Siemens SIPLUS LOGO! DM8 24R, 4 DI / 4 relay outputs, 24 V AC/DC, -25 to +70 °C, 36 mm wide.
| Parameter | Value |
|---|---|
| Digital inputs | 4 |
| Digital outputs | 4; Relays |
| Parameter | Value |
|---|---|
| Permissible range, lower limit (DC) | 20.4 V; 22 V @ >55 °C |
| Permissible range, upper limit (DC) | 28.8 V; 27.5 V @ >55 °C |
| Short-circuit protection | No |
| Parameter | Value |
|---|---|
| Temperature, min. | -25 °C; = Tmin |
| Temperature, max. | 70 °C; = Tmax; 55 °C @ UL/cUL use |
| Ambient temperature vs. altitude/pressure derating | Tmin ... Tmax at 1 080 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax - 20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m) |
| Parameter | Value |
|---|---|
| Width | 36 mm; 2 DU |
| Height | 90 mm |
| Depth | 55 mm |
The 6AG1055-1HB00-2XB0: Each relay output switches up to 5 A resistive (3 A above 55 °C) and up to 3 A inductive (1 A above 55 °C), with a total resistive load of 10 A across all four relays. The supply voltage range is 20.4–28.8 V DC (22–27.5 V above 55 °C).
Mounts on 35 mm DIN rail, 36 mm wide (2 spacing units), 55 mm deep; use only within an IP20 enclosure. Above 55 °C derate relay currents per resistive and inductive tables and restrict DC supply to 22–27.5 V.
Resistive load: 5 A per relay (3 A above 55 °C, 5 A for <15 s), total 10 A for all four. Inductive load: 3 A per relay (1 A above 55 °C, 3 A for <15 s).
No. The 6AG1055-1HB00-2XB0 is a narrow LOGO! expansion module (36 mm wide, 55 mm deep) with relay outputs, while the 6AG1278-4BD32-4XB0 is a wider SIPLUS HMI (45 mm wide, 75 mm deep). They are not footprint-compatible or functionally interchangeable.
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