6ES7322-1BH01-0AA0

Siemens SM 322 digital output, 16 DO, 24 V DC, 0.5 A

Read from the product label

Maker: Siemens
Part no.: 6ES7322-1BH01-0AA0
Serial / rev.: as printed on your unit

Illustration of the unit type, not a photo of this part.

Delivery options

Siemens SIMATIC S7-300 SM 322 digital output module: 16 isolated outputs, 24 V DC, 0.5 A, one 20-pole front connector, 4 A per group, 8 A per module.

Manufacturer: Siemens
Manufacturer part no.: 6ES7322-1BH01-0AA0
Product family: SIMATIC S7-300 PLC Modules
Type: Digital output module
Lifecycle: Discontinued: product cancellation (Siemens SiePortal), spare part only
OEM successor: Not stated
Technical datasheet: Data sheet

Technical specifications

Manufacturer: Siemens
Manufacturer part no.: 6ES7322-1BH01-0AA0
Type: Digital output module
Application: Digital output module
Used with: SIMATIC S7-300 rack (S7-300 backplane bus)
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.: 80 mA
Input current / from backplane bus 5 V DC, max.: 80 mA
Power loss, typ.: 4.9 W
Number of digital outputs: 16
Digital outputs / Short-circuit protection: Yes; Electronic
Digital outputs / Response threshold, typ.: 1 A
Digital outputs / Limitation of inductive shutdown voltage to: L+ (-53 V)
Controlling a digital input: Yes
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+ (-0.8 V)
Output current / for signal "1" rated value: 0.5 A
Output current / for signal "1" permissible range for 0 to 40 °C, min.: 5 mA
Output current / for signal "1" permissible range for 0 to 40 °C, max.: 0.6 A
Output current / for signal "1" permissible range for 40 to 60 °C, min.: 5 mA
Output current / for signal "1" permissible range for 40 to 60 °C, max.: 0.6 A
Output current / for signal "1" minimum load current: 5 mA
Output current / for signal "0" residual current, max.: 0.5 mA
Output delay with resistive load / "0" to "1", max.: 100 µs
Output delay with resistive load / "1" to "0", max.: 500 µs
Parallel switching of two outputs / for uprating: No

Show all 59 specifications

Parallel switching of two outputs / for redundant control of a load: Yes
Switching frequency / with resistive load, max.: 100 Hz
Switching frequency / with inductive load, max.: 0.5 Hz
Switching frequency / with inductive load (acc. to IEC 60947-5-1, DC13), max.: 0.5 Hz
Switching frequency / on lamp load, max.: 10 Hz
Total current of the outputs (per group) / horizontal installation / up to 40 °C, max.: 4 A
Total current of the outputs (per group) / horizontal installation / up to 60 °C, max.: 3 A
Total current of the outputs (per group) / vertical installation / up to 40 °C, max.: 2 A
Cable length / shielded, max.: 1 000 m
Cable length / unshielded, max.: 600 m
Interrupts/diagnostics/status information / Alarms: No
Interrupts/diagnostics/status information / Diagnostics function: No
Alarms / Diagnostic alarm: No
Diagnoses / Wire break: No
Diagnoses / Short-circuit: No
Diagnoses / Fuse blown: No
Diagnoses / Missing load voltage: No
Diagnostics indication LED / Rated load voltage PWR (green): No
Diagnostics indication LED / Fuse OK FSG (green): No
Diagnostics indication LED / Status indicator digital output (green): Yes
Potential separation digital outputs / between the channels: Yes
Potential separation digital outputs / between the channels, in groups of: 8
Potential separation digital outputs / between the channels and backplane bus: Yes; Optocoupler
Isolation tested with: 500 V DC
required front connector: 20-pin
Width: 40 mm
Height: 125 mm
Depth: 120 mm
Weight, approx.: 190 g

Technical documents (1)

Siemens data sheet 6ES7322-1BH01-0AA0

Key features

16 digital outputs, 24 V DC, 0.5 A each
Total current 4 A per group, 8 A per module
Isolated
20-pin front connector
Discontinued by Siemens on 1 October 2025; spare part only

About the Siemens 6ES7322-1BH01-0AA0

The Siemens 6ES7322-1BH01-0AA0 is the 16-channel SM 322 digital output module, 24 V DC at 0.5 A per output, isolated, with a total current of 4 A per group and 8 A per module and a 20-pin front connector. Siemens's data sheet marks it as a spare part. Siemens names no direct successor for the order number; its route forward is migration to the S7-1500 with ET 200MP.

What is the 6ES7322-1BH01-0AA0 used for?

It switches relays, solenoid valves, contactor coils and lamps from an S7-300 CPU, in the CPU's rack or an ET 200M station.

Lifecycle and successor

Discontinued: product cancellation (Siemens SiePortal), spare part only.

Before you order

What to photograph or confirm so the right unit is quoted.

Check the order number on the module. The front connector with the field wiring normally moves across to the replacement.

Alternatives for 6ES7322-1BH01-0AA0

The manufacturer’s named successor and other parts in the same family. None is a drop-in replacement without checking wiring, I/O and configuration for your installation.

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