Siemens improved the performance of the two technology modules 2 PULSE and 1 STEP for the Simatic ET 200S distributed I/O system and has also added new functions. On the dual-channel technology module 2 PULSE that controls actuators and valves it is now possible to measure and precisely regulate the current that is output. This means a further improvement in the precision of control in isochronous mode. A new traversing task for approaching a specified position has been integrated in the single-channel stepper motor module 1 STEP for positioning tasks in combination with stepper motors.
Distributed I/O System Modules
