Key Features
- Counter and position detection module: TM PosInput 2 for RS-422 incremental encoder or SSI absolute encoder.
- 2 channels with I/O per channel: 2 channels, 2 DI, 2 DQ per channel.
- Engineering integration: STEP 7 TIA Portal configurable/integrated from version V12 (FW V1.0) … V15 (FW V1.3)/V12 (FW V1.0), V13 (FW V1.1).
- Encoder and signal functions: RS 422 and TTL 5 V support, plus SSI to RS-422, 10 … 40 bit telegram length, and 2 MHz clock frequency, max.
- Diagnostics and status indication: Diagnostic alarm, hardware interrupt, supply voltage monitoring, wire break, short-circuit, and LED status display.
- Mounting and supply: Rail mounting on S7-1500 mounting rail, 24 V load voltage, and 1.3 W power consumption from the backplane bus.
Applications
- Position detection with incremental encoders: For position detection using RS-422 incremental encoder signals.
- Position detection with SSI absolute encoders: For position detection using SSI absolute encoder signals.
Technical Summary
| Product type designation | TM PosInput 2 |
|---|---|
| Firmware version | V1.3 |
| Engineering with STEP 7 TIA Portal configurable/integrated from version | V12 (FW V1.0) … V15 (FW V1.3)/V12 (FW V1.0), V13 (FW V1.1) |
| Number of channels | 2 |
| Digital inputs | 4; 2 per channel |
| Digital outputs | 4; 2 per channel |
| Load voltage L+ rated value (DC) | 24 V |
| Load voltage L+ permissible range | 19.2 V … 28.8 V |
| Encoder supply per channel | 4; One 5V and 24V encoder supply per channel |
| Encoder supply 5 V | 5.2 V ±2 % |
| Power consumption from the backplane bus | 1.3 W |
| Interface types | TTL 5 V and RS 422 |
Frequently Asked Questions
What is Siemens 6ES7551-1AB00-0AB0 used for?
It is a TM PosInput 2 counter and position detection module for RS-422 incremental encoder or SSI absolute encoder signals.
How many channels and I/O does 6ES7551-1AB00-0AB0 have?
It has 2 channels, with 2 DI and 2 DQ per channel.
Which encoder interfaces does the TM PosInput 2 support?
It supports RS-422 incremental encoder or SSI absolute encoder, and the interface types include TTL 5 V and RS 422.
What supply and mounting details matter for ordering 6ES7551-1AB00-0AB0?
The module uses 24 V load voltage, has rail mounting on the S7-1500 mounting rail, and consumes 1.3 W from the backplane bus.
