Time-based I/O for high-speed signal capture
The Siemens 6ES7552-1AA01-0AB0 is a TM Timer DIDQ module for the S7-1500 system, combining 24 time-controlled digital I/O points — up to 8 inputs and 16 outputs — with onboard time stamping, counting, PWM generation, and oversampling. This means a single module can capture encoder edges with microsecond precision, generate pulse trains for stepper drives, or sample a fast sensor signal at rates exceeding the standard bus cycle.
Active lifecycle and compliance documentation
RoHS compliance is confirmed effective 20 December 2024, and the REACH candidate list disclosure notes lead (CAS 7439-92-1) above 0.1% w/w in one or more components. Export control is classified AL:N / ECCN:9N9999, meaning no special license is required for most destinations.