Product details
Specifications
Recommand
Service & Policy

PRODUCT DETAILS SIEMENS

ARTICLE NUMBER

6ES7321-1FF01-0AA0

NEW ORIGINAL

PRODUCT IDENTITY

SIMATIC S7-300 Digital Input Module

Designed to bring isolated alternating-current field states into a compatible controller station, this module supports structured cabinet wiring, clear channel status indication and order-code-specific lifecycle replacement.

WARRANTY

One year

AVAILABILITY

In stock

TEL

+86 17359287459

sales9@apterpower.com

TECHNICAL PROFILE FIRMWARE · CONFIGURATION

DIGITAL INPUTS 8	SIGNAL TYPE AC	RATED INPUT 120/230 V AC	FREQUENCY 47–63 Hz
SIGNAL 1 79–264 V AC	INPUT CURRENT 6.5 / 11 mA	ISOLATION Groups of 2	CONNECTOR 1 × 20-pole

FIRMWARE & UPDATES

Use the approved S7-300 hardware configuration and preserve the installed project during service work.

Before replacement, compare the module revision with the latest Siemens data sheet and applicable hardware documentation.

Record the slot assignment and input addresses before power-down so recommissioning remains controlled.

CONFIGURATION & PROGRAMMING

Select the matching SM 321 order number in the STEP 7 hardware configuration.

Map the input channels to the required process-image address range and verify each field state in the control logic.

The module has channel status indication without diagnostic or hardware interrupts; use program-level plausibility checks where required.

BRAND & APPLICATIONS

BRAND CHARACTERISTICS	APPLICATION FIELDS
◆ Siemens order codes distinguish voltage, channel and connection variants for exact lifecycle replacement.	◆ Acquires AC-operated switch and auxiliary-contact states in machines and process plants.
◆ Electrically isolated channel groups support structured separation of industrial AC field signals.	◆ Supports retrofit and spare-part work in installed SIMATIC S7-300 control cabinets.
◆ The modular S7-300 architecture supports documented slot assignment and controlled service procedures.	◆ Fits process skids, utilities and infrastructure panels that use industrial AC input signals.
◆ Official data sheets define the electrical limits required for compatible retrofit verification.	◆ Retains established addressing and field wiring during order-code-specific maintenance replacement.

RECOMMENDED MODELS

Siemens

6ES7321-1BH02-0AA0	6ES7321-1BL00-0AA0	6ES7321-1FF01-0AA0	6ES7321-7BH01-0AB0
6ES7321-7TH00-0AB0	6ES7322-1BH01-0AA0	6ES7322-1BL00-0AA0	6ES7322-1BF01-0AA0
6ES7322-1HF01-0AA0	6ES7331-7KF02-0AB0	6ES7331-1KF02-0AB0	6ES7332-5HD01-0AB0
6ES7334-0CE01-0AA0	6ES7340-1CH02-0AE0	6ES7341-1AH02-0AE0	6ES7350-1AH03-0AE0
6ES7360-3AA01-0AA0	6ES7361-3CA01-0AA0	6ES7392-1AJ00-0AA0	6ES7392-1BJ00-0AA0

Weidmüller

UR20-FBC-PN-IRT-V2	UR20-FBC-PB-DP-V2	UR20-FBC-EIP	UR20-FBC-MOD-TCP
UR20-16DI-P	UR20-16DO-P	UR20-8DI-P-3W	UR20-8DO-P
UR20-4DI-P	UR20-4DO-P	UR20-4AI-UI-16	UR20-4AO-UI-16
UR20-4AI-RTD-DIAG	UR20-4AI-TC-DIAG	UR20-PF-I	UR20-PF-O
UR20-EBK	UR20-1COM-RS232-485-422	UR20-2CNT-100	UR20-4DI-4DO-P

QUOTE & SERVICE POLICY

01 · IDENTIFY
Send the complete article number and required quantity.

02 · VERIFY
Confirm the installed revision, voltage and connector.

03 · QUOTE
Request price, condition and available stock.

04 · DISPATCH
Confirm packing requirements and shipment details.

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Siemens S7-300 Datasheet Module

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