputs (DI)

• Number of DI: 3

• Parameterizable: Yes

• Type: IEC 61131 Type 3

• Functions:

  • Gate start/stop

  • Capture

  • Synchronization

  • Probe

  • Free DI

Voltage Levels:

• Rated: 24 V

• Signal 0: 5 to +5 V

• Signal 1: +11 to +30 V

• Inrush: 30 V brief allowed

Current:

• Signal 1 (typ.): 2.5 mA

Input Delay (parameterizable):

• Options: 0 / 0.05 / 0.1 / 0.4 / 0.8 / 1.6 / 3.2 / 12.8 / 20 ms

Cable Length:

• Shielded: 1000 m

• Unshielded: 600 m

Digital Outputs (DQ)

• Type: Transistor

• Number: 2

• Max switching current: 0.5 A per output

• Short-circuit protection: Yes

• Switching delay: 50 s

• Max switching frequency:

  • Resistive loads: 10 kHz

  • Inductive loads: 0.5 Hz

  • Lamp loads: 10 Hz

• Total current per module: 1 A

Encoder Support

Supported Encoder Types

• Incremental (A/B phase, with or without zero track)

• Pulse encoder

• Direction pulses

• 2-wire sensors (max quiescent: 1.5 mA)

Encoder Performance

• Voltage: 24 V

• Max input freq: 200 kHz

• Max counting freq: 800 kHz (quadruple evaluation)

• Shielded cable length:

  • Up to 600 m (depends on encoder quality)

  • At 200 kHz: max 50 m

• Signal filter: Parameterizable

Diagnostics / Status

• Substitute values: Yes

• Diagnostic alarm: Yes

• Hardware interrupt: Yes

• Detection for:

  • Wire-break

  • Short-circuit

  • A/B transition errors

  • Group errors

  • Supply monitoring

LED Indicators

• PWR (green)

• DI/Channel status (green)

• DIAG (green/red)

• Forward count (green)

• Backward count (green)

Integrated Functions

Counter

• Number: 1

• Max frequency: 800 kHz

• Fast mode: Yes

• Supports TO High_Speed_Counter

Counting Features

• Continuous counting

• Hardware/software gate

• Event stop

• Synchronization

• Parameterizable counter behavior

• Adjustable counting range

Comparators

• Number: 2

• Direction dependent: Yes

• Adjustable in user program

Measuring Functions

• Measuring time: Adjustable

• Dynamic measurement

• Thresholds: 2

Measurement Ranges

• Frequency: 0.04 Hz to 800 kHz

• Cycle duration: 1.25 s to 25 s

Accuracy for frequency, cycle and velocity measurements: 100 ppm

Potential Separation

• Between channels & backplane bus: Yes

• Isolation test: 707 V DC

Environmental Conditions

• Operating temperature:

  • Horizontal: 30 to +60 C

  • Vertical / Floor / Ceiling: 30 to +50 C

• Max installation altitude: 5000 m
  (Restrictions above 2000 m)

Compatibility

• SIMATIC S7-300

• SIMATIC S7-400

• SIMATIC S7-1200

• SIMATIC S7-1500

• Standard PROFIBUS / PROFINET controllers

Dimensions & Weight

• Width: 15 mm

• Height: 73 mm

• Depth: 58 mm

• Weight: ~45 g

Technical Details 

FAQs of SIEMENS ET 200SP, TM Count 1x24V 6ES7138-6AA01-0BA0: