6ES7321-1BL00-0AA0

Attribute Name	Value
Brand	Siemens
Model	6ES7321-1BL00-0AA0
Series	SIMATIC S7-300, SM321 Digital Input Module
Type	PLC Digital Input Module
I/O Spec	32DI, DC24V
Digital Input	32-ch DC24V Digital Input
Isolation	Group isolated, 8 channels per group
Input Delay	0.1~3ms adjustable
Connector	40-pole Front Connector
Power Supply	DC24V
Mounting	DIN rail, S7-300 backplane
Origin	Germany
Warranty	1 year
Condition	New Original
Net Weight	0.32kg
Gross Weight	0.50kg

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Product Overview

Siemens 6ES7321-1BL00-0AA0 is SM321 digital input expansion module for SIMATIC S7-300 PLC system. It offers 32 channels DC24V digital input, grouped isolation with 8 channels per group. Input delay adjustable from 0.1ms to 3ms, equipped with 40-pole front connector, powered by DC24V, mounted on S7-300 backplane DIN rail. Widely used to collect signals from push buttons, limit switches and proximity sensors in industrial field.

Attribute Name	Value
Brand	Siemens
Model	6ES7321-1BL00-0AA0
Series	SIMATIC S7-300, SM321 Digital Input Module
Type	PLC Digital Input Module
I/O Spec	32DI, DC24V
Digital Input	32-ch DC24V Digital Input
Isolation	Group isolated, 8 channels per group
Input Delay	0.1~3ms adjustable
Connector	40-pole Front Connector
Power Supply	DC24V
Mounting	DIN rail, S7-300 backplane
Origin	Germany
Warranty	1 year
Condition	New Original
Net Weight	0.32kg
Gross Weight	0.50kg