SIMATIC S7-300 – SM 321 Digital Input Modules – Siemens Digital Modules

$ 137.58 – $ 996.60

SKU: N/A

Digital input modules can be used to connect the PLC to digital process signals. They are suitable for connecting standard switches and two-wire proximity switches (BERO).

Siemens Digital Input Modules SIMATIC S7-300 Product Specifications:

Article number 6ES7321-1BH02-0AA0 6ES7321-1BH50-0AA0 6ES7321-1BL00-0AA0 6ES7321-1BP00-0AA0 6ES7321-1BH10-0AA0
SM321, 16DI, DC24V SM321, 16DI, DC24V, Source Input SM321, 32DI, DC24V SM321, 64 DI, DC 24V, 3MS, P/M reading SM321,16DI,DC24V, 0.05ms Input Delay.
Supply voltage
Load voltage L+
● Rated value (DC) 24 V 24 V 24 V 24 V 24 V
● permissible range, lower limit (DC) 20.4 V 20.4 V 20.4 V 20.4 V
● permissible range, upper limit (DC) 28.8 V 28.8 V 28.8 V 28.8 V
● Reverse polarity protection Yes
Input current
from backplane bus 5 V DC, max. 10 mA 10 mA 15 mA 100 mA 110 mA
Power loss
Power loss, typ. 3.5 W 3.5 W 6.5 W 7 W 3.8 W
Digital inputs
Number of digital inputs 16 16 32 64 16
Input characteristic curve in accordance with IEC 61131, type 1 Yes Yes Yes Yes Yes
Number of simultaneously controllable inputs
all mounting positions
— up to 40 °C, max. 64
— up to 60 °C, max. 32
horizontal installation
— up to 40 °C, max. 16 16 32 64 16
— up to 60 °C, max. 16 16 16 32 16
vertical installation
— up to 40 °C, max. 16 16 32 32 16
Input voltage
● Type of input voltage DC DC DC DC DC
● Rated value (DC) 24 V 24 V 24 V 24 V 24 V
● for signal “0” -30 to +5 V -5 to +30V -30 to +5 V -30 to +5 V -30 to +5 V
● for signal “1” 13 to 30V -13 to -30V 13 to 30V 13 to 30V 13 to 30V
Input current
● for signal “1”, typ. 7 mA 7 mA 7 mA 4.2 mA 7 mA
Input delay (for rated value of input voltage)
for standard inputs
— parameterizable No No No No No
— Rated value 4.2 ms
— at “0” to “1”, min. 1.2 ms 1.2 ms 1.2 ms 1.2 ms 25 µs
— at “0” to “1”, max. 4.8 ms 4.8 ms 4.8 ms 4.8 ms 75 µs
— at “1” to “0”, min. 1.2 ms 1.2 ms 1.2 ms 1.2 ms 25 µs
— at “1” to “0”, max. 4.8 ms 4.8 ms 4.8 ms 4.8 ms 75 µs
Cable length
● shielded, max. 1 000 m 1 000 m 1 000 m 1 000 m 1 000 m
● unshielded, max. 600 m 600 m 600 m 600 m 600 m
Encoder
Connectable encoders
● 2-wire sensor Yes Yes Yes No Yes
— permissible quiescent current (2-wire sensor), max. 1.5 mA 1.5 mA 1.5 mA 1.5 mA
Interrupts/diagnostics/status information
Alarms No No No No No
Diagnostics function No No No No No
Alarms
● Diagnostic alarm No No No No No
● Hardware interrupt No No No No No
Diagnoses
● Diagnostic information readable No
● Wire-break No
Diagnostics indication LED
● Group error SF (red) No
● Status indicator digital input (green) Yes Yes Yes Yes Yes
● Encoder supply Vs (green) No
Potential separation
Potential separation digital inputs
● between the channels No No No No No
● between the channels, in groups of 16 16 16 16 16
● between the channels and backplane bus Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler
Isolation
Isolation tested with 500 V DC 500 V DC 500 V DC 500 V DC 500 V DC
connection method / header
required front connector 20-pin 20-pin 40-pin Cable: 6ES7392-4Bxx0-0AA0 terminal blocks: 6ES7392-1xN00-0AA0 20-pin
Dimensions
Width 40 mm 40 mm 40 mm 40 mm 40 mm
Height 125 mm 125 mm 125 mm 125 mm 125 mm
Depth 120 mm 120 mm 120 mm 112 mm 120 mm
Weights
Weight, approx. 200 g 200 g 260 g 230 g 200 g

 

Article number 6ES7321-7BH01-0AB0 6ES7321-1CH00-0AA0 6ES7321-1CH20-0AA0 6ES7321-1FH00-0AA0
SM321, 16DI, 24V DC SM321, 16 DI, AC/DC 24-48V, 1ch/common SM321, 16DI, DC48-125V SM321, 16 DI, 120/230V AC
Supply voltage
Load voltage L+
● Rated value (DC) 24 V 24 V 48 V
● permissible range, lower limit (DC) 20.4 V 24 V 48 V
● permissible range, upper limit (DC) 28.8 V 48 V 125 V
● Reverse polarity protection Yes
Load voltage L1
● Rated value (AC) 24 V 230 V; 120/230 V AC; all load voltages must have the same phase.
● permissible range, lower limit (AC) 24 V
● permissible range, upper limit (AC) 48 V
Input current
from load voltage L+ (without load), max. 90 mA
from backplane bus 5 V DC, max. 130 mA 100 mA 40 mA 29 mA
Encoder supply
Number of outputs 2
Type of output voltage L+ (-2.5 V)
Short-circuit protection Yes; Electronic
additional (redundant) feed Yes
Output current
● Rated value 120 mA
● permissible range, lower limit 0 mA
● permissible range, upper limit 150 mA
Power loss
Power loss, typ. 4 W 1.5 W; at 24 V; 2,8 W at 48 V 4.3 W 4.9 W
Digital inputs
Number of digital inputs 16 16 16 16
Input characteristic curve in accordance with IEC 61131, type 1 Yes Yes Yes
Input characteristic curve in accordance with IEC 61131, type 2 Yes
Number of simultaneously controllable inputs
horizontal installation
— up to 40 °C, max. 16 16 8 16
— up to 60 °C, max. 16 16 8; 6 to Ue 146 V 16
vertical installation
— up to 40 °C, max. 16 16 8 16
Input voltage
● Type of input voltage DC AC/DC DC AC
● Rated value (DC) 24 V 24 V; DC 24 or 48 V 48 V; 48 V DC to 125 V DC
● Rated value (AC) 24 V; 24 V AC or 48 V AC (0 … 63 Hz) 230 V; 120/230 V AC (47 … 63 Hz)
● for signal “0” -30 to +5 V -5V AC to +5V AC -146 V DC to +15 V DC 0 to 40V
● for signal “1” 13 to 30V 14V AC to 60V AC 30 V DC to 146 V DC 79 to 264V
Input current
● for signal “0”, min. -1 mA
● for signal “0”, max. (permissible quiescent current) 1 mA
● for signal “1”, typ. 7 mA 2.7 mA 3.5 mA 6.5 mA; (120 V, 60 Hz), 16 mA (230 V, 50 Hz)
Input delay (for rated value of input voltage)
for standard inputs
— parameterizable Yes; 0.1 / 0.5 / 3 / 15 / 20 ms No No No
— at “0” to “1”, min. 16 ms 0.1 ms 25 ms
— at “0” to “1”, max. 16 ms 3.5 ms 25 ms
— at “1” to “0”, min. 0.7 ms
— at “1” to “0”, max. 16 ms 3 ms 25 ms
Encoder connection
● Fixed current limitation for wire-break monitoring, min. 10 kΩ
● Fixed current limitation for wire-break monitoring, max. 18 kΩ
Cable length
● shielded, max. 1 000 m 1 000 m 1 000 m 1 000 m
● unshielded, max. 600 m 600 m 600 m 600 m
Encoder
Connectable encoders
● 2-wire sensor Yes Yes Yes Yes
— permissible quiescent current (2-wire sensor), max. 2 mA 1 mA 1 mA 2 mA
Interrupts/diagnostics/status information
Alarms Yes No No No
Diagnostics function Yes; Parameterizable No No No
Alarms
● Diagnostic alarm Yes; Parameterizable No No No
● Hardware interrupt Yes; Parameterizable No No No
Diagnoses
● Diagnostic information readable Yes
● Wire-break Yes; to I< 1 mA
Diagnostics indication LED
● Group error SF (red) Yes No No No
● Status indicator digital input (green) Yes Yes Yes Yes
● Encoder supply Vs (green) Yes
Potential separation
Potential separation digital inputs
● between the channels No Yes No No
● between the channels, in groups of 16 1 8 4
● between the channels and backplane bus Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler
Isolation
Isolation tested with 500 V DC 1 500 V AC 1 500 V DC 4 000 V DC
connection method / header
required front connector 20-pin 40-pin 20-pin 20-pin
Dimensions
Width 40 mm 40 mm 40 mm 40 mm
Height 125 mm 125 mm 125 mm 125 mm
Depth 120 mm 120 mm 120 mm 120 mm
Weights
Weight, approx. 200 g 260 g 200 g 240 g

 

Article number 6ES7321-1EL00-0AA0 6ES7321-1FF01-0AA0 6ES7321-1FF10-0AA0
SM321, 32DI, AC120V SM321, 8DI, AC120/230V SM321, 8 DI, AC/DC 120/230V, 1ch/common
Supply voltage
Load voltage L1
● Rated value (AC) 120 V 230 V; 120/230 V AC 230 V; 120/230 V AC; all load voltages must have the same phase.
Input current
from backplane bus 5 V DC, max. 16 mA 29 mA 100 mA
Power loss
Power loss, typ. 4 W 4.9 W 4.9 W
Digital inputs
Number of digital inputs 32 8 8
Input characteristic curve in accordance with IEC 61131, type 1 Yes Yes
Input characteristic curve in accordance with IEC 61131, type 2 Yes
Number of simultaneously controllable inputs
horizontal installation
— up to 40 °C, max. 32
— up to 60 °C, max. 24 8 8
vertical installation
— up to 40 °C, max. 32 8 8
Input voltage
● Type of input voltage AC AC AC
● Rated value (AC) 120 V; 47 … 63 Hz 230 V; 120/230 V AC (47 … 63 Hz) 120 V; 120/230 V AC (47 … 63 Hz)
● for signal “0” 0 to 20V 0 to 40V 0 to 40V
● for signal “1” 74 to 132V 79 to 264V 79 to 264V
Input current
● for signal “1”, typ. 21 mA 6.5 mA; (120 V); 11 mA (230 V) 7.5 mA; (120 V); 17.3 mA (230 V)
Input delay (for rated value of input voltage)
for standard inputs
— parameterizable No No No
— at “0” to “1”, max. 15 ms 25 ms 25 ms
— at “1” to “0”, max. 25 ms 25 ms 25 ms
Cable length
● shielded, max. 1 000 m 1 000 m 1 000 m
● unshielded, max. 600 m 600 m 600 m
Encoder
Connectable encoders
● 2-wire sensor Yes Yes Yes
— permissible quiescent current (2-wire sensor), max. 4 mA 2 mA 2 mA
Interrupts/diagnostics/status information
Alarms No No No
Diagnostics function No No No
Alarms
● Diagnostic alarm No No No
● Hardware interrupt No No No
Diagnostics indication LED
● Group error SF (red) No No No
● Status indicator digital input (green) Yes; per channel Yes Yes
Potential separation
Potential separation digital inputs
● between the channels No No Yes
● between the channels, in groups of 8 2 1
● between the channels and backplane bus Yes; Optocoupler Yes; Optocoupler Yes; Optocoupler
Isolation
Isolation tested with 2 500 V DC 4 000 V DC 1 500 V AC
connection method / header
required front connector 40-pin 20-pin 40-pin
Dimensions
Width 40 mm 40 mm 40 mm
Height 125 mm 125 mm 125 mm
Depth 120 mm 120 mm 120 mm
Weights
Weight, approx. 300 g 240 g 240 g
Weight N/A
Dimensions N/A

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