Field bus interface PFA 700
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Industrial & Commercial Thermal Honeywellfeer Field bus interface PFA Module subrack BGT Technical Information • GB 6 Edition 03.111 19" module for easy transmission of activation signals and feedbacks from burner control units via fieldbus cable Remote maintenance and diagnostics facilities Saves installation and wiring costs • Units can be exchanged during bus mode operation thanks to industrial plug connector system • Bus interface remains in operation when PFA is switched off (standby mode) • Certification for PROFIBUS DP

Field bus interface PFA Module subrack BGT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Examples of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 PFA 700 with PFU 760, staged On/Off burner control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.1.2 PFA 700 with PFU 760L, staged...

The field bus interface PFA is used in conjunction with the pre-wired module subrack BGT for interworking of burner control units PFU to industrial communication networks using PROFIBUS DP to control and monitor burners in industrial furnaces and firing systems, e.g. in the iron and steel, glass and ceramics, or plastics and chemical industries. As a standardized fieldbus system, the PROFIBUS DP considerably reduces development, installation and commissioning costs compared to conventional wiring. In module subrack BGT, up to nine burner control units can be inserted together with the...

Application PFA 700 with BGT SA-9U/1DP700 For interworking of up to nine burner control units PFU 760 for directly ignited burners to communication networks using PROFIBUS DP. The PFA 700 is plugged into the module subrack with printed-circuit board and rear terminal strip, together with the burner control units. PFA 710 with BGT SA-8U/1DP710 For interworking of up to eight burner control units PFU 780 for pilot and main burners to communication networks using PROFIBUS DP. The PFA 710 is plugged into the module subrack with printed-circuit board and rear terminal strip, together with the...

1.1.1 PFA 700 with PFU 760, staged On/Off burner control 1.1.2 PFA 700 with PFU 760L, staged High/Low burner control The burner can be started with reduced capacity. A UV sensor monitors the flame signal from the burner. UV sensor UVD 1 is used for continuous operation, UV sensor UVS for intermittent operation. The burner starts at low-fire rate. When the operating state is reached, the PFU 760L advises the control unit. The PLC can now pulse the air valve in order to control the burner capacity.

Application 1.1.3 PFA 710 with PFU 780, stage-controlled main burner with alternating pilot burner 1.1.4 PFA 710 with PFU 780, stage-controlled main burner with permanent pilot burner L1, N, PE Control: main burner ON/OFF The main burner can be started with reduced capacity after the operating signal from the pilot burner has been detected. The pilot burner is switched off automatically after the main burner has started up. When the main burner is switched off, the pilot burner automatically switches on again. A UV sensor monitors the flame signal from pilot and main burners. UV sensor UVD...

ignition transformers, gas and air valves or UV sensors, for example, via the individual burner control units PFU. PROFIBUS-DP The field bus interface PFA 700 integrates up to nine burner control units PFU 760 into industrial communication networks using PROFIBUS DP. The PFA 700 is plugged into the pre-wired module subrack BGT SA9U/1DP700, together with the burner control units. The field bus interface PFA 710 integrates up to eight burner control units PFU 780 into industrial communication networks using PROFIBUS DP. The PFA 710 is plugged into the pre-wired module subrack BGT SA8U/1DP710,...

3.2 Air valve The air valves used to purge the furnace or kiln can either be activated via the PROFIBUS or via a separate cable (to terminal strip X10 of the BGT – at 24 V DC to terminal 12 or 13, or at mains voltage to terminal 18). It is possible to use the PROFIBUS to communicate that purging is being carried out (by connecting mains voltage to terminal 17 of terminal strip X10 of the BGT). 3.3 BCSoft The Windows software BCSoft allows extended access to individual statistics, visualization of the process values and the parameterization of the field bus interface via an optical...

A maximum of 126 units (masters and slaves) can be connected to a PROFIBUS DP system. Each station is assigned an individual PROFIBUS address which can be set between 0 and 126 using two code switches on the PFA board. All devices are connected in a bus structure (line). Up to 32 stations (masters or slaves) can be connected in a single segment. The beginning and end of each segment is fitted with an active bus terminator. Both bus terminators must have a permanent power supply to ensure error-free operation. The power supply for the bus terminator is provided by the PFA. The bus terminator...

3.7 Configuration When planning a PROFIBUS DP system, unit-specific parameters of each station are to be taken into account. To allow for simple and standardized planning, the parameters of the PFA have been summarized in a so-called device master data file (GSD). The file structure is standardized so that it can be read by the planning devices of different manufacturers. The GSD file is supplied on a CD with the PFA. The GSD file can also be ordered at www.docuthek.com. The steps required to copy the file are described in the instructions for the automation system. 3.7.1 Bus communication...

A on A on Input bytes (PFA ▶ master) P on 1,P on 2 A on Bit Byte 0 Byte 1 DI on DI on P on 1,A 2 onPFU 1 0 PFU 9 DI on P on 1,A on 2 1 PFU 2 PFU 1 DI on 1, 2 P on 1,A onPFU 3 2 2 ϑ ϑ PFU 2 DI on 1, 2 P on A on A 1,A onPFU 4 2 3 PFU 3 ϑ DI on P Byte 2 PFU 8 1, 2 1, 2 PFU 9 1, 2 A on 1,A onPFU 1 2 P on A on DI onPFU 2 1,Pon 2 A on P on DI on P Output bytes (master ▶ PFA) A ϑ P Bit Byte 0 ϑ A DIP on P 0 PFU 1 A ϑ P 1 PFU 2 A ϑ P 2 PFU 3 A ϑ P 3 PFU 4 A P ϑ PFU 5 4 DIP on P on Output bytes (master ▶ PFA) DI 2 1, 2 1, on Bit Byte 0 Byte 1 1 PFU 1 1 PFU 3 0 A A 1 on 1 on 2 2 P P PFU 3 2 on 2 on 1...