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Siemens 6ES7321-7RD00-0AB0

********** spare part ********* SIMATIC S7, digital input SM 321, isolated, 4 DI; 24 V DC, NAMUR/DIN 19234, for signals from the hazardous area, diagnostics-capable, PTB tested,

SiemensMFR # 6ES7321-7RD00-0AB0SKU # CEY-937FC77FABE7

Rated value (DC)24 V

Reverse polarity protectionYes

from backplane bus 5 V DC, max.80 mA

Type of output voltagevia the inputs

Power loss, typ.1.1 W

Number of digital inputs4

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About This Product

********** spare part ********* SIMATIC S7, digital input SM 321, isolated, 4 DI; 24 V DC, NAMUR/DIN 19234, for signals from the hazardous area, diagnostics-capable, PTB tested,

Siemens 6ES7321-7RD00-0AB0

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Specifications

Load voltage L+

Rated value (DC)24 V

Reverse polarity protectionYes

Input current

from load voltage L+ (without load), max.50 mA

from backplane bus 5 V DC, max.80 mA

Encoder supply

Type of output voltagevia the inputs

Power loss

Power loss, typ.1.1 W

Digital inputs

Number of digital inputs4

Number of NAMUR inputs4

Input voltage

Type of input voltageDC

Rated value (DC)8.2 V; from internal power circuit supply

Input current

on wire-break, max.0.1 mA

on short-circuit, max.8.5 mA

for NAMUR encoders

— for signal "0", min.0.35 mA

— for signal "0", max.1.2 mA

— for signal "1", min.2.1 mA

— for signal "1", max.7 mA

Input delay (for rated value of input voltage)

Input frequency (with a time delay of 0.1 ms), max.2 kHz

for NAMUR inputs

— ParameterizableYes; 0.1 / 0.5 / 3 / 15 / 20 ms (plus 0.25 ms preparation time)

Cable length

unshielded, max.200 m

Connectable encoders

NAMUR encoderYes; Two-wire connection

Interrupts/diagnostics/status information

Diagnostics functionYes

Diagnoses

Diagnostic information readableYes

Diagnostics indication LED

Group error SF (red)Yes

Status indicator digital input (green)Yes

Channel fault indicator F (red)Yes

Ex(i) characteristics

Module for Ex(i) protectionYes

maximum values for connecting terminals for gas group IIC

Uo (no-load voltage), max.10 V

Io (short-circuit current), max.14.1 mA

Po (power output), max.33.7 mW

Co (permissible external capacity), max.3 µF

Lo (permissible external inductivity), max.100 mH

Potential separation digital inputs

between the channelsYes; 60 V DC/30 V AC when used in the hazardous area; 400 V DC/250 V AC when used in NON-hazardous area

between the channels, in groups of1

between the channels and backplane busYes; 60 V DC/30 V AC when used in the hazardous area; 400 V DC/250 V AC when used in NON-hazardous area

Between the channels and load voltage L+Yes; 60 V DC/30 V AC when used in the hazardous area; 400 V DC/250 V AC when used in NON-hazardous area

Use in hazardous areas

ATEX markingATEX II 3 G (2) GD Ex nA [ib Gb] [ib IIIC Db] IIC T4 Gc

FM markingClass II, Division 2, Group A, B, C, D T4

Test number PTBEx-96.D.2094X

Ambient temperature during operation

max.60 °C

Connection method

required front connector20-pin

Dimensions

Width40 mm

Height125 mm

Depth120 mm

Weights

Weight, approx.230 g

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Siemens 6ES7321-7RD00-0AB0

About This Product

Siemens 6ES7321-7RD00-0AB0

Specifications

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