Product information
Overview
Applications
- Incremental counting: Counts signals from incremental encoders, including A/B tracks with 90° phase offset and optional zero track.
- Pulse counting: Counts pulse encoders, including pulse encoders with direction and with one impulse signal per count direction.
- Position detection: Performs incremental acquisition and frequency, cycle duration, and velocity measurement with 100 ppm accuracy, depending on measuring interval and signal evaluation.
Key Features
- Counter channel and encoder input: 1 channel for a 24 V incremental encoder or pulse encoder; incremental encoder input frequency up to 200 kHz and counting frequency up to 800 kHz with quadruple evaluation.
- Digital I/O: 3 parameterizable digital inputs and 2 parameterizable transistor digital outputs; each output has a rated signal-1 current of 0.5 A.
- Encoder supply: 1 encoder-supply output provides 24 V at L+ (-0.8 V), with maximum output current of 300 mA and electronic/thermal short-circuit protection.
- Counting and measurement functions: Supports continuous counting, hardware and software gates, event-controlled stop, synchronization via digital input, 2 comparators, and parameterizable counting range.
- Diagnostics and status: Supports diagnostic alarm, hardware interrupt, supply-voltage monitoring, wire-break, short-circuit and A/B transition error diagnostics, with PWR, channel and DIAG LEDs.
- Engineering and BaseUnit: Suitable for BU type A0; configurable/integrated with STEP 7 TIA Portal from STEP 7 V15 SP1 or higher and STEP 7 V5.6 and higher.
Technical Summary
| Product type designation | TM Count 1x24V |
|---|---|
| Channel capacity | 1 channel |
| Supply voltage | 24 V DC rated value |
| Digital inputs | 3 |
| Digital outputs | 2 transistor outputs |
| Encoder input frequency | 200 kHz max. |
| Counting frequency | 800 kHz max.; with quadruple evaluation |
| Encoder supply | 24 V; 300 mA max. |
| Load voltage range | 19.2 V to 28.8 V DC |
| BaseUnit | BU type A0 |
| Firmware version | V2.0 |
Frequently Asked Questions
What encoder signals does the 6ES7138-6AA01-0BA0 support?
It supports 24 V incremental encoders and pulse encoders, including A/B tracks with 90° phase offset, A/B tracks with zero track, pulse encoders with direction, and pulse encoders with one impulse signal per count direction.
What are the module's counting limits?
The incremental encoder input frequency is up to 200 kHz. The counting frequency is up to 800 kHz with quadruple evaluation.
Which BaseUnit is suitable for this module?
It is suitable for BU type A0.
What diagnostics are available?
It supports supply-voltage monitoring, wire-break, short-circuit, A/B transition error at the incremental encoder, diagnostic alarm, and hardware interrupt.
What information should I provide for a quotation?
Provide the required quantity, destination, requested date, and project list or model-verification context.
