Siemens 6ES7522-1BP50-0AA0 DQ MSO Digital Output Module, 8 A
Siemens S7-1500 digital output module, order code 6ES7522-1BP50-0AA0, DQ and MSO, current-sinking, 24 VDC, 8 A max per module.
Specifications
| Parameter | Value |
|---|---|
| Digital outputs | 64 |
| Output type | Transistor |
| Parameter | Value |
|---|---|
| Rated value (DC) | 24 V |
| Output current, resistive load, max. | 100 Hz |
| Output current at signal "1" (rated) | 0.3 A |
| Output current, max. per circuit / per module | 0.3 A |
| Total output current per module, max. | 8 A |
| Permissible range, upper limit (DC) | 28.8 V |
| Permissible range, lower limit (DC) | 19.2 V |
| Output voltage at signal "1" (min.) | M+ (0.5 V) |
| Residual current at signal "0", max. | 0.5 mA |
| Output current up to 60 °C, max. | 8 A |
| Power dissipation (typ.) | 4.7 W |
| Inductive shutdown voltage clamp | L+ (-53 V) |
| Load resistance, upper limit | 10 kΩ |
| Load resistance, lower limit | 80 Ω |
| Isolation between channels | No |
| Isolation between channels and backplane bus | Yes |
| Isolation, channels in groups of | 16; 32 when using SIMATIC TOP connect connection module |
| Isolation test voltage | 707 V DC (type test) |
| Parameter | Value |
|---|---|
| Short-circuit protection | No; external fusing necessary, max. 4 A per group, tripping characteristic type B or C |
| Reverse polarity protection | Yes; Through internal protection with 4 A per group |
| Diagnostics function | No |
| Diagnostic alarm | No |
| Short-circuit detection | No |
| Wire-break detection | No |
| Redundant load control | Yes |
| Output can drive a digital input | Yes |
| Parameter | Value |
|---|---|
| Output switching delay 0 to 1, max. | 100 µs |
| Output switching delay 1 to 0, max. | 500 µs |
| Switching frequency, inductive load, max. | 0.5 Hz; According to IEC 60947-5-1, DC-13 |
| Switching frequency, lamp load, max. | 10 Hz |
| Parameter | Value |
|---|---|
| Operating temperature, horizontal mount, max. | 60 °C |
| Operating temperature, horizontal mount, min. | -30 °C |
| Parameter | Value |
|---|---|
| Cable length, unshielded, max. | 600 m |
| Cable length, shielded, max. | 1 000 m |
| Width | 35 mm |
| Height | 147 mm |
| Depth | 129 mm |
| Weight (approx.) | 270 g |
Product details
Frequently asked questions
What accessories are needed for 6ES7522-1BP50-0AA0?
The front connector and cabling are ordered separately — they are not included with the module. Use the standard S7-1500 front connector and shielded cable up to 1 000 m or unshielded up to 600 m.
Output type and load drive
The 6ES7522-1BP50-0AA0 is a digital output module for the S7-1500 system, providing both standard DQ (digital output) and MSO (motor starter output) functionality. The outputs are current-sinking (PNP sourcing is not supported), so the module switches the load to ground — verify your field device common configuration. Each channel drives loads in the 80 Ω to 10 kΩ resistance range at 24 VDC. The module delivers 8 A total continuously at both 40 °C and 60 °C ambient, so no derating is needed across the typical panel temperature band.
Switching dynamics and diagnostics
Turn-on time is 100 µs max; turn-off is 500 µs max. The module does not support PWM, oversampling, or isochronous mode — it is a straightforward on/off output intended for solenoid valves, contactors, and indicator lamps rather than high-speed positioning or pulsed loads. No diagnostic alarm, no wire-break detection, and no short-circuit detection per channel. The module reports group errors via the red ERROR LED on the front. For applications that need per-channel diagnostics, a different S7-1500 DQ variant with diagnostic function would be required.
Integration and accessories
The module occupies a single S7-1500 slot at 35 mm wide, 147 mm tall, 129 mm deep. It ships without cabling — the front connector and cable are ordered separately per the system design. Unshielded cable runs up to 600 m, shielded up to 1 000 m. Firmware version V1.0.0 is field-upgradable via the memory card or TIA Portal. The module supports I&M data (I&M0 to I&M3) for asset tracking and identification in larger plants.