Product Overview
Technical Summary
| Product designation | TM PosInput 2 |
|---|---|
| Channels | 2 |
| Encoder inputs | RS-422 incremental encoder or SSI absolute encoder |
| Digital inputs | 4; 2 per channel |
| Digital outputs | 4 transistor outputs; 2 per channel |
| Load voltage | 24 V DC; 19.2 V to 28.8 V DC |
| Counting frequency, max. | 4 MHz; with quadruple evaluation |
| Firmware version | V1.3 |
| Mounting | S7-1500 mounting rail |
Key Features
- Product designation: TM PosInput 2 counter and position detection module.
- Encoder interfaces: Supports RS-422 incremental encoders and SSI absolute encoders; TTL 5 V is supported for push-pull encoders only.
- Channels and digital I/O: 2 channels, with 2 digital inputs and 2 transistor digital outputs per channel.
- Supply and mounting: Rated load voltage: 24 V DC; permissible range: 19.2 V to 28.8 V DC. Rail mounting on an S7-1500 mounting rail.
- Counting performance: Maximum counting frequency: 4 MHz with quadruple evaluation; 2 counters.
- Firmware and engineering: Firmware version V1.3; FW update possible. Configurable/integrated with STEP 7 TIA Portal from V12 (FW V1.0) to V15 (FW V1.3).
Applications
- Counting: The module supports continuous counting, hardware gating via digital input, software gating, event-controlled stopping, and synchronization via digital input.
- Position detection: The module supports incremental and absolute acquisition and is suitable for S7-1500 Motion Control.
- Frequency and cycle-duration measurement: The module supports parameterizable measuring functions, frequency measurement from 0.04 Hz to 4 MHz, and cycle-duration measurement from 0.25 μs to 25 s.
Frequently Asked Questions
What does Siemens 6ES7551-1AB00-0AB0 identify?
It identifies the SIMATIC S7-1500 TM PosInput 2 counter and position detection module.
Which encoder interfaces and channels does 6ES7551-1AB00-0AB0 provide?
It provides 2 channels for RS-422 incremental encoders or SSI absolute encoders, with 2 digital inputs and 2 transistor digital outputs per channel.
Which firmware and engineering versions are supplied?
Firmware version is V1.3, and FW update is possible. STEP 7 TIA Portal is configurable/integrated from V12 (FW V1.0) to V15 (FW V1.3).
What details should be checked when requesting a quotation?
Check the complete order number, required quantity, and destination.
