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SIMATIC S7-300 – SM 338 POS Input Modules – Siemens Input Modules

$ 325.18

SKU 6ES7338-4BC01-0AB0 Category

The SM 338 POS input module can be used as an interface between up to 3 absolute encoders and the S7-300 CPU. It makes position-encoder values available for subsequent processing in the control and provides the conditions for the control to respond directly to encoder values in systems under motion.

Siemens POS Input Modules SIMATIC S7-300 Product Specifications:

Article number 6ES7338-4BC01-0AB0
SM 338, f. 3 SSI encoders
Supply voltage
Load voltage L+
● Rated value (DC) 24 V
● permissible range, lower limit (DC) 20.4 V
● permissible range, upper limit (DC) 28.8 V
Input current
from load voltage L+ (without load), max. 100 mA
from backplane bus 5 V DC, max. 160 mA
Encoder supply
24 V encoder supply
● 24 V Yes; L+ (-0.8 V)
● Output current, max. 900 mA
Power loss
Power loss, typ. 3 W
Digital inputs
Input voltage
● for signal “0” -3 to +5V
● for signal “1” 11 to 30.2 V
Input current
● for signal “0”, max. (permissible quiescent current) 2 mA
● for signal “1”, typ. 9 mA
Input delay (for rated value of input voltage)
for standard inputs
— at “0” to “1”, min. 300 µs
Cable length
● shielded, max. 600 m
Encoder
Number of connectable encoders, max. 3
Connectable encoders
● Absolute encoder (SSI) Yes
● 2-wire sensor Yes
Encoder signals, absolute encoder (SSI)
● Cable length, shielded, max. 320 m; 320 m at 125 kHz; 160 m at 250 kHz; 60 m at 500 kHz; 20 m at 1 MHz
Interrupts/diagnostics/status information
Alarms
● Diagnostic alarm Yes
connection method / header
required front connector 20-pin
Dimensions
Width 40 mm
Height 125 mm
Depth 120 mm
Weights
Weight, approx. 235 g

Additional information

Weight 0.248 kg
Dimensions 12.8 × 15.2 × 5 cm

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