Siemens Simatic S7-300 - Digital Input Module SM 321; DI 16 X DC; With Hardware and Diagnostic Interrupts, Clocked; (6 ES7321-7 BH01-0 AB0)

Digital Modules
3-22
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
3.9 Digital input module SM 321; DI 16 x DC 24 V;
with Hardware and Diagnostic Interrupts, clocked;
(6ES7321-7BH01-0AB0)
Order number: “Standard module”
6ES7321-7BH01-0AB0
Order number: SIPLUS S7-300 module
6AG1321-7BH01-2AB0
Characteristics
The SM 321; DI 16 x 24 VDC; with hardware and diagnostic interrupts features the
following characteristics:
• 16 inputs, isolated in groups of 16
• 24 VDC rated input voltage
• Input characteristic curve according to IEC 61131, Type 2
• Suitable for switches and two / three / four-wire BEROs (proximity switches).
• 2 short-circuit-proof sensor supplies for 8 channels each
• External redundant power supply possible to supply sensors
• “Sensor supply (Vs)” status display
• Group error display
• Supports clocked operation
• Supports the “parameter changing during the RUN” function
• Programmable diagnostics
• Programmable diagnostic interrupt
• Programmable hardware interrupt
• Programmable input delays