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BACnet and the NexSys® -Before you order, read this.

Are you ready for a BACnet controller?

Pon Farr-Lo-cropped

The NexSys® comes from the factory ready to connect via BACnet IP standard. (MS/TP requires a secondary device explained below). The current config allows for up to four controllers (8 cooling towers or 16 boilers) on the same network hub.

Method 1:

The user configures the IP address of the NexSys® on the local Ethernet network to produce a static IP. The NexSys® is preconfigured to “see” the BACnet destination server at port 4000001. This means that the NexSys® does NOT have internal objects that can be discovered. On the BACnet Server, the local integrator will need to create the objects they want to see at a specific BACnet location and by a specific type (They can use our parameter name as well) that they are interested in seeing using our table:

Destination Bacnet ID Destination Object ID type Parameter
400001 1295 Analog Value S1Con Tower 1

In the example, the site would route traffic to their BACnet server at 400001 (Or multicast the 400001 traffic to their actual Server port). An Analog value object would need to be created in their BACnet Server at ID 1295 by the integrator. The NexSys® would continually tunnel to and update that object directly (Every 5 seconds). That object, residing on the local server (not the NexSys®) could be discovered or viewed by the rest of the BACnet system. Again, the NexSys® can be discovered as a device, but no BACnet objects actually reside in the NexSys® and cannot be polled from the NexSys®. The complete “Factory settings” of NexSys® Parameter, destination ID and Object Type matrix is at the end of this document.

20151203_160807The site can access the BACnet menu in the NexSys and change the destination ID (location of the Bacnet Server where object resides) or Object ID (Parameter location of object within Server) information for each parameter to allow for previosly used ID’s or sequential numbering for convenience.

The communication from the NexSys® to the BACnet system is a one-way street. Any Cooling/Boiler/chemical feed programming changes must be made through an HTML capable browser over the local Ethernet by going to the static Ethernet address of the controller. If the Service treatment company wishes to have access to the data log or use an automated external monitoring service (Like E-service) additional port forwarding needs to be enabled by the local IT department.

Method 2:

The site may use a preconfigured DAC-633e from Lakewood as the BACNET IP server. This unit does have discoverable objects in it and can work with up to four NexSys® controllers at the same time. In order to setup the DAC-633 for local use, at the time of order, Lakewood will need:

Local internal IP the unit will sit at, the gateway IP, the Subnet Mask and the DNS server IP. Also, ports 400000 and 400001 must be clear of all

Traffic on the local system. The DAC-633e has the BACnet object pre-built and can be discovered by the local BACnet IP system.

Method 2A:

The DAC-633e also has and built in Net1 output for MS/TP. This means it can be used as a “translator” of sorts to go from the NexSys® output of BACnet IP to MS/TP via the net 1 output. The DAC633e and the NexSys® still require local Ethernet support to interact, but it can be a local switch or network. The IP info will be needed before shipment. If the site wants a specific Device MAC address to be on the DAC-633 (The default is 400001) , please provide that before ordering.

Method 3 REMOTE communications via 3G and BACnet:

Using a NexSys® with the EZWeb wireless 3G system allows the Water Treatment service provider (and their customer) to access the NexSys® via the internet at a static IP using an HTML 5 capable browser, but doesn’t require the local IT to integrate the controller onto their local Ethernet. The DAC-633e and the NexSys® communicate over the EZWeb wireless 3G. The local site ties their BACnet system into the Net1 MS/TP output of the DAC-633e (in this method, the Ethernet must remain separate from the local Ethernet network/ISP). This provides a secure “bridge” interface between the NexSys® and the local BACnet system, since the only port forwarding allowed from the outside world is directly to the NexSys® and none of the BACnet ports are exposed. This means the local IT department is not involved and system interface issues are alleviated entirely. If the site wants a specific Device MAC address to be on the DAC-633 (The default is 400001), please provide that before ordering.

Below is a full list of the Destination ID and objects the integrators will need to create (Use only the ones that apply). Please understand that this process will take time and effort on your part to integrate and every site is different. We can create customized projects at the factory if we know their destination BACnet Server ID ahead of time (shown as 400001 in the list). The column one color change indicates when one controller ends and another begins (Assuming duel tower controllers)

BACnet Output Destination Bacnet ID Destination Object ID type Parameter Range Unit Note
BNS1CondA 400001 1295 Analog Value S1Con Tower 1 0-15,000 umhos
BNS2CondA 400001 1296 Analog Value S2Con Tower 1 MU 0-15,000 umhos
BNS3CondA 400001 1297 Analog Value S3Con Tower 2 0-15,000 umhos
BNS4CondA 400001 1298 Analog Value S4Con  Tower 2 MU 0-15,000 umhos
BNS1pHA 400001 1299 Analog Value nvipH_f1 Tower 1 pH 0.0-14.0 pH
BNS2pHA 400001 1300 Analog Value nvipH_f123 Tower 2 pH 0.0-14.0 pH
BNS1ORPA 400001 1301 Analog Value ORP1conv Tower 1 ORP -1000 to 1000 mV
BNS2ORPA 400001 1302 Analog Value ORP2conv Tower 2 ORP -1000 to 1000 mV
BNS1420A 400001 1303 Analog Value nviValue12[0] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS2420A 400001 1304 Analog Value nviValue12[1] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS3420A 400001 1305 Analog Value nviValue12[2] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS4420A 400001 1306 Analog Value nviValue12[3] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS5420A 400001 1307 Analog Value nviValue123[0] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS6420A 400001 1308 Analog Value nviValue123[1] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS7420A 400001 1309 Analog Value nviValue123[2] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS8420A 400001 1310 Analog Value nviValue123[3] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNWMT1A 400001 1311 Analog Value nviFlowTotal[0]) Water meter 1 0-10,000,000 G or L Gallons or liters, cumulative count
BNWMT2A 400001 1312 Analog Value nviFlowTotal[1])Water meter 2 0-10,000,000 G or L Gallons or liters, cumulative count
BNRly1A 400001 1313 Analog Value nvi01RelayStatus 0=Off 4=On
BNRly2A 400001 1314 Analog Value nvi02RelayStatus 0=Off 4=On
BNRly3A 400001 1315 Analog Value nvi03RelayStatus 0=Off 4=On
BNRly4A 400001 1316 Analog Value nvi04RelayStatus 0=Off 4=On
BNRly5A 400001 1317 Analog Value nvi05RelayStatus 0=Off 4=On
BNRly6A 400001 1318 Analog Value nvi06RelayStatus 0=Off 4=On
BNRly7A 400001 1319 Analog Value nvi07RelayStatus 0=Off 4=On
BNRly8A 400001 1320 Analog Value nvi08RelayStatus 0=Off 4=On
BNRly9A 400001 1321 Analog Value nvi09RelayStatus 0=Off 4=On
BNRly10A 400001 1322 Analog Value nvi10RelayStatus 0=Off 4=On
BNWMT3A 400001 1323 Analog Value nviFlowTotal[2])Water meter 3 0-10,000,000 G or L Gallons or liters, cumulative count
BNWMT4A 400001 1324 Analog Value nviFlowTotal[3]) Water Meter 4 0-10,000,000 G or L Gallons or liters, cumulative count
BNflow1A 400001 1337 Analog Value nviSNContact[2]) Flow switch 1 0=Off 4=On
BNflow2A 400001 1338 Analog Value nviSNContact[3]) Flow switch 2 0=Off 4=On
BNflow3A 400001 1339 Analog Value nviContact1[2]) Flow Switch 3 0=Off 4=On
BNflow4A 400001 1340 Analog Value nviContact1[3]) Flow Switch 4 0=Off 4=On
BNS1CondB 400001 1341 Analog Value S1Con Tower 1 0-15,000 umhos
BNS2CondB 400001 1342 Analog Value S2Con Tower 1 MU 0-15,000 umhos
BNS3CondB 400001 1343 Analog Value S3Con Tower 2 0-15,000 umhos
BNS4CondB 400001 1344 Analog Value S4Con  Tower 2 MU 0-15,000 umhos
BNS1pHB 400001 1345 Analog Value nvipH_f1 Tower 1 pH 0.0-14.0 pH
BNS2pHB 400001 1346 Analog Value nvipH_f123 Tower 2 pH 0.0-14.0 pH
BNS1ORPB 400001 1347 Analog Value ORP1conv Tower 1 ORP -1000 to 1000 mV
BNS2ORPB 400001 1348 Analog Value ORP2conv Tower 2 ORP -1000 to 1000 mV
BNS1420B 400001 1349 Analog Value nviValue12[0] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS2420B 400001 1350 Analog Value nviValue12[1] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS3420B 400001 1351 Analog Value nviValue12[2] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS4420B 400001 1352 Analog Value nviValue12[3] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS5420B 400001 1353 Analog Value nviValue123[0] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS6420B 400001 1354 Analog Value nviValue123[1] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS7420B 400001 1355 Analog Value nviValue123[2] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS8420B 400001 1356 Analog Value nviValue123[3] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNWMT1B 400001 1357 Analog Value nviFlowTotal[0]) Water meter 1 0-10,000,000 G or L Gallons or liters, cumulative count
BNWMT2B 400001 1358 Analog Value nviFlowTotal[1])Water meter 2 0-10,000,000 G or L Gallons or liters, cumulative count
BNRly1B 400001 1359 Analog Value nvi01RelayStatus 0=Off 4=On
BNRly2B 400001 1360 Analog Value nvi02RelayStatus 0=Off 4=On
BNRly3B 400001 1361 Analog Value nvi03RelayStatus 0=Off 4=On
BNRly4B 400001 1362 Analog Value nvi04RelayStatus 0=Off 4=On
BNRly5B 400001 1363 Analog Value nvi05RelayStatus 0=Off 4=On
BNRly6B 400001 1364 Analog Value nvi06RelayStatus 0=Off 4=On
BNRly7B 400001 1365 Analog Value nvi07RelayStatus 0=Off 4=On
BNRly8B 400001 1366 Analog Value nvi08RelayStatus 0=Off 4=On
BNRly9B 400001 1367 Analog Value nvi09RelayStatus 0=Off 4=On
BNRly10B 400001 1368 Analog Value nvi10RelayStatus 0=Off 4=On
BNWMT3B 400001 1369 Analog Value nviFlowTotal[2])Water meter 3 0-10,000,000 G or L Gallons or liters, cumulative count
BNWMT4B 400001 1370 Analog Value nviFlowTotal[3]) Water Meter 4 0-10,000,000 G or L Gallons or liters, cumulative count
BNflow1B 400001 1371 Analog Value nviSNContact[2]) Flow switch 1 0=Off 4=On
BNflow2B 400001 1372 Analog Value nviSNContact[3]) Flow switch 2 0=Off 4=On
BNflow3B 400001 1373 Analog Value nviContact1[2]) Flow Switch 3 0=Off 4=On
BNflow4B 400001 1374 Analog Value nviContact1[3]) Flow Switch 4 0=Off 4=On
BNS1CondC 400001 1375 Analog Value S1Con Tower 1 0-15,000 umhos
BNS2CondC 400001 1376 Analog Value S2Con Tower 1 MU 0-15,000 umhos
BNS3CondC 400001 1377 Analog Value S3Con Tower 2 0-15,000 umhos
BNS4CondC 400001 1378 Analog Value S4Con  Tower 2 MU 0-15,000 umhos
BNS1pHC 400001 1379 Analog Value nvipH_f1 Tower 1 pH 0.0-14.0 pH
BNS2pHC 400001 1380 Analog Value nvipH_f123 Tower 2 pH 0.0-14.0 pH
BNS1ORPC 400001 1381 Analog Value ORP1conv Tower 1 ORP -1000 to 1000 mV
BNS2ORPC 400001 1382 Analog Value ORP2conv Tower 2 ORP -1000 to 1000 mV
BNS1420C 400001 1383 Analog Value nviValue12[0] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS2420C 400001 1384 Analog Value nviValue12[1] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS3420C 400001 1385 Analog Value nviValue12[2] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS4420C 400001 1386 Analog Value nviValue12[3] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS5420C 400001 1387 Analog Value nviValue123[0] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS6420C 400001 1388 Analog Value nviValue123[1] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS7420C 400001 1389 Analog Value nviValue123[2] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS8420C 400001 1390 Analog Value nviValue123[3] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNWMT1C 400001 1391 Analog Value nviFlowTotal[0]) Water meter 1 0-10,000,000 G or L Gallons or liters, cumulative count
BNWMT2C 400001 1392 Analog Value nviFlowTotal[1])Water meter 2 0-10,000,000 G or L Gallons or liters, cumulative count
BNRly1C 400001 1393 Analog Value nvi01RelayStatus 0=Off 4=On
BNRly2C 400001 1394 Analog Value nvi02RelayStatus 0=Off 4=On
BNRly3C 400001 1395 Analog Value nvi03RelayStatus 0=Off 4=On
BNRly4C 400001 1396 Analog Value nvi04RelayStatus 0=Off 4=On
BNRly5C 400001 1397 Analog Value nvi05RelayStatus 0=Off 4=On
BNRly6C 400001 1398 Analog Value nvi06RelayStatus 0=Off 4=On
BNRly7C 400001 1399 Analog Value nvi07RelayStatus 0=Off 4=On
BNRly8C 400001 1400 Analog Value nvi08RelayStatus 0=Off 4=On
BNRly9C 400001 1401 Analog Value nvi09RelayStatus 0=Off 4=On
BNRly10C 400001 1402 Analog Value nvi10RelayStatus 0=Off 4=On
BNWMT3C 400001 1403 Analog Value nviFlowTotal[2])Water meter 3 0-10,000,000 G or L Gallons or liters, cumulative count
BNWMT4C 400001 1404 Analog Value nviFlowTotal[3]) Water Meter 4 0-10,000,000 G or L Gallons or liters, cumulative count
BNflow1C 400001 1405 Analog Value nviSNContact[2]) Flow switch 1 0=Off 4=On
BNflow2C 400001 1406 Analog Value nviSNContact[3]) Flow switch 2 0=Off 4=On
BNflow3C 400001 1407 Analog Value nviContact1[2]) Flow Switch 3 0=Off 4=On
BNflow4C 400001 1408 Analog Value nviContact1[3]) Flow Switch 4 0=Off 4=On
BNS1CondD 400001 1409 Analog Value S1Con Tower 1 0-15,000 umhos
BNS2CondD 400001 1410 Analog Value S2Con Tower 1 MU 0-15,000 umhos
BNS3CondD 400001 1411 Analog Value S3Con Tower 2 0-15,000 umhos
BNS4CondD 400001 1412 Analog Value S4Con  Tower 2 MU 0-15,000 umhos
BNS1pHD 400001 1413 Analog Value nvipH_f1 Tower 1 pH 0.0-14.0 pH
BNS2pHD 400001 1414 Analog Value nvipH_f123 Tower 2 pH 0.0-14.0 pH
BNS1ORPD 400001 1415 Analog Value ORP1conv Tower 1 ORP -1000 to 1000 mV
BNS2ORPD 400001 1416 Analog Value ORP2conv Tower 2 ORP -1000 to 1000 mV
BNS1420D 400001 1417 Analog Value nviValue12[0] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS2420D 400001 1418 Analog Value nviValue12[1] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS3420D 400001 1419 Analog Value nviValue12[2] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS4420D 400001 1420 Analog Value nviValue12[3] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS5420D 400001 1421 Analog Value nviValue123[0] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS6420D 400001 1422 Analog Value nviValue123[1] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS7420D 400001 1423 Analog Value nviValue123[2] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNS8420D 400001 1424 Analog Value nviValue123[3] -9999.99 to 9999.99 Var Various 4-20 mA inputs and user configurable ranges on site
BNWMT1D 400001 1425 Analog Value nviFlowTotal[0]) Water meter 1 0-10,000,000 G or L Gallons or liters, cumulative count
BNWMT2D 400001 1426 Analog Value nviFlowTotal[1])Water meter 2 0-10,000,000 G or L Gallons or liters, cumulative count
BNRly1D 400001 1427 Analog Value nvi01RelayStatus 0=Off 4=On
BNRly2D 400001 1428 Analog Value nvi02RelayStatus 0=Off 4=On
BNRly3D 400001 1429 Analog Value nvi03RelayStatus 0=Off 4=On
BNRly4D 400001 1430 Analog Value nvi04RelayStatus 0=Off 4=On
BNRly5D 400001 1431 Analog Value nvi05RelayStatus 0=Off 4=On
BNRly6D 400001 1432 Analog Value nvi06RelayStatus 0=Off 4=On
BNRly7D 400001 1433 Analog Value nvi07RelayStatus 0=Off 4=On
BNRly8D 400001 1434 Analog Value nvi08RelayStatus 0=Off 4=On
BNRly9D 400001 1435 Analog Value nvi09RelayStatus 0=Off 4=On
BNRly10D 400001 1436 Analog Value nvi10RelayStatus 0=Off 4=On
BNWMT3D 400001 1437 Analog Value nviFlowTotal[2])Water meter 3 0-10,000,000 G or L Gallons or liters, cumulative count
BNWMT4D 400001 1438 Analog Value nviFlowTotal[3]) Water Meter 4 0-10,000,000 G or L Gallons or liters, cumulative count
BNflow1D 400001 1439 Analog Value nviSNContact[2]) Flow switch 1 0=Off 4=On
BNflow2D 400001 1440 Analog Value nviSNContact[3]) Flow switch 2 0=Off 4=On
BNflow3D 400001 1441 Analog Value nviContact1[2]) Flow Switch 3 0=Off 4=On
BNflow4D 400001 1442 Analog Value nviContact1[3]) Flow Switch 4 0=Off 4=On

 

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