A modular electrical bus system for a valve manifold has a main communication module with a plurality of modular I/O units each having a plurality of I/O fittings being both electrically and mechanically connectable together via a bridge member connecting adjacent units and the main communication module. At least one of the modular I/O units is also mechanically separable from and maintains communication connection to the main communication module. One or both of the modular IO I/O units and main communication module may have an alpha-numeric display.
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0. 43. A main communication module in connection with an electrical serial fieldbus communication system, said main communication module comprising:
an electronic numeric or alpha-numeric display on a face of the main communication module for displaying information relative thereto;
said main communication module constructed to be connectable to a plurality of external output devices; and
said communication module being interposed between a bank of I/O units and a bank of valve units.
0. 1. An electrical serial fieldbus communication system comprising:
a module having an electronic numeric or alpha-numeric display thereon for displaying information relative thereto; and
said module being constructed to automatically select a choice of two power sources fed into said module.
0. 2. An electrical serial fieldbus communication system comprising:
a module having an electronic numeric or alpha-numeric display thereon for displaying information relative thereto; and
said module being a communication module constructed to be connected to a plurality of external output devices.
0. 3. An electrical serial fieldbus communication system comprising:
a module having an electronic numeric or alpha-numeric display thereon for displaying information relative thereto; and
said module being an I/O modular unit having externally available connectors for connecting to a plurality of input sensors and/or output devices.
0. 4. An electrical serial fieldbus communication system as defined in
said I/O unit having a first side with an interlocking extension of a first shape; and
said I/O unit having a second opposite side with two spaced interlocking extensions with a cavity therebetween that is complementary shaped to interlock with an interlocking extension having said first shape.
0. 5. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display mounted on a main front face of said I/O unit; and
said interlocking extensions having front faces recessed with respect to a main face of said I/O unit.
0. 6. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said I/O unit.
0. 7. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said respective I/O unit.
0. 8. An electrical serial fieldbus communication system comprising:
a module having an electronic numeric or alpha-numeric display thereon for displaying information relative thereto;
said module being an I/O unit for a valve manifold;
said I/O unit having a first side with an interlocking extension of a first shape;
said I/O unit having a second opposite side with two spaced interlocking extensions with a cavity therebetween that is complementary shaped to interlock with an interlocking extension having said first shape;
said interlocking extensions having front faces recessed with respect to a main face of said I/O unit;
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said I/O unit;
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said respective I/O unit; and
said I/O unit being constructed to automatically select a choice of two power sources fed into each I/O unit.
0. 9. An electrical serial fieldbus communication system as defined in
said module having a first side with an interlocking extension of a first shape; and
said module having a second opposite side with two spaced interlocking extensions with a cavity therebetween that is complementary shaped to interlock with an interlocking extension having said first shape.
0. 10. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display mounted on a main front face of said module; and
said interlocking extensions having front faces recessed with respect to a main face of said module.
0. 11. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said module.
0. 12. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said module.
0. 13. An electrical serial fieldbus communication system as defined in
said I/O unit having a main front face on which the electronic numeric or alpha-numeric display is mounted;
said I/O unit having two opposite sides with an interlocking extension protruding from said sides; and
said interlocking extensions having respective front faces recessed with respect to said main front face.
0. 14. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said I/O unit.
0. 15. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said I/O unit.
0. 16. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said module.
0. 17. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said module.
0. 18. An electrical serial fieldbus communication system as defined in
said module having a main front face on which the electronic numeric or alpha-numeric display is mounted;
said module having two opposite sides with interlocking extension protruding therefrom; and
said interlocking extensions having respective front faces recessed with respect to said main front face.
0. 19. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said module.
0. 20. An electrical serial fieldbus communication system as defined in
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said module.
0. 21. An electrical serial fieldbus communication system as defined in
said module being an I/O unit.
0. 22. An I/O unit in connection with a serial fieldbus system comprising:
a housing having a plurality of externally available connectors for connecting to a plurality of input sensors and/or output devices; and
an electronic numeric or alpha-numeric display mounted on a face of the I/O unit for displaying information relative thereto.
0. 23. An I/O unit as defined in
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said I/O unit.
0. 24. An I/O unit as defined in
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said I/O unit.
0. 25. An I/O unit as defined in
said operable buttons being positioned laterally at each side of said electronic numeric or alpha-numeric display; and
said electronic numeric or alpha-numeric display extending laterally across a front face of said I/O unit near an upper end of said I/O unit.
0. 26. An I/O unit as defined in
said I/O unit having a first side with an interlocking extension of a first shape; and
said I/O unit having a second opposite side with two spaced interlocking extensions with a cavity therebetween that is complementary shaped to receive an interlocking extension having said first shape.
0. 27. An I/O unit as defined in
said electronic numeric or alpha-numeric display mounted on a main front face of said I/O unit; and
said interlocking extensions having front faces recessed with respect to a main face of said I/O unit.
0. 28. An I/O unit as defined in
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said I/O unit.
0. 29. An I/O unit as defined in
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said I/O unit.
0. 30. An I/O unit as defined in
said operable buttons being positioned laterally at each side of said electronic numeric or alpha-numeric display.
0. 31. A main communication module in connection with an electrical serial fieldbus communication system, said main communication module comprising:
said main communication module constructed to be connectable to a plurality of external output devices; and
an electronic numeric or alpha-numeric display on a face of the main communication module for displaying information relative thereto.
0. 32. A main communication module as defined in
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said main communication module.
0. 33. A main communication module as defined in
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said main communication module.
0. 34. A main communication module as defined in
said operable buttons being positioned laterally at each side of said electronic numeric or alpha-numeric display; and
said electronic numeric or alpha-numeric display extending laterally across a front face of said main communication module near an upper end of said main communication module.
0. 35. A main communication module as defined in
said main communication module having a first side with an interlocking extension of a first shape; and
said main communication module having a second opposite side with two spaced interlocking extensions with a cavity therebetween that is complementary shaped to receive an interlocking extension having said first shape.
0. 36. A main communication module as defined in
said electronic numeric or alpha-numeric display mounted on a main front face of said main communication module; and
said interlocking extensions having front faces recessed with respect to a main face of said main communication module.
0. 37. A main communication module as defined in
said electronic numeric or alpha-numeric display being manually manipulated for scrolling through menus and different indicia relating to different parameters of said main communication module.
0. 38. A main communication module as defined in
said electronic numeric or alpha-numeric display having operable buttons for scrolling through menus and different indicia relating to different parameters of said main communication module.
0. 39. A main communication module as defined in
said operable buttons being positioned laterally at each side of said electronic numeric or alpha-numeric display; and
said electronic numeric or alpha-numeric display extending laterally across a front face of said main communication module near an upper end of said main communication module.
0. 40. An electrical serial fieldbus communication system as defined in
said communication module being interposed between a bank of I/O units and a bank of valve units.
0. 41. A main communication module as defined in
said communication module being interposed between a bank of I/O units and a bank of valve units.
0. 42. An I/O unit as defined in
said I/O unit being constructed to automatically select a choice of two power sources fed into said I/O unit.
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RAM RAIL compliant fastener. Each bus-in and bus-out plate 31 and 32 has two electrical fittings 45 and 47. The upper located fitting 45 is used for network power and communication through cables 36 and the lower fitting 47 is used for transfer of auxiliary power through cables 38 to the remotely mounted I/O modules 18 as described later. Other remote module stations 35 with a desired number of I/O modules 18 may be serially attached in the same fashion.
Other substations 40 through the use of electrical bus cables 36 and 38 connect to fitting fittings 45 and 47 and communication module 39 for controlling the bank of solenoids 12 and valve manifold 14 in substation 40. It is of course foreseen that wireless power and communication transmission may also replace bus cables 36 and 38.
The structure of each module 18 is more clearly shown in
One side 41 of housing 19 has an interlocking extension 42 extending laterally. The interlocking extension 42 has a front face 44 recessed from main front face 24. The front face has electrical fittings 46 and a central threaded insert 48. The shown interlocking extension may be dovetail in shape with angled side walls 50 and a straight end wall 52 parallel to side 58. The extension 42 is centrally located between the upper end 54 and lower end 56 of housing 19.
The other side 58 of housing 19 has two complementary shaped interlocking extensions 60 near the upper end 54 and lower end 56. The extensions have outer side walls 62 that are flush with respective upper and lower ends 54 and 56 of housing 19. Inner angled walls 66 are spaced appropriately to form a dove tail shaped cavity 70 to fit extension 42 of an adjacent module 18. Each extension 60 has a front face 72 that is also recessed with respect to main front face 24 in the same fashion as extension 42. Each extension 60 has an electrical fitting 46 and a threaded insert 48. As shown in
The interior of the module 18 housing is more clearly shown in
Referring now to
Once the board 86 is affixed to cover 96 through long fasteners 90, the boards 86 and 88 are closed within housing 19 by placement of a backing member 112 of housing 19. The backing member 112 may be secured to cover 96 to enclose the components within the housing 19 as shown in
As shown in
Clip 20 as shown more clearly in
The clip 20 also has a molded-in conductive strap 118 that has three annular contact shoulders 120 that are exposed in counter bores 122 about apertures 124. Conductive threaded fasteners 126 extend through the apertures 124, engage the contact shoulders 122 and threaded insert 48 in the extensions 42 and 60 in adjacent modules 18. The fasteners 126 both mechanically affix two adjacent modules together as well as provide a continuous grounding circuit between two adjacent modules 18.
The completion of the grounding circuit is described by a referring to
The grounding circuit through the modules 18 and clips 20 is shown schematically in
The clip 20 thus grounds the modules 18 together. The clip 20 also electrically connects modules 18 together with a power source and auxiliary power connector 43 through fittings 78 that connect to fittings 46 and also mechanically affixes modules 18 together. The interlocking extensions 42, 60 and cavity 70 of two adjacent modules 18 expedites mounting one module 18 to another by temporarily holding the modules 18 in place against mounting surface 28 while they become affixed by clip 20.
Furthermore, this construction provides for an intermediately positioned I/O module to be removed by lifting away from mounting surface 28. By removing adjacent clips 20, the extensions 42, 60 and cavity 70 are exposed and a module 18 can be lifted out. A replacement I/O module 18 can be positioned in the space provided without moving the other I/O modules 18. Optionally, the other I/O modules can be moved together and joined together through the interlocking connection eliminating the space left by the removed I/O module. Furthermore, if an additional I/O module 18 is needed, the plates 31, 32 or 34 can be temporarily removed, to form a space where an additional module 18 can then be introduced and the plates 31, 32 and 34 can be re-connected to complete the mechanical, electrical and ground connection. Furthermore, in similar fashion, an additional module 18 can be introduced between two other modules 18.
The mounting plates 32 and 34 can be used on either the main station 16 or the remote distribution stations 35 and 40. Bus-in plates 31 can be used for the remote stations 35. The modular properties of the I/O modules 18 and the components 31, 32 and 34 provide for a wide range of distribution and optional constructions.
An alternate construction for providing a modular I/O an I/O module for a fieldbus valve manifold is shown in
Each module similarly has an alpha-numeric display 222 which indicates the status or other parameters of each signal connected to fitting 226. Label holders 221 may also be built into each housing 219.
Another embodiment is shown in
The electronics of the modular bus I/O system has an alpha-numeric graphical display 22, 222, 322 and 422 or LED, LCD type display that can display the status and other parameters of the I/O modules and the main communication module and other verbiage such as errors or addresses of the modules. The display may be a commercially available pixel display product. It is also foreseen that other LED, LCD or other visual display panels may be suitable. The display 22 has two operating push buttons 130 which may scroll through menus as prepared for the particular modular banks and I/O modules. The display 22 is capable of scrolling longer messages as needed.
The display 22 can be used to display the status of the I/O that is connected. For example a positioned square is lit with the number of the I/O being formed by blackout so the number is viewed in a negative formation within a lighted square.
Proper manipulation of the operating push buttons 130 can scroll through menus to display and adjust certain properties many of which were previously only viewable through external devices. For example, the following node properties may be viewed: network node address, Baud rate, I/O sizes diagnostic information and firmware revision levels. It may also be used to display and allow the user to adjust network address, the Baud rate, the parameters for I/O sizes, and self test mode.
The valve manifold sub-node properties may be viewed for example, I/O range, communication errors, short circuit errors, aux (auxiliary) power status, and firmware revisions. The display 22 may also be used to display and adjust the individual module self test. The I/O module menu may display for example, the I/O range, type analog digital, input, output, input/output, NPN or PNP, communication errors, short circuit errors, aux power status, analog signals, firmware revisions, and may be used to display and allow the user to adjust the individual module self test mode and debouncing delay settings. An electronic alpha-numeric display 22 as shown in
The main network attached to the fieldbus system has a host controller that allows each attached module to be addressed. Rather than manually setting dip switches, there can be an auto address scheme where each module is sequentially addressed so the main communication module knows where the signal of the particular I/O fitting 26 resides.
An optional memory board may be incorporated into the main communication module or as an additional module which can save the initial parameters. The parameters can then be changed at an I/O module and downloaded back to the memory module. A manual configuration board can be substituted for the memory board. In this structure configuration, one can replace the main communication node without reconfiguration of the new unit.
Each I/O module may have an internal sensing circuit that automatically recognizes when the network power falls below a usable level and will automatically switch to the auxiliary power source provided by the lower fitting 43 in the main communication module 30 from the sub-network power also provided through the lower fitting 43 in the main communication module 30. If one power system falters or stops, there may be an automatic switch to change over to the other power source. Auxiliary power may also be provided to a lower fitting 47 in the bus-in plate 31.
In this fashion a flexible distribution bus system can be made from housing components made from plastic or other types of desirable materials that are non-conductive by incorporating a separate grounding system built therein. The ground system no longer relies on the conductivity and abutment of metallic housings of the modules. The individual I/O modules are self contained and protectively enclose the electronic boards. The modularity and self containment of the modules allows them to be removed and remotely mounted by themselves as remote substations either individually or with other connected modules and valves.
The removal and replacement of the modules are expeditiously accomplished through its unique connecting structure. The clip easily connects the modules together and the modules are constructed to provide transitional integrity of assembly while the clip is being connected to adjacent modules. Furthermore, the modules by being self contained units can be remotely positioned without the need of specialized end plates.
The display 22, 222, 322, 422 can allow the user to see important properties by scrolling through a menu as needed and even remotely adjust certain properties. The modules automatic addressing system and automatic power selection provides for a more trouble free and updated fieldbus system that is particularly useful for solenoid actuated manifold valve and I/O systems. Modules as used in this application may cover a stand alone unit which houses a display.
Other variations and modifications are possible without departing from the scope and spirit of the present invention as defined by the appended claims.
Eskew, John F., Gibson, Adam, Hundt, Michael W., De Carolis, Enrico
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