Siemens Simatic S7-300

Digital modules
3.15 Digital input module SM 321; DI 8 x 120/230 VAC (6ES7321-1FH01-0AA0)
S7-300 Automation System Module data
3-42 Manual, 08/2006, A5E00105505-04
Technical data
Input delay
• at "0" to "1" transitions
• at "1" to "0" transitions
max. 25 ms
max. 25 ms
Input characteristics to IEC 61131, type 1
Connection of 2-wire BEROs
• Permissible quiescent current
supported
max. 2 mA
Wiring signal transducers with 20-pin front connector
3.15 3.15 Digital input module SM 321; DI 8 x 120/230 VAC
(6ES7321-1FH01-0AA0)
Order number: "Standard module"
6ES7321-1FF01-0AA0
Order number: "SIPLUS S7-300 module"
6AG1 321-1FF01-2AA0
Properties
Properties of SM 321, DI 8 x AC 120/230 V:
● 8 inputs, electrically isolated in groups of 2
● rated input voltage 120/230 VAC
● suitable for switches and 2-/3-wire AC proximity switches