Description
MS 374 — Memory
Siemens · MS 374 · 6ES5374-2FH21
Description
The MS 374 (6ES5374-2FH21) is a long-form memory card for the SIMATIC S5-135U/155U system, using Flash-EPROM technology with 256 KByte (16-bit) capacity, used to store the STEP 5 user program.
Key specifications
Parameter | Value |
Function | Program memory card for S5-135U/155U |
Memory type | Flash-EPROM |
Capacity | 256 KByte (16-bit) |
Form factor | Long-form memory card |
Mounting | Plug-in submodule on S5-135U/155U CPU |
Reference
Field | Value |
Manufacturer (OEM) | Siemens |
Model | MS 374 |
Part number | 6ES5374-2FH21 |
Category | Memory |
System family | SIMATIC S5-135U/155U |
Stores quantity | 5 |
Data confidence | high |
Manuals filed (007 - Manuals)
- Manual CP1430 English Vol1.pdf — S5-115U system reference (CP/comms volume)
- 02 - CPU948 Programming Manual.pdf — S5 CPU programming reference (115U/155H family)
Notes
Verified via sps-service.eu and process-informatik.de datasheets confirming MS 374 Flash-EPROM 256KB (16-bit), long form factor.
Source: Spare Parts List for Sales V7 (Bohemia Market / BM Global stores inventory). Filed in the AI HW Knowledge Base.