6ES7221-1EF22-0XA0 SIMATIC S7-200, EM 221 DIGITAL

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Product Information

SIMATIC S7-200, EM 221 DIGITAL INPUT MOD., OPTICALLY ISOLATED 8DI, 120/230V AC,
Input current
from backplane bus 5 V DC, max.	30 mA
Power losses
Power loss, typ.	3 W
Digital inputs
Number/binary inputs	8
Input characteristic curve acc. to IEC 1131, Type 1	Yes
Input voltage
Type of input voltage	AC
Rated value, AC	230 V; 220/230 V AC (47 to 63 Hz)
for signal "0"	up to 20 V AC
for signal "1"	79 V AC or more
Input current
for signal "1", typ.	2.5 mA
Input delay (for rated value of input voltage)
for standard inputs
at "0" to "1", max.	15 ms
Cable length
Cable length, shielded, max.	500 m
Cable length unshielded, max.	300 m
Encoder
Connectable encoders
2-wire BEROS	Yes
permissible quiescent current (2-wire BEROS), max.	1 mA
Galvanic isolation
Galvanic isolation digital inputs
Galvanic isolation digital inputs	Yes; Optocoupler
between the channels, in groups of	1; (8 groups)
Connection method
Plug-in I/O terminals	Yes
Dimensions
Width	71.2 mm
Height	80 mm
Depth	62 mm
Weight
Weight, approx.	160 g

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