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simatic s7-300 - megaelektrik.net

simatic s7-300 - megaelektrik.net simatic s7-300 - megaelektrik.net

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SIMATIC S7-300 Function modules SM 338 ultrasonic position encoder ■ Ordering data SM 338 ultrasonic position encoder module for position detection with ultrasonic sensors with start/stop interface Bus connector 1 unit (spare part) Shield connecting element 80 mm wide, with 2 rows for 4 terminal elements each SM 388 ultrasonic position encoder module manual German Englisch Configuration package for SM 338 B) comprising manual, parameterization forms and example programs (German, English) Order No. 6ES7 338-7UH01-0AC0 6ES7 390-0AA00-0AA0 6ES7 390-5AA00-0AA0 6ES7 338-7UH00-8AC0 6ES7 338-7UH00-8BC0 6AT1 733-5DA00-2YA0 4 B) Subject to export regulations: AL: N and ECCN: EAR99S Siemens ST 70 · 2005 4/121

4 SIMATIC S7-300 Function modules SM 338 POS input module ■ Overview • Interface between a maximum of 3 absolute position encoders (SSI) and the CPU. • To provide the position-encoder values for subsequent processing in the STEP 7 program. • Enables the programmable controller’s direct response to encoder values in moving systems. Note: SIMODRIVE Sensor/Motion Connect 500 feature positionmeasuring systems and preassembled connecting cables for counting and positioning functions. Additional information is available in the Internet under: http://www.siemens.com/simatic-technology ■ Technical specifications 6ES7 338-4BC01-0AB0 Voltages and currents Load voltage L+ - Rated value (DC) 24 V - permissible range, 20.4 V lower limit (DC) - permissible range, 28.8 V upper limit (DC) Current consumption • from load voltage L+ (no load), 10 mA max. • from backplane bus 5 V DC, max. 160 mA • Power dissipation, typical 3 W Connection system • Requisite front connector 20-PIN Digital inputs Length of cable - Length of cable shielded, max. 600 m Input voltage - for signal "0" -3 to 5 V - for signal "1" 11 to 30,2 V Input current - for 0 signal, max (permissible 2 mA closed-circuit current) - for 1 signal, typical 9 mA Input delay (at rated value of the input voltage) • For standard inputs - at 0 to 1, min. 300 µs 6ES7 338-4BC01-0AB0 Sensor supply 24 V - sensor supply - 24 V Yes; L+ (-0,8 V) - Output current, max. 900 mA Sensor • Number of sensors that can be 3 connected, max. Connectable encoders - Absolute encoder (SSI) Yes - 2-wire BEROS Yes Absolute encoder (SSI) - Length of cable (shielded), max. 320 m; 320 m at 125 kHz, 160 m at 250 kHz, 60 m at 500 kHz, 20 m at 1 MHz Status information/ interrupts/ diagnostics Interrupts - Diagnostic interrupt Yes Potentials/ electrical isolation • Description Dimensions and weight • Weight, approx. • Width • Height •Depth No 235 g 40 mm 125 mm 120 mm 4/122 Siemens ST 70 · 2005

SIMATIC S7-<strong>300</strong><br />

Function modules<br />

SM 338 ultrasonic position encoder<br />

■ Ordering data<br />

SM 338 ultrasonic position<br />

encoder module<br />

for position detection with ultrasonic<br />

sensors with start/stop<br />

interface<br />

Bus connector<br />

1 unit (spare part)<br />

Shield connecting element<br />

80 mm wide, with 2 rows for<br />

4 terminal elements each<br />

SM 388 ultrasonic position<br />

encoder module manual<br />

German<br />

Englisch<br />

Configuration package<br />

for SM 338 B)<br />

comprising manual, parameterization<br />

forms and example programs<br />

(German, English)<br />

Order No.<br />

6ES7 338-7UH01-0AC0<br />

6ES7 390-0AA00-0AA0<br />

6ES7 390-5AA00-0AA0<br />

6ES7 338-7UH00-8AC0<br />

6ES7 338-7UH00-8BC0<br />

6AT1 733-5DA00-2YA0<br />

4<br />

B) Subject to export regulations: AL: N and ECCN: EAR99S<br />

Siemens ST 70 · 2005<br />

4/121

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