Материал: m083300e
22 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.2Hardware
3.1.2.1View
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PROFIBUS |
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02 |
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RUN |
A |
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C |
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BF |
B |
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D |
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DIA |
24V |
0V |
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Feldbus- |
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BUS |
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anschluss |
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D-Sub |
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I/O |
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ADDRESS |
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x1 |
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901 |
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Adresse |
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4 |
333 |
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7 |
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3 |
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2 |
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6 |
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- |
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5 |
750 |
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x10 |
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PE |
PE |
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901 |
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Adresse |
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3 |
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7 |
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2 |
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6 |
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5 |
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Konfigurations- |
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Schnittstelle |
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Fig. 3-1: Fieldbus coupler 750-333 PROFIBUS DP/V1
Status der Betriebsspannung -Leistungskontakte -System
Datenkontakte
Versorgung 24V
0V
Versorgung über Leistungskontakte 24V
0V
Leistungskontakte
g033300d
The fieldbus coupler comprises of:
•Supply module with Internal system supply module for the system supply as well as power jumper contacts for the field supply via I/O module assemblies.
•Fieldbus interface with the bus connection
•2 rotary switches for the station address (decimal)
•Display elements (LED's) for status display of the operation, the bus communication, the operating voltages as well as for fault messages and diagnosis
•Electronics for communication with the I/O modules (internal bus) and the fieldbus interface
D R A F T |
WAGO-I/O-SYSTEM 750 |
2001-02-27 |
PROFIBUS |
Fieldbus coupler / controller |
• 23 |
Fieldbus coupler 750-333 |
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3.1.2.2Device supply
The supply is made via terminal bocks with CAGE CLAMP® connection. The device supply is intended both for the system and the field units.
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FELDBUSNTEIRFACE |
ELEKTRONIK |
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24V |
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1 |
5 |
DC |
Bus- |
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24V/0V |
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10nF |
klemmen |
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DC |
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0V |
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2 |
6 |
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24V |
24V |
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ELEKTRONIK |
FELDBUS |
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INTERFACE |
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7 |
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0V |
0V |
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10nF
4 8
750-333
Fig. 3-2: Device supply |
g012105d |
The integrated internal system supply module generates the necessary voltage to supply the electronics and the connected I/O modules.
The fieldbus interface is supplied with electrically isolated voltage from the internal system supply module.
WAGO-I/O-SYSTEM 750 |
D R A F T |
PROFIBUS |
2001-02-27 |
24 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.2.3Fieldbus connection
The PROFIBUS interface is designed as a Sub-D connection in accordance with the US Standard EIA RS 485 for cable linked data transmission.
9-pol. D-Sub-Buchse
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5 |
DGND |
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9 |
RTS |
RxD/TxD-N |
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8 |
RxD/TxD-P |
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3 |
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VP |
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6 |
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1 |
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Fig. 3-3: Bus connection, D-SUB |
g012102d |
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Pin |
Signal |
Description |
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3 |
RxD(TxD)-P |
Transmit (receive) signal |
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4 |
RTS |
Ready To Send |
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5 |
GND |
Supply ground (earth) |
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6 |
Vcc |
Voltage supply |
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8 |
RxD(TxD) N |
Transmit (receive) signal |
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The electrical isolation between the fieldbus system and the electronics is achieved by means of DC/DC converters and optocouplers in the fieldbus interface.
The connection point is mechanically lowered permitting fitting in an 80 mm high switch box once connected.
D R A F T |
WAGO-I/O-SYSTEM 750 |
2001-02-27 |
PROFIBUS |
Fieldbus coupler / controller |
• 25 |
Fieldbus coupler 750-333 |
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3.1.2.4Display elements
The operating condition of the fieldbus coupler or node is signalled via light diodes (LED).
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PROFIBUS |
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RUN |
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A |
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C |
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BF |
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B |
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D |
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DIA |
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24V |
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0V |
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BUS |
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I/O |
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+ |
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Fig. 3-4: |
Display elements 750-333 |
g012106x |
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LED |
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Colour |
Meaning |
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RUN |
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green |
The 'RUN' LED indicates to the operator if the fieldbus coupler / |
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controller is correctly initialised. |
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BF |
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red |
The 'BF'-LED indicates whether the communication functions via |
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the PROFIBUS. |
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DIA |
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red |
The 'DIA' LED indicates an external diagnosis. The signalling is not |
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supported by all devices. |
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BUS |
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red |
The 'BUS'-LED signals a projecting fault. |
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IO |
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red /green |
The 'I/O'-LED indicates the operation of the node and signals faults |
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/ orange |
encountered. |
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A |
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green |
Status of the operating voltage system |
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C |
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green |
Status of the operating voltage – power jumper contacts |
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WAGO-I/O-SYSTEM 750 |
D R A F T |
PROFIBUS |
2001-02-27 |
26 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.2.5Station address
The station address (decimal) is determined using two rotary switches on the electronic module.
ADDRESS x1
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901 |
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8 |
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2 |
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7 |
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3 |
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6 |
4 |
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5 |
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x10 |
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901 |
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8 |
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2 |
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7 |
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3 |
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6 |
4 |
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5 |
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Fig. 3-5: Setting the station address |
g012102d |
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The switch „x1“ determines the units position of the address. The switch „x10“ determines the tens positions of the address. Valid station addresses are between 1 and 99. The coupler also permits the station address 0.
The station address is taken over by the fieldbus coupler after switching on the device (initialisation phase). Adjustments of the switch have no effect during operation.
3.1.2.6Configuration interface
The configuration interface used for the communication with WAGO-I/O- CHECK or for firmware upload is located behind the cover flap.
Klappe
öffnen
Konfigurations-
Schnittstelle
Fig. 3-6: Configuration interface g01xx06d
The communication cable (750-920) is connected to the 4 pole header.
D R A F T |
WAGO-I/O-SYSTEM 750 |
2001-02-27 |
PROFIBUS |