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Siemens 6AG1321-7BH01-4AS0 — PLC I/O & Expansion Modules

Siemens 6AG1321-7BH01-4AS0 DI Module, 16DI 24V DC, -40-70°C

MPN6AG1321-7BH01-4AS0

Siemens S7-1500 16DI digital input module, 24 V DC, parameterizable input delay, wire-break detection, -40 to 70 °C.

Siemens 6AG1321-7BH01-4AS0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6AG1321-7BH01-4AS0 — I/O
ParameterValue
Digital inputs16
6AG1321-7BH01-4AS0 — Electrical
ParameterValue
Rated value (DC)24 V
Permissible range, lower limit (DC)20.4 V
Permissible range, upper limit (DC)28.8 V
For signal "1"13 to 30V
For signal "0"-30 ... +11.2 V
Current for signal "1" (typ.)7 mA
Max.70 °C
Power loss (typ.)4 W
Current consumption from backplane bus (5 V DC), max.130 mA
Current consumption from load voltage L+ (no load), max.90 mA
Short-circuit protectionYes; Electronic
Reverse polarity protectionYes
Isolation test voltage500 V DC
Isolation: between channelsNo
Isolation: channels to backplane busYes; Optocoupler
Max. cable length, shielded1 000 m
Max. cable length, unshielded600 m
6AG1321-7BH01-4AS0 — Performance
ParameterValue
ParameterizableYes; 0.1 / 0.5 / 3 / 15 / 20 ms
Diagnostic alarmYes; Parameterizable
Diagnostics functionYes; Parameterizable
Group fault indicator (SF, red LED)Yes
6AG1321-7BH01-4AS0 — Environmental
ParameterValue
Min.-40 °C
6AG1321-7BH01-4AS0 — Mechanical
ParameterValue
Height125 mm
Width40 mm
Depth120 mm
Weight (approx.)200 g
6AG1321-7BH01-4AS0 — Approvals
ParameterValue
CE markYes

Product details

Integrator's field note

The 6AG1321-7BH01-4AS0: 16 digital inputs, 24 V DC, with parameterizable input delay (0.1, 0.5, 3, 15, or 20 ms) lets you filter contact bounce or fast sensor edges. Wire-break detection triggers below 1 mA. Diagnostic and hardware interrupts are parameterizable — useful for rapid fault localisation. Requires a 20-pin front connector. Temperature range -40 to 70 °C covers unheated cabinets and outdoor enclosures.

Frequently asked questions

What temperature range does this module support?

It operates from -40 °C to 70 °C, covering most industrial and outdoor conditions.

What approvals does this module carry?

UL File E239877, CE, KC, EAC, and RCM. Isolation tested at 500 V DC.

Can the input delay be configured?

Yes, it is parameterizable to 0.1, 0.5, 3, 15, or 20 ms.

Does it support wire-break detection?

Yes, it detects wire-break when current falls below 1 mA, and can trigger a diagnostic alarm.

MPN
6AG1321-7BH01-4AS0