6AG1321-7RD00-4AB0

Siemens 6AG1321-7RD00-4AB0

SIPLUS S7-300 SM 321 4DI NAMUR based on 6ES7321-7RD00-0AB0 with conformal coating, 0…+60 °C, digital input isolated 4 DI; 24 V DC, NAMUR/DIN 19234, for signals from the hazardous area, diagnostics-capable, PTB tested

Product category
Digital modules
Manufacturer
SIEMENS
Product series
S7-300
General information
based on6ES7321-7RD00-0AB0
Supply voltage
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
Encoder
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
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
Standards, approvals, certificates
CE markYes
UL approvalYes; File E239877
RCM (formerly C-TICK)Yes
KC approvalYes
EAC (formerly Gost-R)Yes
Use in hazardous areas
ATEX markingATEX II 3 G (2) GD Ex nA [ib Gb] [ib IIIC Db] IIC T4 Gc
ATEX certificate10 ATEX 0062X
Ambient conditions
Ambient temperature during operation
min.0 °C; = Tmin
max.60 °C; = Tmax
Ambient temperature during storage/transportation
min.-40 °C
max.70 °C
Altitude during operation relating to sea level
Installation altitude above sea level, max.5 000 m
Ambient air temperature-barometric pressure-altitudeTmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax -20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m)
Relative humidity
With condensation, tested in accordance with IEC 60068-2-38, max.100 %; RH incl. condensation/frost (no commissioning under condensation conditions)
Resistance
Use in stationary industrial systems
to biologically active substances according to EN 60721-3-3Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna); Class 3B3 on request
to chemically active substances according to EN 60721-3-3Yes; Class 3C4 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
to mechanically active substances according to EN 60721-3-3Yes; Class 3S4 incl. sand, dust, *
Use on ships/at sea
to biologically active substances according to EN 60721-3-6Yes; Class 6B2 mold and fungal spores (excluding fauna); Class 6B3 on request
to chemically active substances according to EN 60721-3-6Yes; Class 6C3 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); *
to mechanically active substances according to EN 60721-3-6Yes; Class 6S3 incl. sand, dust; *
Usage in industrial process technology
Against chemically active substances acc. to EN 60654-4Yes; Class 3 (excluding trichlorethylene)
Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)
Remark
Note regarding classification of environmental conditions acc. to EN 60721, EN 60654-4 and ANSI/ISA-71.04* The supplied plug covers must remain in place over the unused interfaces during operation!
Connection method
required front connector20-pin
Dimensions
Width40 mm
Height125 mm
Depth120 mm
Weights
Weight, approx.230 g
Approvals / Certificates