Siemens SIMATIC User Manual

Digital modules
3.8 Digital output module SM 321; DI 32 x AC 120 V; (6ES7321-1EL00-0AA0)
S7-300 Module data
74 Manual, 06/2017, A5E00105505-AJ
Terminal assignment
The figure below shows the channel addressing (input byte x up to input byte x +3).
Technical specifications of SM 321; DI 32 x AC 120 V
Technical specifications
Dimensions and weight
Dimensions W x H x D (mm)
40 x 125 x 117
Weight
ca. 300 g
Module-specific data
Supports isochronous mode
no
Number of inputs
32
Cable length
• unshielded
• shielded
max. 600 m
max. 1000 m
Voltages, currents, electrical potentials
Number of simultaneously controlled inputs
• horizontal mounting position
to 40 °C
to 60 °C
32
24
• vertical mounting position
to 40 °C
32
Electrical isolation
• between channels and the backplane bus
yes
• between channels
in groups of
yes
8
Maximum potential difference
• between M
internal
and inputs
120 VAC
• between inputs of different groups
250 VAC
Isolation test voltage
2500 VDC

Siemens SIMATIC Specifications

General

Product type designation	SIMATIC
CPU	Varies by model
Memory	Varies by model
Input/Output	Varies by model
Communication	Varies by model
Programming Language	STEP 7
Operating Temperature	0°C to 60°C (varies by model)
Protection Class	IP20
Category	Programmable Logic Controller (PLC)