Quick answer: The Siemens ET 200SP PM-E 24VDC ST (order code 6ES7138-4CA01-0AA0) is a Power Module for the SIMATIC ET 200SP distributed I/O system. Segments ET 200SP station into separate power groups. Feeds 24V DC to I/O modules.
| Identification | |
| Module Name | PM-E 24VDC ST |
| Order Code (MLFB) | 6ES7138-4CA01-0AA0 |
| Module Type | Power Module |
| I/O Characteristics | |
| Channel Count | — |
| Signal Type | Power |
| Voltage / Range | 24V DC |
| Description | Segments ET 200SP station into separate power groups. Feeds 24V DC to I/O modules. |
| General | |
| System Compatibility | SIMATIC ET 200SP (PROFINET / PROFIBUS station) |
| Compatible Controllers | S7-1500, S7-1200, S7-300/400 (via IM interface module) |
| Operating Temperature | -30°C to +60°C |
| Supply Voltage | 24V DC (via ET 200SP backplane / PM module) |
| Protection Rating | IP20 |