The following requirements must be met: • In order to understand these Getting Started instructions, you need general knowledge about automation technology and also need to be familiar with the base software, STEP 7. • You need an S7-300 station consisting of: - Power supply (PS) with 2 A - CPU 315F-2 DP with an inserted MMC - Distributed I/O system ET 200S with: - Interface module IM 151-1 HIGH FEATURE - Power module PM-E 24-48 V DC - Terminal modules such as TM-E30S44-01 and TM-E30C44-01 - Fail-safe digital input module ET 200S 4/8 F-DI DC24V - Fail-safe digital output module ET 200S 4 F-DO DC24V / 2A - Power module PM-E 24 V DC - Digital electronic module 2DI 24 V DC ST - SIGUARD laser scanner LS4-4/P1 with PROFIBUS interface • The following software packages must be correctly installed on your programming device featuring an MPI interface: