6ES7321-1FF01-0AA0 SM321, 8DI, AC120/230V

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Product Code: 6ES7321-1FF01-0AA0

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6ES7321-1FF01-0AA0

		SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, 8 DI, 120V/230V AC, 1 X 20 PIN
Supply voltage
Load voltage L1
● Rated value (AC)		230 V; 120/230 V AC
Input current
from backplane bus 5 V DC, max.		29 mA
Power loss
Power loss, typ.		4.9 W
Digital inputs
Number of digital inputs		8
Input characteristic curve in accordance with IEC 61131, type 1		Yes
Number of simultaneously controllable inputs
horizontal installation
— up to 60 °C, max.		8
vertical installation
— up to 40 °C, max.		8
Input voltage
● Type of input voltage		AC
● Rated value, AC		230 V; 120/230 V AC
● for signal "0"		0 to 40 V
● for signal "1"		79 to 264 V
● Frequency range		47 ... 63 Hz
Input current
● for signal "1", typ.		6.5 mA; (120 V); 11 mA (230 V)
Input delay (for rated value of input voltage)
for standard inputs
— parameterizable		No
— at "0" to "1", max.		25 ms
Cable length
● Cable length, shielded, max.		1 000 m
● Cable length unshielded, max.		600 m
Encoder
Connectable encoders
● 2-wire sensor		Yes
— permissible quiescent current (2-wire sensor), max.		2 mA
Isochronous mode
Isochronous mode (application synchronized up to terminal)		No
Interrupts/diagnostics/status information
Alarms
● Alarms		No
● Diagnostic alarm		No
● Hardware interrupt		No
Diagnostic messages
● Diagnostic functions		No
Diagnostics indication LED
● Group error SF (red)		No
● Status indicator digital input (green)		Yes
Galvanic isolation
Galvanic isolation digital inputs
● between the channels		No
● between the channels, in groups of		2
● between the channels and the backplane bus		Yes; Optocoupler
Isolation
Isolation tested with		4000 VDC
Connection method
required front connector		20-pin
Dimensions
Width		40 mm
Height		125 mm
Depth		120 mm
Weights
Weight, approx.		240 g
last modified:		21.08.2014