6ES7321-7TH00-0AB0 SM321, 16 DI, 24V DC, DIAGNOSTICS

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6ES7321-7TH00-0AB0

		SIMATIC S7/PCS7, SM 321 DIGITAL INPUT MODULE, 16 DI, 24V DC, 1 X 40 PIN, CAPABLE OF DIAGNOSTICS, FOR CONTACTS (CONNECTED/ UNCONNECTED), NAMUR SENSOR, 3/4-WIRE-BERO, WITH FLUTTER MONITORING, PULSE LENGTHENING, WIRE BREAK DETECTION, IM153-2 INTERFACE MOD. REQUIRED
Supply voltage
Load voltage L+
● Rated value (DC)		24 V
Input current
from load voltage L+ (without load), max.		100 mA
from backplane bus 5 V DC, max.		100 mA
from supply voltage L+, max.		4 A
Power losses
Power loss, typ.		11 W
Time stamping
Time stamping, supported		Yes
Accuracy		1 ms
Digital inputs
Number of digital inputs		16
Input characteristic curve in accordance with IEC 61131, type 1		No
Input characteristic curve in accordance with IEC 61131, type 2		Yes
Number of simultaneously controllable inputs
horizontal installation
— up to 60 °C, max.		16
vertical installation
— up to 40 °C, max.		16
Input voltage
● Type of input voltage		DC
● Rated value, DC		8.2 V; 8.2V/18V
Input current
● for signal "1", typ.		10 mA
Input delay (for rated value of input voltage)
for standard inputs
— at "0" to "1", min.		2.5 ms
— at "0" to "1", max.		3.5 ms
Cable length
● Cable length, shielded, max.		400 m; max. 200m with 8.2 V sensor, max. 400m with 18 V sensor
● Cable length unshielded, max.		Not permitted
Interrupts/diagnostics/status information
Alarms
● Alarms		Yes
● Diagnostic alarm		Yes
● Hardware interrupt		Yes
Diagnostic messages
● Diagnostic functions		Yes
● Diagnostics		Yes
Diagnostics indication LED
● Group error SF (red)		Yes
● Status indicator digital input (green)		Yes
Galvanic isolation
Galvanic isolation digital inputs
● between the channels		Yes
● between the channels, in groups of		8
● between the channels and the backplane bus		Yes
Permissible potential difference
between different circuits		75 VDC / 60 VAC
Isolation
Isolation checked with		600 V DC
Ambient conditions
Operating temperature
● Min.		0 °C
● max.		60 °C
Extended ambient conditions
● at cold restart, minimum		0 °C
Connection method
required front connector		1x 40-pin
Dimensions
Width		40 mm
Height		125 mm
Depth		120 mm
last modified:		08.09.2014