6ES7321-1FF81-0AA0 SIMATIC S7-300, DIGITAL INPUT

Product Code: 6ES7321-1FF81-0AA0

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6ES7321-1FF81-0AA0

		SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, FOR EXPANDED TEMPERATURE RANGE, 8 DI, 120V/230V AC, 20 PIN
Input current
from backplane bus 5 V DC, max.		29 mA
Power losses
Power loss, typ.		4.9 W
Digital inputs
Number of digital inputs		8
Number of simultaneously controllable inputs
all mounting positions
— up to 40 °C, max.		8
— up to 60 °C, max.		8
Input voltage
● 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; 6.5 mA (120 V); 11mA (230 V)
Input delay (for rated value of input voltage)
for standard inputs
— 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
Galvanic isolation
Galvanic isolation digital inputs
● between the channels, in groups of		2
● between the channels and the backplane bus		Yes; Optocoupler
Isolation
Isolation checked with		1500 V AC
Connection method
required front connector		20-pin
Dimensions
Width		40 mm
Height		125 mm
Depth		120 mm
Weights
Weight, approx.		240 g
last modified:		08.09.2014