SIMATIC S7-300C - Expansion Modules
Expansion modules with digital and analogue inputs and outputs
Required front connector:
-Stock no.
453-2573
for SM321/322/332
-Stock no.
453-2589
for SM331
Subassembly
SM 321
16 DE (DC)
SM 322
16 DA (DC)
SM 322
8 DA (rel.)
SN 322
16 DA (AC)
SN 322
8 DA (AC)
Inputs
16 digital
inputs
-
-
-
-
Input type
24V DC
-
-
-
-
Input voltage.
20.4 to 28.8V
-
-
-
-
Electrical isolation
Yes
-
-
-
-
in groups of
1 input
-
-
-
-
Outputs
-
16 digital
outputs
8 relay
outputs
16 relay
outputs
8 relay
outputs
Output type
-
24V DC
Relay
Output current
-
0.5A
4A per group
8A
5A
Output voltage.
-
L+ -0.8V
24 to 120Vdc,
48 to 230Vac
120Vdc,
230Vac
240Vdc,
230Vac
Electrical isolation
-
Yes
in groups of
-
2 outputs
1 output
8 outputs
Dimensions
40x125x120mm
Subassembly
SM 331 8 AE
SM 331 8AE
SM 331 8/4AE
Inputs
8 analogue inputs
8 analogue inputs,
4 with resistance measurement
Input type
Voltage, current,
resistance
Voltage, current
Voltage, current
thermocouples,
resistance
Input ranges
±50mV, ±500mV, ±1V,
±5V, 1 to 5V, ±10V,
0 to 10V, ±20mA,
0 to 20mA, 4 to 20mA,
0 to 600Ω, 0 to 6kΩ
-1 to 5V, -1 to 10V
±1V, ±10V,
±5V, -0 to 20mA,
±20mA, 4 to 20mA
max.±10V (8 areas),
±20mA (5 ranges),
thermocouples E, J, K and N,
resistance to 6000Ohm (4 ranges),
Ni100, Pt100
Resolution
13 bit
14 Bit
15 Bit
Electrical isolation
Yes
Yes, to rear panel bus
Yes
Outputs
-
-
-
Output type
-
-
-
Output ranges
-
-
-
Resolution
-
-
-
Electrical isolation
-
-
-
Dimensions
40x125x120mm
40x125x120mm
40x125x120mm
Subassembly
SM 332 4 AA
SM 334 4AE/2AA
SM 334 4/4AE/2AA
Inputs
-
4 analogue inputs
4 analogue inputs, 4 for
resistance measurement
Input type
-
Voltage, current
Voltage, resistance
Input ranges
-
10 to 10V, 0 to 20mA
0 to 10V, 0 to 10,000 Ohm, Pt100
Resolution
-
8 bit
12 b...
