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Article number		6ES7321-7RD00-0AB0
		SM321, 4DI, DC24V, HAZARDOUS AREAS
Supply voltage
Load voltage L+
в—Џ Rated value (DC)		24 V
в—Џ Reverse polarity protection		Yes
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 voltage		via the inputs
Power loss
Power loss, typ.		1.1 W
Digital inputs
Number of NAMUR inputs		4
Input voltage
в—Џ Rated value (DC)		8.2 V; from internal power circuit supply
Input current
в—Џ on wire-break, max.		0.1 mA
в—Џ on short-circuit, max.		8.5 mA
for NAMUR encoders
вЂ” for signal "0"		0.35 to 1.2 mA
вЂ” for signal "1"		2.1 to 7 mA
Input delay (for rated value of input voltage)
в—Џ Input frequency (with a time delay of 0.1 ms), max.		2 kHz
for NAMUR inputs
вЂ” Parameterizable		Yes; 0.1 / 0.5 / 3 / 15 / 20 ms (plus 0.25 ms preparation time)
Cable length
в—Џ unshielded, max.		200 m
Encoder
Connectable encoders
в—Џ NAMUR encoder		Yes; Two-wire connection
Interrupts/diagnostics/status information
Diagnostic functions		Yes
Diagnostic messages
в—Џ Diagnostic information readable		Yes
Diagnostics indication LED
в—Џ Group error SF (red)		Yes
в—Џ Status indicator digital input (green)		Yes
в—Џ Channel fault indicator F (red)		Yes
Ex(i) characteristics
Module for Ex(i) protection		Yes
Maximum values of input circuits (per channel)
в—Џ Co (permissible external capacity), max.		3 µF
в—Џ Io (short-circuit current), max.		14.1 mA
в—Џ Lo (permissible external inductivity), max.		100 mH
в—Џ Po (power of load), max.		33.7 mW
в—Џ Uo (output no-load voltage), max.		10 V
Potential separation
Potential separation digital inputs
в—Џ Potential separation digital inputs		Yes
в—Џ between the channels, in groups of		1
Standards, approvals, certificates
Use in hazardous areas
в—Џ Type of protection acc. to EN 50020 (CENELEC)		[EEx ib] IIC
в—Џ Type of protection acc. to FM		Class II, Division 2, Group A, B, C, D T4
в—Џ Test number PTB		Ex-96.D.2094X
Ambient conditions
Ambient temperature during operation
в—Џ max.		60 °C
Connection method
required front connector		20-pin
Weights
Weight, approx.		230 g

Article number	6ES7322-5SD00-0AB0	6ES7322-5RD00-0AB0
	SM322, 4DO, 15V DC,10MA, HAZARDOUS AREAS	SM322, 4DO, 15V DC,20MA, HAZARDOUS AREAS
Supply voltage
Load voltage L+
в—Џ Rated value (DC)	24 V	24 V
в—Џ Reverse polarity protection	Yes	Yes
Input current
from load voltage L+ (without load), max.	160 mA	160 mA
from backplane bus 5 V DC, max.	85 mA	85 mA
Power loss
Power loss, typ.	3 W	3 W
Digital outputs
Number of digital outputs	4	4
Short-circuit protection	Yes; Electronic	Yes; Electronic
в—Џ Response threshold, typ.	Output current with short-circuit protection, min. 10 mA + 10 %	Output current with short-circuit protection, min. 20.5 mA + 10 %
Load resistance range
в—Џ upper limit	390 в„¦; Two-wire connection	200 в„¦; Two-wire connection
Output voltage
в—Џ Rated value (DC)	24 V	15 V
Output current
в—Џ for signal "1" permissible range for 0 to 60 °C, max.	10 mA; ±10 %	20 mA; ±10 %
Switching frequency
в—Џ with resistive load, max.	100 Hz	100 Hz
Cable length
в—Џ unshielded, max.	200 m	200 m
Interrupts/diagnostics/status information
Diagnostic functions	Yes	Yes
Diagnostic messages
в—Џ Diagnostic information readable	Yes	Yes
в—Џ Short-circuit	Yes	Yes
Diagnostics indication LED
в—Џ Group error SF (red)	Yes	Yes
в—Џ Status indicator digital output (green)	Yes	Yes
в—Џ Channel fault indicator F (red)	Yes	Yes
Ex(i) characteristics
Module for Ex(i) protection	Yes	Yes
Maximum values of output circuits (per channel)
в—Џ Co (permissible external capacity), max.	90 nF	500 nF
в—Џ Io (short-circuit current), max.	70 mA	85 mA
в—Џ Lo (permissible external inductivity), max.	6.7 mH	5 mH
в—Џ Po (power of load), max.	440 mW	335 mW
в—Џ Uo (output no-load voltage), max.	25.2 V	15.75 V
Potential separation
Potential separation digital outputs
в—Џ Potential separation digital outputs	Yes	Yes
в—Џ between the channels, in groups of	1	1
Standards, approvals, certificates
Use in hazardous areas
в—Џ Type of protection acc. to EN 50020 (CENELEC)	[EEx ib] IIC	[EEx ib] IIC
в—Џ Type of protection acc. to FM	Class I, Division 2, Group A, B, C, D T4	AIS CL.1, DIV 1, GP A, B, C, D; CL.I, DIV 2, GP A, B, C, D T4
в—Џ Test number PTB	Ex-96.D.2093X	Ex-96.D.2102X
Ambient conditions
Ambient temperature during operation
в—Џ max.	60 °C	60 °C
Connection method
required front connector	20-pin	20-pin
Weights
Weight, approx.	230 g	230 g

Article number	6ES7331-7RD00-0AB0	6ES7331-7SF00-0AB0
	SIMATIC S7, SM 331 ANALOG INPUT	SIMATIC S7, SM 331 ANALOG INPUT
Supply voltage
Load voltage L+
в—Џ Rated value (DC)	24 V	24 V
в—Џ Reverse polarity protection	Yes
Input current
from load voltage L+ (without load), max.	250 mA
from backplane bus 5 V DC, max.	60 mA	120 mA
Output voltage
Power supply to the transmitters
в—Џ Rated value (DC)	13 V; at 22 mA
в—Џ No-load voltage (DC)	25.2 V
Power loss
Power loss, typ.	3 W	0.6 W
Analog inputs
Number of analog inputs	4	8; 8x thermocouples; 4x RTD thermoresistors
permissible input current for current input (destruction limit), max.	40 mA
Input ranges
в—Џ Voltage	No	Yes
в—Џ Current	Yes	No
в—Џ Thermocouple	No	Yes
в—Џ Resistance thermometer	No	Yes
в—Џ Resistance	No	Yes
Input ranges (rated values), currents
в—Џ 0 to 20 mA	Yes
в—Џ Input resistance (0 to 20 mA)	50 в„¦
в—Џ 4 mA to 20 mA	Yes
в—Џ Input resistance (4 mA to 20 mA)	50 в„¦
Input ranges (rated values), thermocouples
в—Џ Type B		Yes
в—Џ Input resistance (Type B)		10 Mв„¦
в—Џ Type E		Yes
в—Џ Input resistance (Type E)		10 Mв„¦
в—Џ Type J		Yes
в—Џ Input resistance (type J)		10 Mв„¦
в—Џ Type K		Yes
в—Џ Input resistance (Type K)		10 Mв„¦
в—Џ Type L		Yes
в—Џ Input resistance (Type L)		10 Mв„¦
в—Џ Type N		Yes
в—Џ Input resistance (Type N)		10 Mв„¦
в—Џ Type R		Yes
в—Џ Input resistance (Type R)		10 Mв„¦
в—Џ Type S		Yes
в—Џ Input resistance (Type S)		10 Mв„¦
в—Џ Type T		Yes
в—Џ Input resistance (Type T)		10 Mв„¦
в—Џ Type U		Yes
в—Џ Input resistance (Type U)		10 Mв„¦
Input ranges (rated values), resistance thermometer
в—Џ Ni 100		Yes
в—Џ Input resistance (Ni 100)		10 Mв„¦
в—Џ Pt 100		Yes
в—Џ Input resistance (Pt 100)		10 Mв„¦
в—Џ Pt 200		Yes
в—Џ Input resistance (Pt 200)		10 Mв„¦
Cable length
в—Џ shielded, max.	200 m	200 m; TC: 50 m
Analog value generation for the inputs
Measurement principle	Sigma Delta	Sigma Delta
Integration and conversion time/resolution per channel
в—Џ Resolution with overrange (bit including sign), max.	16 bit; 10 bit to 15 bit + sign	16 bit; 10 bit to 15 bit + sign
в—Џ Integration time, parameterizable	Yes; 2.5 to 100 ms	Yes; 2.5 to 100 ms
в—Џ Interference voltage suppression for interference frequency f1 in Hz	10 to 400 Hz	10 to 400 Hz
Encoder
Connection of signal encoders
в—Џ for current measurement as 2-wire transducer	Yes	Yes
в—Џ for current measurement as 4-wire transducer	Yes	Yes
Errors/accuracies
Temperature error (relative to input range), (+/-)		0.001 %/K; Temperature error: 0.001 to 0.002 %/K
Operational error limit in overall temperature range
в—Џ Current, relative to input range, (+/-)	0.45 %
в—Џ Resistance thermometer, relative to input range, (+/-)		0.04 %; 0.09 to 0.04%
Basic error limit (operational limit at 25 °C)
в—Џ Current, relative to input range, (+/-)	0.1 %
в—Џ Resistance thermometer, relative to input range, (+/-)		0.008 %; 0.018 ... 0.008%
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency
в—Џ Series mode interference (peak value of interference < rated value of input range), min.	60 dB	60 dB
в—Џ Common mode interference, min.	130 dB	130 dB
Interrupts/diagnostics/status information
Diagnostic functions	Yes	Yes
Diagnostic messages
в—Џ Diagnostic information readable	Yes	Yes
в—Џ Overrange	Yes	Yes
в—Џ Wire-break in signal transmitter cable	Yes	Yes
в—Џ Short-circuit of the signal encoder cable	Yes	Yes
Diagnostics indication LED
в—Џ Group error SF (red)	Yes	Yes
в—Џ Channel fault indicator F (red)	Yes	Yes
Ex(i) characteristics
Module for Ex(i) protection	Yes	Yes
Maximum values of input circuits (per channel)
в—Џ Co (permissible external capacity), max.	90 nF	43 µF
в—Џ Io (short-circuit current), max.	68.5 mA	28.8 mA
в—Џ Lo (permissible external inductivity), max.	7.5 mH	40 mH
в—Џ Po (power of load), max.	431 mW	41.4 mW
в—Џ Ri, max.	50 в„¦
в—Џ Uo (output no-load voltage), max.	25.2 V	5.9 V
Potential separation
Potential separation analog inputs
в—Џ Potential separation analog inputs	Yes	Yes
Permissible potential difference
between the inputs (UCM)	60 V DC/30 V AC when used in the hazardous area; 400 V DC/250 V AC when used in NON-hazardous area	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 inputs and MANA (UCM)	60 V DC/30 V AC when used in the hazardous area; 400 V DC/250 V AC when used in NON-hazardous area	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
в—Џ Type of protection acc. to EN 50020 (CENELEC)	[EEx ib] IIC	[EEx ib] IIC
в—Џ Type of protection acc. to FM	Class I, Division 2, Group A, B, C, D T4	Class I, Division 2, Group A, B, C, D T4
в—Џ Test number PTB	Ex-96.D.2092X	Ex-96.D.2108X
Ambient conditions
Ambient temperature during operation
в—Џ max.	60 °C	60 °C
Connection method
required front connector	20-pin	20-pin
Weights
Weight, approx.	290 g	210 g

Article number		6ES7332-5RD00-0AB0
		SIMATIC S7,SM 332 ANALOG OUTPUT
Supply voltage
Load voltage L+
в—Џ Rated value (DC)		24 V
в—Џ Reverse polarity protection		Yes
Input current
from load voltage L+ (without load), max.		200 mA
from backplane bus 5 V DC, max.		80 mA
Power loss
Power loss, typ.		4 W
Analog outputs
Number of analog outputs		4
Voltage output, short-circuit protection		Yes
Voltage output, short-circuit current, max.		70 mA
Current output, no-load voltage, max.		14 V
Output ranges, current
в—Џ 0 to 20 mA		Yes
в—Џ 4 mA to 20 mA		Yes
Connection of actuators
в—Џ for current output two-wire connection		Yes
Load impedance (in rated range of output)
в—Џ with current outputs, max.		500 в„¦
Cable length
в—Џ shielded, max.		200 m
Analog value generation for the outputs
Integration and conversion time/resolution per channel
в—Џ Resolution with overrange (bit including sign), max.		15 bit
в—Џ Basic conversion time (ms)		2.5 ms
Errors/accuracies
Operational error limit in overall temperature range
в—Џ Current, relative to output range, (+/-)		0.55 %
Basic error limit (operational limit at 25 °C)
в—Џ Current, relative to output range, (+/-)		0.2 %
Interrupts/diagnostics/status information
Diagnostic functions		Yes
Diagnostic messages
в—Џ Diagnostic information readable		Yes
в—Џ Overrange		Yes
в—Џ Wire-break in actuator cable		Yes
Diagnostics indication LED
в—Џ Group error SF (red)		Yes
в—Џ Channel fault indicator F (red)		Yes
Ex(i) characteristics
Module for Ex(i) protection		Yes
Maximum values of output circuits (per channel)
в—Џ Co (permissible external capacity), max.		850 nF
в—Џ Io (short-circuit current), max.		70 mA
в—Џ Lo (permissible external inductivity), max.		6.6 mH
в—Џ Po (power of load), max.		440 mW
в—Џ Uo (output no-load voltage), max.		14 V
Potential separation
Potential separation analog outputs
в—Џ Potential separation analog outputs		Yes
Permissible potential difference
between the outputs (UCM)		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 outputs and MANA (UCM)		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
Use in hazardous areas
в—Џ Type of protection acc. to EN 50020 (CENELEC)		[EEx ib] IIC
в—Џ Type of protection acc. to FM		Class I, Division 2, Group A, B, C, D T4
в—Џ Test number PTB		Ex-96.D.2026X
Ambient conditions
Ambient temperature during operation
в—Џ max.		60 °C
Connection method
required front connector		20-pin
Weights
Weight, approx.		280 g