6ES7421-7DH00-0AB0 SIMATIC S7-400, SM 421

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Product Code: 6ES7421-7DH00-0AB0

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Artikelnummer

6ES7421-7DH00-0AB0

		SIMATIC S7-400, SM 421 DIGITAL INPUT MODULE, OPTIC. ISOLATED, 16 DI, 24 - 60V UC, ALARM, DIAGNOSTICS
Input current
from backplane bus 5 V DC, max.		150 mA
Power losses
Power loss, max.		8 W; 3.5 W (24 V DC); 6.5 W (48 V DC); 8.0 W (60 V DC)
Digital inputs
Number of digital inputs		16
Number of simultaneously controllable inputs
all mounting positions
— up to 40 °C, max.		16
— up to 60 °C, max.		16
Input voltage
● Type of input voltage		AC/DC
● Rated value, UC		24 V; 24 to 60 V UC
● for signal "0"		-6 to +6 V DC/ 0 to 5 V AC
● for signal "1"		15 to 72 V DC; -15 to -72 V DC; 15 to 60 V AC
● Frequency range		47 to 63 Hz AC / DC
Input current
● for signal "1", typ.		4 mA; 4 to 10 mA
Input delay (for rated value of input voltage)
for standard inputs
— Parameterizable		Yes
— Rated value		0.5 ms; 0.5 / 3 / 10 / 20 ms
Cable length
● Cable length, shielded, max.		1 000 m
● Cable length unshielded, max.		600 m; 600 m: 3, 10, 20 ms; 100 m: 0,5 ms
Encoder
Connectable encoders
● 2-wire sensor		Yes
— Permissible quiescent current (2-wire sensor), max.		0.5 mA; 0.5 to 2 mA
Interrupts/diagnostics/status information
Alarms
● Diagnostic alarm		Yes; Parameterizable
● Hardware interrupt		Yes; Parameterizable
Diagnostic messages
● Diagnostics		Yes; internal/ external fault
Galvanic isolation
Galvanic isolation digital inputs
● between the channels, in groups of		1
● between the channels and the backplane bus		Yes
Isolation
Isolation checked with		1500 V AC
Dimensions
Width		25 mm
Height		290 mm
Depth		210 mm
Weights
Weight, approx.		600 g
last modified:		25.09.2014