S4 Open Appliances V5
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The document discusses the S4 Open Appliances designed for integrating building automation solutions with various protocols including N2 and BACnet. It highlights features such as automatic device discovery, configuration, and the ability to manage both legacy and new devices from a single interface. Additionally, it provides guidance on transitioning from legacy systems to modern solutions, ensuring seamless operation across different controllers and devices.
S4 Open Appliances V5
- 1. Steven E. Jones The S4 Group Inc. © 2011 The S4 Group, Inc. 1
- 2. M3 / M5 Workstation Ethernet Network N30 / NCM Supervisory Controller N2 Protocol (RS-485) VMA Device DX-9100 TEC2145-2 MS-MIG3120 TCS Basys (N2B (System 91 (N2 Open (Metasys (VND Device) Protocol) Protocol) Protocol) Integrator) 2 © 2011 The S4 Group, Inc.
- 3. S4 Open appliances are designed to facilitate Integration of cost effective, building automation solutions. Extends the reach of Metasys® to enterprise solutions Automatically discover and configure N2 devices Merge multiple N2 buses into a virtual N2 bus Automatically translate N2 addresses Extend N2 interfaces over Ethernet TCP/IP connections Enhance Metasys® with Open interfaces including OPC, BACnet, and others Control all S4 Open appliances through one S4 Open: Management Console. All N2 sub-protocols are fully supported. (N2B, System 91, N2 Open, Vendor Devices, Metasys Integrator) ◦ ALL N2 devices are supported Works with any generation of Metasys that supports N2 ◦ See http://www.thes4group.com/Downloads/PDF/metasys_eng.pdf 3 © 2011 The S4 Group, Inc.
- 4. Salvage Legacy N2 Field Devices ◦ Benefit: Leverage existing infrastructure ◦ Replace HMI with BACnet or OPC based solution ◦ Merge legacy busses if desired ◦ Manage new and existing equipment from one interface Phase Out Legacy N2 Field Devices ◦ Benefit: Cost of upgrading can be distributed over any length of time ◦ Replace HMI with BACnet or OPC based solution ◦ Gradually replace Legacy equipment with new solution ◦ Transitioning to new equipment is seamless ◦ Unplug N2 Router when upgrade is complete 4 © 2011 The S4 Group, Inc.
- 5. The legacy supervisory controller can be removed completely if the new head end can perform the following: ◦ Occupied / Unoccupied schedules. The N2 field devices normally do not include a time clock so they completely rely on the head end for scheduling activities. ◦ Trending and logging activities. ◦ Global Variable support. For example, an outside air temperature sensor on one N2 device may be shared with other N2 devices on the same N2 bus or with N2 devices on other Metasys networks. ◦ Custom logic coded into the NCM or other supervisory controllers with GPL, JC Basic, or other languages. If the new head end meets the above criteria and the legacy supervisory controller is removed the S4 Open appliance will act as bus master. 5 © 2011 The S4 Group, Inc.
- 6. MODEL N2 UPSTREAM DOWNSTREAM DEVICES N2 PORT N2 PORTS BACnet-N2 Router-16 16 No 1 BACnet-N2 Router-32 32 No 1 BACnet-N2 Router-64 64 No 1 BACnet-N2 Router-128 128 No 1 BACnet-N2 Router-256 253 (Note 2) Yes (Note 1) 1 (Expandable) OPC-N2 Router-16 16 No 1 OPC-N2 Router-32 32 No 1 OPC-N2 Router-64 64 No 1 OPC-N2 Router-128 128 No 1 OPC-N2 Router-256 253 (Note 2) Yes (Note 1) 1 (Expandable) Note 1: Utilizing the Upstream N2 port allows you keep legacy Metasys supervisory controllers ® in place. Note 2: Johnson Controls reserves N2 addresses 0, 254, and 255. 6 © 2011 The S4 Group, Inc.
- 7. Validate that the customer’s N2 Bus is within specifications with a digital volt meter or a… ComBus Quick Tester ◦ Quickly tests the entire N2 system ◦ Checks bus voltages indicating Pass/Fail ◦ Counts all devices on the bus and identifies each by hardware type and N2 address ◦ Works as a Master Controller to check the entire system or segments of the network Schedule and complete any maintenance work before starting integration 7 © 2011 The S4 Group, Inc.
- 8. Using JCI’s Metasys ® Utilities Identify ◦ What applications are loaded on existing controllers ◦ Custom logic in the supervisory controller that needs to be replicated ◦ Which points are relevant to bring in to the new head-end ◦ Which controllers are obsolete and require replacement Metasys ® Utilities are available through distribution ◦ M-Tools package HVAC Pro – N2 Open and VMA devices GX9100 – DX-9100 If you do not have Metasys expertise ◦ Find an independent consultant ◦ DO NOT Guess! 8 © 2011 The S4 Group, Inc.
- 9. 9 © 2011 The S4 Group, Inc.
- 10. Each N2 Device Type Template starts out with a header section Next is the Point Map section Used by Auto Configure Wizard ◦ Application Device Type ◦ Hardware Device Type ◦ Probe For Points Can be manually assigned Field customizable Stored in On-board Catalog Off-line library available Unique Device Concerns ◦ VND ◦ MIG ◦ Point Multiplexer © 2011 The S4 Group, Inc.10
- 11. Install S4 Open Management Console ◦ Free management utility provided by S4 that works as a Microsoft Management Console snap-in Load Device Type Templates Run Auto Configure Wizard ◦ You will need to manually assign device type templates to vendor devices after completion 11 © 2011 The S4 Group, Inc.
- 12. Note: N2 devices will appear off-line to the supervisory controller during the auto configuration process. 12 © 2011 The S4 Group, Inc.
- 13. With the management console you can… ◦ Test read and write to any point on any device ◦ Review detailed information on any device ◦ Rename, create, and delete points or devices, real or virtual ◦ Manage all S4 Open appliances detected on the Ethernet network 13 © 2011 The S4 Group, Inc.
- 14. M3 / M5 Workstation Replacement Workstation Ethernet Network N30 / NCM Supervisory Controller Install the replacement OPC or BACnet HMI / Head End S4 Open Appliance N2 Protocol (RS-485) VMA Device DX-9100 TEC2145-2 MS-MIG3120 TCS Basys (N2B (System 91 (N2 Open (Metasys (VND Device) Protocol) Protocol) Protocol) Integrator) 14 © 2011 The S4 Group, Inc.
- 15. Develop Graphics for HMI If the legacy head end is being removed: ◦ Define Schedules ◦ Define Trends ◦ Replace any Global Variables ◦ Replace any supervisory controller logic Be aware: the legacy head end and the replacement workstation may both try to control the same points! ◦ Last one in wins 15 © 2011 The S4 Group, Inc.
- 16. M3 / M5 Workstation Replacement Workstation Ethernet Network N30 / NCM Remove Legacy Metasys Supervisory Controller Supervisory Controller and Workstation (Optional) S4 Open Appliance N2 Protocol (RS-485) VMA Device DX-9100 TEC2145-2 MS-MIG3120 TCS Basys (N2B (System 91 (N2 Open (Metasys (VND Device) Protocol) Protocol) Protocol) Integrator) 16 © 2011 The S4 Group, Inc.
- 17. BACnet IP BACnet-N2 Router Device ID and Network ◦ This can be set and easily modified via the management console ◦ The entire Metasys installation is published as one BACnet device Standard BACnet Data Objects are Supported Instance Numbers are based on the published N2 address ◦ Six digit Instance Numbers ◦ Leftmost 3 Digits reflect the source N2 address ◦ Rightmost 3 digits make the object unique 17 © 2011 The S4 Group, Inc.
- 18. The S4 Open: Management Console transparently creates a local OPC Proxy Server and establishes a tunnel to the OPC-N2 Router The OPC Proxy Server, and associated tunnel, are established on the local machine during the Auto Detection process, or manual linking process, for S4 Open appliances. From the standpoint of an OPC client application, it is talking to a local OPC server so there are no DCOM configuration or security issues 18 © 2011 The S4 Group, Inc.
- 19. Optonal M3 / M5 Replacement Workstation Workstation Ethernet Network N30 / NCM Supervisory S4 Open Controller Appliance N2 Protocol (RS-485) VMA Device DX-9100 TEC2145-2 MS-MIG3120 TCS Basys (N2B (System 91 (N2 Open (Metasys (VND Device) Protocol) Protocol) Protocol) Integrator) VMA Device DX-9100 TEC2145-2 MS-MIG3120 TCS Basys (N2B (System 91 (N2 Open (Metasys (VND Device) Protocol) Protocol) Protocol) Integrator) 19 © 2011 The S4 Group, Inc.
- 20. No two devices can have the same address so… ◦ The N2 Router translates N2 addresses to resolve duplicate addresses ◦ Device on the lower bus keeps original address ◦ No need to manually change N2 device switches 20 © 2011 The S4 Group, Inc.
- 21. The N2 bus is limited to 9600 baud half-duplex ◦ The S4 Open appliance protects the N2 bus from becoming overwhelmed with requests from high speed Ethernet interfaces ◦ The S4 Open appliance has built in performance and error monitoring capabilities Installation problems ◦ Validate the N2 bus ◦ Repair any electrical or installation problems Polling a large number of points at high frequency ◦ EMF interference and malfunctioning N2 devices, along with other factors, contribute to time-out, data loss, and associated errors These issues compound exponentially as the physical downstream Bus grows in size and age JCI Engineering Guidelines ◦ N30 – 50 N2 devices ◦ NCM – 100 N2 devices 21 © 2011 The S4 Group, Inc.
- 22. The N2 bus is limited to 9600 baud half-duplex ◦ This can’t be changed! Split a single large N2 Bus into multiple segments ◦ Each segment is brought into a single N2 Router on separate downstream ports ◦ The new configuration will continue to look and behave like a single N2 Bus to any upstream supervisory controllers ◦ This is all achieved without the need to implement any new logic in the supervisory controller or extensive rewiring. Split a single large N2 Bus into multiple segments ◦ Each segment is served with its own S4 Open Appliance ◦ From the point of view of the supervisory equipment there are now 2 separate N2 buses ◦ At the field level, communications are running much more smoothly and efficiently. 22 © 2011 The S4 Group, Inc.
- 23. Currently, all points on all devices are discovered on the downstream legacy network(s) and published as a list of points on one BACnet device A future enhancement will enable the router to discover N2 devices and publish them as individual BACnet devices – our OPC router already has this functionality BBMD Support 23 © 2011 The S4 Group, Inc.
- 24. BACnet or OPC (ETHERNET) Downstream N2 Connection Via Advantech ADAM Ethernet Serial Server Replacement Workstation Ethernet Network BACnet or OPC (ETHERNET) N2 Protocol (ETHERNET) (ETHERNET) N2 Protocol ADAM Serial Server S4 Open N2 Protocol Appliance (RS-485) VMA Device DX-9100 TEC2145-2 MS-MIG3120 TCS Basys (N2B (System 91 (N2 Open (Metasys (VND Device) Protocol) Protocol) Protocol) Integrator) 24 © 2011 The S4 Group, Inc.
- 25. Example Integrations Using S4 Open Appliances 25
- 26. Problem ◦ A potential customer has a small, one story, office building with 12 units. ◦ The building has a total of 10 N2 devices ◦ The N30 supervisory controller is no longer functioning, all N2 devices are in default operation mode. Solution ◦ Replace N30 with BACnet-N2 Router 16 ◦ Install new BACnet based HMI 26 © 2011 The S4 Group, Inc.
- 27. Problem ◦ A school district needs to keep track of energy usage across a diverse range of buildings ◦ A sizable percentage of the buildings are Metasys based ◦ The district already uses an OPC- based trending solution for central reporting for some of the buildings Solution ◦ Install an appropriately sized OPC- N2 Router in each building ◦ Connect each OPC-N2 Router to the central office via existing IT infrastructure 27 © 2011 The S4 Group, Inc.
- 28. Problem ◦ A potential customer wants to migrate from Metasys to a purely BACnet-based system ◦ Budget does not allow for a complete upgrade to take place all at once Solution ◦ Install one appropriately BACnet-N2 Router for each legacy supervisory controller ◦ Install a new BACnet-based HMI, all data from the legacy Metasys installation is immediately available to the new system ◦ Leave the legacy controller in place and allow it to continue communicating via the upstream interface on the BACnet-N2 Router ◦ Run a parallel BACnet field bus and replace N2 controllers with BACnet controllers as budget allows or as need arises 28 © 2011 The S4 Group, Inc.
- 29. Solutions using a Lego®-like architecture with plug-in modules Product family includes N2 Switch, OPC-N2 Router, BACnet- N2 Router Upstream Interfaces Ethernet RS-232 RS-485 BACnet OPC Metasys N2® SNMP XML/oBIX … Auto Configure Scheduler JIT Compilers Administration Virtual Universal Devices Core Services Points Routing Address Management Object Management Metasys® N2 OPC BACnet MODbus DALI Siemens P1 … Ethernet RS-232 RS-485 Ethernet Serial Server Downstream Interfaces 29 © 2011 The S4 Group, Inc.
- 30. Downstream Protocols ◦ Siemens P1 ◦ Barber-Colman ◦ MODbus ◦ EnOcean ◦ … Upstream Protocols ◦ SNMP ◦ XML / oBIX ◦ … Built in logic to replace supervisory controllers ◦ Data Distribution Daemon Support for more serial server brands Wherever the market takes us 30 © 2011 The S4 Group, Inc.
- 31. 31 © 2011 The S4 Group, Inc.
Editor's Notes
- #3: In 2008 the global installed systems market reached an impressive value of US$ 12 billion. Once again, America is the largest market in this category with 40 per cent and Europe accounting for 37 per cent, while Asia and the Middle East collectively account for 23 per cent. Third parties enjoy around 45 per cent of the total installed systems sales market share. The top 3 players, Johnson Controls, Siemens and Honeywell account for 37 per cent of the installed market.
- #11: A slide that talks about the generic Hardware Device Type Profiles, the Application Specific Device Type Profiles, and the ability to drill down into devices that the system does not find in our Device Types Catalog and probe them for points would be good. It should include the discussion about the limitation on VND and MIG devices and how we get around these issues. We should also touch on Point Multiplexor applications and the fact that these are unique to each Metasys job.