S5 to S7 Input Address Mapping: E → I (EN) / E (DE)
S5 to S7 input address conversion reference. Bit, byte, and word addressing for inputs (E/I). Addresses are identical — only the mnemonic changes in English.
S5 to S7 Input Address Mapping: E → I (EN) / E (DE)
Input addresses transfer directly from S5 to S7. The address numbers are identical. The only change is the mnemonic in English: E (Eingang) becomes I (Input).
Address Mapping Table
| S5 AWL | S7 STL (DE) | S7 STL (EN) | S7 SCL | Description |
|---|---|---|---|---|
| E 0.0 | E 0.0 | I 0.0 | "Input_0_0" | Input bit 0.0 |
| E 0.7 | E 0.7 | I 0.7 | "Input_0_7" | Input bit 0.7 |
| E 1.0 | E 1.0 | I 1.0 | "Input_1_0" | Input bit 1.0 |
| EB 0 | EB 0 | IB 0 | "InputByte_0" | Input byte 0 (bits 0.0–0.7) |
| EB 1 | EB 1 | IB 1 | "InputByte_1" | Input byte 1 (bits 1.0–1.7) |
| EW 0 | EW 0 | IW 0 | "InputWord_0" | Input word 0 (bytes 0+1) |
| EW 2 | EW 2 | IW 2 | "InputWord_2" | Input word 2 (bytes 2+3) |
| ED 0 | ED 0 | ID 0 | "InputDWord_0" | Input double word 0 (bytes 0–3) |
Key Facts
- Bit addresses: Identical. E 0.0 → E 0.0 (DE) / I 0.0 (EN). No conversion needed.
- Byte/Word/DWord: Identical numbering. EB 0 = IB 0, EW 0 = IW 0, ED 0 = ID 0.
- Peripheral inputs: PEW (Peripherie-Eingangswort) remains PEW in S7-300/400 DE mnemonic, becomes PIW in EN mnemonic. On S7-1500, peripheral access uses the same notation.
- No address shift. Unlike data block addresses (DW→DBW with ×2 factor), input addresses are 1:1.
Migration Note
When migrating from S5 to S7 with TIA Portal, input addresses typically remain unchanged as long as the I/O module is mapped to the same address range. The Siemens converter tool preserves input addresses automatically.
See also: Output Address Mapping (A→Q) | Marker Address Mapping (M→M)
Part of the S5→S7 Address Mapping Reference. Maintained by PLCcheck.ai.
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