6ES7221-1BH32-0XB0 DIGITAL INPUT SM 1221, 16DI, 24V DC

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Product Code: 6ES7221-1BH32-0XB0

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6ES7221-1BH32-0XB0

		SIMATIC S7-1200, DIGITAL INPUT SM 1221, 16 DI, 24VDC, SINK/SOURCE INPUT
Supply voltage
24 V DC		Yes
permissible range, lower limit (DC)		20.4 V
permissible range, upper limit (DC)		28.8 V
Input current
from backplane bus 5 V DC, max.		130 mA
Digital inputs
● from load voltage L+ (without load), max.		4 mA; per channel
Output voltage
Power supply to the transmitters
● present		Yes
Power losses
Power loss, typ.		2.5 W
Digital inputs
Number of digital inputs		16
● In groups of		4
Input characteristic curve in accordance with IEC 61131, type 1		Yes
Number of simultaneously controllable inputs
all mounting positions
— up to 40 °C, max.		16
horizontal installation
— up to 40 °C, max.		16
— up to 50 °C, max.		16
vertical installation
— up to 40 °C, max.		16
Input voltage
● Type of input voltage		DC
● Rated value (DC)		24 V
● for signal "0"		5 V DC at 1 mA
● for signal "1"		15 VDC at 2.5 mA
Input current
● for signal "0", max. (permissible quiescent current)		1 mA
● for signal "1", min.		2.5 mA
● for signal "1", typ.		4 mA; Typical
Input delay (for rated value of input voltage)
for standard inputs
— Parameterizable		Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four
for interrupt inputs
— Parameterizable		Yes
Cable length
● Cable length, shielded, max.		500 m
● Cable length unshielded, max.		300 m
Digital outputs
Number of digital outputs		0
short-circuit protection		No
Interrupts/diagnostics/status information
Alarms
● Alarms		Yes
● Diagnostic alarm		Yes
Diagnostic messages
● Diagnostic functions		Yes
● Monitoring the supply voltage		Yes
Diagnostics indication LED
● for status of the inputs		Yes
● for maintenance		Yes
● Status indicator digital input (green)		Yes
Galvanic isolation
Galvanic isolation digital inputs
● between the channels, in groups of		4
Degree and class of protection
Degree of protection to EN 60529
● IP20		Yes
Standards, approvals, certificates
CE mark		Yes
CSA approval		Yes
UL approval		Yes
cULus		Yes
RCM (formerly C-TICK)		Yes
FM approval		Yes
Marine approval
● Marine approval		Yes
Climatic and mechanical conditions for storage and transport
Climatic conditions for storage and transport
Free fall
— Drop height, max. (in packaging)		0.3 m; five times, in dispatch package
Temperature
— Permissible temperature range		-40 °C to +70 °C
Air pressure acc. to IEC 60068-2-13
— Permissible air pressure		1080 to 660 hPa
Relative humidity
— Permissible range (without condensation) at 25 °C		95 %
Mechanical and climatic conditions during operation
Climatic conditions in operation
Temperature
— Min.		-20 °C
— max.		60 °C
— Permissible temperature change		5°C to 55°C, 3°C / minute
Connection method
required front connector		Yes
Mechanics/material
Type of housing (front)
● plastic		Yes
Dimensions
Width		45 mm
Height		100 mm
Depth		75 mm
Weights
Weight, approx.		210 g
last modified:		13.10.2014