we keep things moving - STÃBER ANTRIEBSTECHNIK GmbH + Co ...
we keep things moving - STÃBER ANTRIEBSTECHNIK GmbH + Co ... we keep things moving - STÃBER ANTRIEBSTECHNIK GmbH + Co ...
Electrical installation Operation manual 4 4 Electrical installation 4.1 Setup PROFIBUS DP consists of at least one bus segment. One segment consists of at least two but not more than 32 stations. They are all physically connected with a bus cable. One of the stations is the master. The master is the active station on PROFIBUS. It can send or request data to/from other stations. The slaves are the passive stations on PROFIBUS. They can only exchange data with the master when the master requests this. Terminating resistors must be placed at the beginning and the end of the bus. Master no. 1 Slave no. 2 Slave no. 3 Slave no. Station (master or slave) Station with circuited terminating resistor Fig. 4-1: Setup of a bus segment If more than 32 stations are to operate on a bus or the maximum line length of a bus segment is exceeded, several bus segments must be coupled via RS 485 repeaters. The maximum number of masters and slaves within one bus segment must be decreased by one for every repeater used. The maximum number of masters and slaves over the entire bus system is 126. The maximum line length depends on the baud rate being used. The table below gives you the maximum permissible lengths for one segment and for all segments. We strongly recommend NOT using stub lines in the setup. This is only permitted during commissioning. This bus system is usually set up with shielded, two-wire lines (RS 485). It can also be set up for special applications via fiber-optic conductors. STÖBER Antriebstechnik offers the coupling to the two-wire line. This permits a maximum distance of 10,000 m. When suitable measures are taken on the master side, slaves can be coupled or decoupled during operation without having to interrupt data communication on the bus. WE KEEP THINGS MOVING ID 441687.03 16
Electrical installation Operation manual 4 Baud rate one segment all segments 9.6 to 187.5 kBaud 1000 m 10000 m 500 kBaud 400 m 4000 m 1.5 Mbaud 200 m 2000 m 3 to 12 Mbaud 100 m 1000 m These distances only apply with suitable bus cable! Segment 1 R Repeater Segment 2 Repeater R Segment 3 Fig. 4-2: Setup with more than 32 stations 4.2 Cable specifications To ensure interference-free use of the above baud rates and distances, STÖBER ANTRIEBSTECHNIK recommends using cable type A with the folloeing specification described in PROFIBUS literature: • Wave resistance: 135 to 165 Ω, at a measuring frequency of 3 to 20 MHz. • Cable capacity: < 30 pF per meter • Core cross section: > 0,34 mm² • Loop resistance: < 110 Ohm per km • Signal attenuation: Max. of 9 dB over the entire length of the line segment. • Shielding: Braided copper shield or braided shield and foil shield. Use of other types of cables is not recommended since then only slower baud rates and reduced distances may be possible. WE KEEP THINGS MOVING ID 441687.03 17
- Page 1 and 2: PROFIBUS Operation manual Fundament
- Page 3 and 4: Table of contents Operation manual
- Page 5 and 6: Introduction Operation manual 1 You
- Page 7 and 8: Notes on Safety Operation manual 2
- Page 9 and 10: Notes on Safety Operation manual 2
- Page 11 and 12: Mounting Operation manual 3 2 Remov
- Page 13 and 14: Mounting Operation manual 3 3.2 Ins
- Page 15: Mounting Operation manual 3 7 Secur
- Page 19 and 20: Fundamentals of PROFIBUS Operation
- Page 21 and 22: Fundamentals of PROFIBUS Operation
- Page 23 and 24: Bus diagnosis/LEDs Operation manual
- Page 25 and 26: Configuration of the bus system Ope
- Page 27 and 28: Configuration of the bus system Ope
- Page 29 and 30: Prozess data transmission PZD Opera
- Page 31 and 32: Control with control and status bit
- Page 33 and 34: Parameter Overview Operation manual
- Page 35 and 36: Parameter Overview Operation manual
- Page 37 and 38: Parameter Overview Operation manual
- Page 39 and 40: Parameter Overview Operation manual
- Page 41 and 42: Appendix A Operation manual 12 12 A
- Page 43 and 44: Appendix A Operation manual 12 •
- Page 45 and 46: Appendix A Operation manual 12 Erro
- Page 47 and 48: Appendix A Operation manual 12 12.3
- Page 49 and 50: Appendix A Operation manual 12 DPV1
- Page 51 and 52: SPM Appendix B PKW0 telegram Operat
- Page 53 and 54: Appendix B PKW0 telegram Operation
- Page 55 and 56: Global Presence Address registers A
Electrical installation<br />
Operation manual<br />
4<br />
Baud rate one segment all segments<br />
9.6 to 187.5 kBaud 1000 m 10000 m<br />
500 kBaud 400 m 4000 m<br />
1.5 Mbaud 200 m 2000 m<br />
3 to 12 Mbaud 100 m 1000 m<br />
These distances only apply with suitable bus cable!<br />
Segment 1<br />
R<br />
Repeater<br />
Segment 2<br />
Repeater<br />
R<br />
Segment 3<br />
Fig. 4-2: Setup with more than 32 stations<br />
4.2 Cable specifications<br />
To ensure interference-free use of the above baud rates and distances, STÖBER<br />
<strong>ANTRIEBSTECHNIK</strong> recommends using cable type A with the folloeing<br />
specification described in PROFIBUS literature:<br />
• Wave resistance: 135 to 165 Ω, at a measuring frequency of 3 to 20 MHz.<br />
• Cable capacity: < 30 pF per meter<br />
• <strong>Co</strong>re cross section: > 0,34 mm²<br />
• Loop resistance: < 110 Ohm per km<br />
• Signal attenuation: Max. of 9 dB over the entire length of the line segment.<br />
• Shielding: Braided copper shield or braided shield and foil shield.<br />
Use of other types of cables is not recommended since then only slo<strong>we</strong>r baud<br />
rates and reduced distances may be possible.<br />
WE KEEP THINGS MOVING<br />
ID 441687.03<br />
17
Change language