Документ: m083300e, страницы 76-80 | База учебных материалов

72 • Fieldbus coupler / controller

Fieldbus coupler 750-333

3.1.11.2Internal bus fault

An internal bus fault is created, for example, if an I/O module is removed. If this fault occurs during operation the output modules behave in the same manner as an I/O module stop. The input process image is set in accordance with the projected strategy.

The "I/O" LED blinks red. The slave generates a detailed fault message.

Once the internal bus fault has been overcome the coupler starts up automatically in accordance with the parameterised restart routine. The process data transfer is then restarted and the outputs reset in the nodes.

D R A F T	WAGO-I/O-SYSTEM 750
2001-02-27	PROFIBUS

		Fieldbus coupler / controller • 73
		Fieldbus coupler 750-333

3.1.12 Technical data

	System data
	Number of I/O modules	96 with repeater

	Number of I/O points	approx. 6000 (master dependent)

	Transmission medium	Cu cable in accordance with EN 50170

	Bus segment length	100 m ... 1200 m
		(baud rate dependent / cable dependent)

	Transmission rate	9.6 kBaud ... 12 MBaud

	Transmission time with 10 modules	typically 1 ms
	each with 32 DI and 32 DO, 12	max. 3.3 ms
	MBaud

	Bus connection	1 x D-SUB 9; socket

	Standards and approvals
	UL (UL508)	E175199

	Standard	EN 50 170

	Conformity marking	CE

	Technical data
	Number of I/O modules	63

	Protocol	DP / DPV1

	Input process image	max. 128 Byte

	Output process image	max. 128 Byte

	Configuration	via PC or controls

	Voltage supply	DC 24 V (-15 % / + 20 %)

	Input currentmax	500 mA at 24 V
	Internal system supply module effi-	87 %
	ciency

	Internal power consumption	200 mA at 5 V

	Total current for I/O modules	1800 mA at 5 V

	Voltage via power jumper contacts	DC 24 V (-15 % / + 20 %)

	Current via power jumper contactmax	DC 10 A
	Dimensions (mm) B x H x T	51 x 65* x 100 (*from top edge of mounting rail)

	Weight	approx. 195 g

	EMC interference resistance	as per EN 50082-2 (95)

	EMC interference transmission	as per EN 50081-2 (94)

WAGO-I/O-SYSTEM 750	D R A F T
PROFIBUS	2001-02-27

74 • Fieldbus coupler / controller

Fieldbus Controller 750-833

3.2 Fieldbus Controller 750-833

This chapter includes:

3.2.1	Description ......................................................................................		76
3.2.2	Hardware.........................................................................................		77
3.2.2.1	View .........................................................................................		77
3.2.2.2	Device supply...........................................................................		78
3.2.2.3	Fieldbus connection..................................................................		79
3.2.2.4	Display elements ......................................................................		80
3.2.2.5	Station address..........................................................................		81
3.2.2.6	Configuration and programming interface ...............................		81
3.2.2.7	Operating mode switch.............................................................		82
3.2.3	Operating system.............................................................................		83
3.2.3.1	Run-up......................................................................................		83
3.2.3.2	PLC cycle .................................................................................		83
3.2.4	Process image..................................................................................		85
3.2.4.1	Local process image .................................................................		85
3.2.4.2	Allocation of the input and output data....................................		86
3.2.5	Configuration ..................................................................................		87
3.2.5.1	GSD files..................................................................................		88
3.2.5.2	Identification bytes ...................................................................		89
3.2.5.3	Example....................................................................................		92
3.2.6	Parameterisation of the controllers..................................................		94
3.2.7	Configuration of the process data channels ....................................		96
3.2.8	Configuration and parameterisation of I/O modules.......................		97
3.2.8.1	Digital I/O modules..................................................................		97
3.2.8.1.1	2	DI I/O modules......................................................................	97
3.2.8.1.2	4	DI I/O modules......................................................................	98
3.2.8.1.3	2	DI I/O modules with 1 bit diagn. per channel .......................	99
3.2.8.1.4	2	DO I/O modules ..................................................................	100
3.2.8.1.5	2	DO I/O modules with 1 bit diagn. per channel....................	101
3.2.8.1.6	2	DO I/O modules with 2 bit diagn. per channel....................	102
3.2.8.1.7	4	DO I/O modules ..................................................................	103
3.2.8.1.8	2	DI/DO I/O module with 1 bit diagn. per channel................	104
3.2.8.1.9	Potential supply modules with diagnosis ...............................		105
3.2.8.2	Analog I/O modules ...............................................................		106
3.2.8.2.1	2	AI modules ..........................................................................	106
3.2.8.2.2	4	AI module............................................................................	107
3.2.8.2.3	2	AO modules.........................................................................	108
3.2.8.3	Special digital modules ..........................................................		109
3.2.8.3.1	Counter modules ....................................................................		109
3.2.8.3.2	PWM module .........................................................................		110
3.2.8.4	Distance and Angle Messurment Modules.............................		111
3.2.8.4.1	SSI generator interface ...........................................................		111
3.2.8.4.2	Incremental encoder interface ................................................		112
3.2.8.4.3	Digital impulse interface ........................................................		113
3.2.8.5	Serial interfaces ......................................................................		114

D R A F T	WAGO-I/O-SYSTEM 750
2001-02-27	PROFIBUS

	Fieldbus coupler / controller	• 75
	Fieldbus Controller 750-833
3.2.9	Diagnosis.......................................................................................	115
3.2.9.1	Stations status 1 to 3...............................................................	116
3.2.9.2	PROFIBUS-DP master address..............................................	116
3.2.9.3	Manufacturer identification....................................................	116
3.2.9.4	Identification based diagnosis ................................................	116
3.2.9.5	Device status ..........................................................................	117
3.2.9.5.1	Internal status messages and arguments.................................	118
3.2.9.5.2	Internal bus status messages and arguments ..........................	118
3.2.9.5.3	PROFIBUS-DP status messages and arguments....................	119
3.2.9.5.4	PLC-RTS status messages and arguments .............................	119
3.2.9.6	Channel based diagnosis ........................................................	120
3.2.9.6.1	Fault types of I/O modules with diagnostic capability...........	121
3.2.9.6.2	I/O modules fault cases ..........................................................	122
3.2.10	Commissioning (start-up) with WAGO-I/O-PRO ........................	123
3.2.11	LED signalling ..............................................................................	124
3.2.11.1	Blink code ..............................................................................	124
3.2.11.2	Fieldbus status........................................................................	125
3.2.11.3	Fault message by means of blink code of the BUS-LED .......	126
3.2.11.4	Node status .............................................................................	127
3.2.11.5	Fault message via blink code from the I/O-LED....................	128
3.2.11.6	Supply voltage status..............................................................	129
3.2.12	Fault behaviour .............................................................................	129
3.2.12.1	Fieldbus failure.......................................................................	129
3.2.12.2	Internal bus fault.....................................................................	130
3.2.13	Technical data ...............................................................................	131

WAGO-I/O-SYSTEM 750	D R A F T
PROFIBUS	2001-02-27

76 • Fieldbus coupler / controller

Fieldbus Controller 750-833

3.2.1Description

The programmable fieldbus coupler 750-833 combines the PROFIBUS DPfunctions of the fieldbus coupler 750-333 with that of a programmable logic control (PLC). The application program is created with WAGO-I/O-PRO in accordance with IEC 61131-3. The programmer has access to all fieldbus and I/O data.

•Load relief for the central controls using decentral processing units

•Dividing complex applications into individual testable units

•Programmable fault reaction in the case of a fieldbus system failure

•Load relief of the communication system PROFIBUS DP by signal processing

•Reduction of reaction times by direct access to the periphery (without having pass through the fieldbus system PROFIBUS DP)

•Autarcic smallest scale controls (station address 0)

•Use for decentral and central control

•Programmable in accordance with IEC 61131-3 in all 5 languages: IL, LD, FBD, ST and SFC

In the initialisation phase the bus coupler determines the physical structure of the node and creates the process image of all inputs and outputs on this basis. I/O modules with a bit width of less than 8 can only be grouped to one byte in each case in order to optimise the address space.

It is also still possible to deactivate projected I/O modules. In this manner the physical structure of the node can be individually structured with reference to its periphery signals, without touching an already existing control application.

The diagnosis concept is based on the identification and channel based diagnosis in accordance with EN 50170. In this manner it is not necessary to program modules for evaluation of the manufacturer specific diagnosis information.

•Max. process data length 128 Byte (input and output process image)

•Automatic recognition of the transmission speed on the PROFIBUS of

9.6kBd to 12 MBd

•All I/O modules from the WAGO-I/O-SYSTEM 750 are supported

•Configuration modules can be parameterised as wildcards.

•Parameterable substitute value for each channel

•D-Sub 9 pole bus connection

D R A F T	WAGO-I/O-SYSTEM 750
2001-02-27	PROFIBUS

Материал: m083300e

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