6ES7321-7EH00-0AB0

Product category

Digital modules

Manufacturer

SIEMENS

Product series

S7-300

General information
Product function
Isochronous mode	No
Supply voltage
Load voltage L+
Rated value (DC)	24 V
permissible range, lower limit (DC)	24 V
permissible range, upper limit (DC)	125 V
Reverse polarity protection	Yes
Input current
from backplane bus 5 V DC, max.	90 mA
Power loss
Power loss, typ.	2 W; V_in = 24 V DC
Digital inputs
Number of digital inputs	16
Input characteristic curve in accordance with IEC 61131, type 1	Yes
Number of simultaneously controllable inputs
horizontal installation
up to 60 °C, max.	16; V_in = 100 V DC
vertical installation
up to 40 °C, max.	16; V_in = 100 V DC
Input voltage
Rated value (DC)	24 V; 24 V DC to 125 V DC
for signal "0"	-146 to 5V
for signal "1"	15 to 146V
Input current
for signal "1", typ.	3.5 mA
Input delay (for rated value of input voltage)
for standard inputs
Parameterizable	Yes; 0.1 / 0.5 / 3 / 15 / 20 ms
Cable length
shielded, max.	1 000 m
unshielded, max.	600 m
Encoder
Connectable encoders
2-wire sensor	Yes
permissible quiescent current (2-wire sensor), max.	1 mA
Interrupts/diagnostics/status information
Diagnostics function	Yes; Parameterizable
Alarms
Diagnostic alarm	Yes; Parameterizable
Hardware interrupt	Yes; Parameterizable
Diagnoses
Wire break	Yes; I < 1 mA
Diagnostics indication LED
Group error SF (red)	Yes
Status indicator digital input (green)	Yes
Potential separation
Potential separation digital inputs
between the channels	No
between the channels, in groups of	16
between the channels and backplane bus	Yes; Optocoupler
Isolation
Isolation tested with	3 500 V DC
Ambient conditions
Ambient temperature during operation
min.	0 °C
max.	60 °C
Connection method
required front connector	1x 40-pin
Dimensions
Width	40 mm
Height	125 mm
Depth	120 mm
Weights
Weight, approx.	200 g
Approvals / Certificates