Siemens 6ES7422-1BL00-0AA0
SM 422 digital output, 32 DO, 24 V DC, 0.5 A
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Siemens SIMATIC S7-400 SM 422 digital output module: 32 isolated outputs, 24 V DC, 0.5 A each, electronic short-circuit protection.
- Manufacturer
- Siemens
- Manufacturer part no.
- 6ES7422-1BL00-0AA0
- Product family
- SIMATIC S7-400 PLC CPUs, I/O and Function Modules
- Type
- Digital output module
- Category
- PLCs and I/O › Digital I/O modules
- Lifecycle
- Discontinued
- OEM successor
- Not stated
- Technical datasheet
- Data sheet
Technical specifications
- Manufacturer
- Siemens
- Manufacturer part no.
- 6ES7422-1BL00-0AA0
- Type
- Digital output module
- Application
- Digital output module
- Used with
- SIMATIC S7-400 rack
- Load voltage L+ / Rated value (DC)
- 24 V
- Load voltage L+ / permissible range, lower limit (DC)
- 20.4 V
- Load voltage L+ / permissible range, upper limit (DC)
- 28.8 V
- Input current / from load voltage L+ (without load), max.
- 30 mA
- Input current / from backplane bus 5 V DC, max.
- 200 mA
- Power loss, typ.
- 4 W
- Number of digital outputs
- 32
- Digital outputs / Short-circuit protection
- Yes; Clocked electronically
- Short-circuit protection / Response threshold, typ.
- 0.7 to 1.5 A
- Digital outputs / Limitation of inductive shutdown voltage to
- -27 V
- Controlling a digital input
- Yes; possible
- Switching capacity of the outputs / on lamp load, max.
- 5 W
- Load resistance range / lower limit
- 48 Ω
- Load resistance range / upper limit
- 4 kΩ
- Output voltage / for signal "1", min.
- L+ (-0.3 V)
- Output current / for signal "1" rated value
- 0.5 A
- Output current / for signal "1" permissible range, min.
- 5 mA
- Output current / for signal "1" permissible range, max.
- 0.6 A
- Output current / for signal "0" residual current, max.
- 0.3 mA
- Output delay with resistive load / "0" to "1", max.
- 1 ms
- Output delay with resistive load / "1" to "0", max.
- 1 ms
- Parallel switching of two outputs / for uprating
- Yes; possible (only outputs of the same group)
- Parallel switching of two outputs / for redundant control of a load
- Yes; possible (only outputs of the same group)
- Switching frequency / with resistive load, max.
- 100 Hz
- Switching frequency / with inductive load, max.
- 0.5 Hz
Show all 45 specificationsShow fewer
- Switching frequency / with inductive load (acc. to IEC 60947-5-1, DC13), max.
- 2 Hz; 2 Hz at 0.3 A; 0.5 Hz at 0.5 A
- Switching frequency / on lamp load, max.
- 10 Hz
- Total current of the outputs (per group) / all mounting positions / up to 40 °C, max.
- 4 A
- Total current of the outputs (per group) / all mounting positions / up to 60 °C, max.
- 2 A; 8 adjacent outputs each
- Cable length / shielded, max.
- 1 000 m
- Cable length / unshielded, max.
- 600 m
- Interrupts/diagnostics/status information / Diagnostics function
- No
- Potential separation digital outputs / between the channels
- No
- Potential separation digital outputs / between the channels, in groups of
- 32
- Potential separation digital outputs / between the channels and backplane bus
- Yes
- Isolation tested with
- 500 V AC/707 V DC, type test
- Width
- 25 mm
- Height
- 290 mm
- Depth
- 210 mm
- Weight, approx.
- 600 g
Technical documents (1)
Key features
- 32 digital outputs, 24 V DC, 0.5 A each
- Clocked electronic short-circuit protection
- Load voltage 20.4 to 28.8 V DC
- 25 mm wide, 290 mm high module for the S7-400 rack
- Discontinued by Siemens on 1 October 2026
About the Siemens 6ES7422-1BL00-0AA0
The Siemens 6ES7422-1BL00-0AA0 is a 32-channel S7-400 digital output module at 24 V DC and 0.5 A per output, the output companion to the SM 421 input module 6ES7421-1BL01-0AA0. Siemens's data sheet gives clocked electronic short-circuit protection, up to 5 W of lamp load per output and a 25 × 290 × 210 mm module. SiePortal shows its phase-out announced on 1 October 2025 and its product cancellation on 1 October 2026.
What is the 6ES7422-1BL00-0AA0 used for?
It switches 24 V DC valves, contactor coils and lamps from an S7-400 CPU.
Lifecycle and successor
Discontinued.
Before you order
What to photograph or confirm so the right unit is quoted.
Check the order number on the module; S7-400 I/O modules are a different size from S7-300 modules and do not fit an S7-300 rack.
Other parts in the Siemens SIMATIC S7-400 family
Listed for reference. They differ from the 6ES7422-1BL00-0AA0 in rating, supply, interface or function and are not interchangeable with it unless Siemens says so. Match the part number on your unit.
| Product | Type | Lifecycle | Qty Available | Price | Action |
|---|---|---|---|---|---|
| Siemens 6ES7417-4XT05-0AB0CPU 417-4, 30 MB, MPI, PROFIBUS DP and 2 IF slots | PLC CPU | Discontinued | On Request | On request | View |
| Siemens 6ES7414-4HM14-0AB0CPU 414-4H for S7-400H/F/FH, 2.8 MB, MPI/DP, DP and 2 sync interfaces | Redundant PLC CPU (H-CPU) | Discontinued | On Request | On request | View |
| Siemens 6ES7416-3FS07-0AB0CPU 416F-3 PN/DP fail-safe, 16 MB, MPI/DP, PROFINET and IF slot | Safety PLC CPU (F-CPU) | Phased out | On Request | On request | View |
| Siemens 6ES7421-1BL01-0AA0SM 421 digital input, 32 DI, 24 V DC | Digital input module | Discontinued | On Request | On request | View |
| Siemens 6ES7421-7BH01-0AB0SM 421 digital input, 16 DI, 24 V DC, interrupt and diagnostics | Digital input module | Discontinued | On Request | On request | View |
| Siemens 6ES7421-1EL00-0AA0SM 421 digital input, 32 DI, 120 V AC/DC | Digital input module | Discontinued | On Request | On request | View |
| Siemens 6ES7421-1FH20-0AA0SM 421 digital input, 16 DI, 120/230 V AC/DC | Digital input module | Discontinued | On Request | On request | View |
| Siemens 6ES7421-7DH00-0AB0SM 421 digital input, 16 DI, 24 to 60 V AC/DC, interrupt and diagnostics | Digital input module | Discontinued | On Request | On request | View |
| Siemens 6ES7422-1BH11-0AA0SM 422 digital output, 16 DO, 24 V DC, 2 A | Digital output module | Discontinued | On Request | On request | View |
| Siemens 6ES7422-7BL00-0AB0SM 422 digital output, 32 DO, 24 V DC, 0.5 A, diagnostics | Digital output module | Discontinued | On Request | On request | View |
| Siemens 6ES7422-1FH00-0AA0SM 422 digital output, 16 DO, 120/230 V AC, 2 A | Digital output module | Discontinued | On Request | On request | View |
| Siemens 6ES7422-1HH00-0AA0SM 422 relay output, 16 DO, 5 A | Digital output module | Discontinued | On Request | On request | View |
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