PL-TREE-COM Principles 1. The Prolon PL-TREE-COM is a wireless communication device that transmits and receives Modbus RS485 data over radio frequency communication (2.4GHz) 2. Its goal is to wirelessly extend, complement, or replace standard RS485 wired daisy-chains, where a physical connection would be impractical or uneconomical.
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Figure 4 6c) The PL-TREE-COM radio wave pattern is directional, meaning the signal beam, while able to radiate everywhere, will travel farther in one specific direction. The built-in antenna is aligned with its front cover (face with the lights and dipswitches). In order to achieve maximum range, or communicate through complex building structure, both PL-TREE COM modules commu- nicating together should have their faceplates facing each other.
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RS485 bus, but the location of the node is not important The jumper to activate the resistors are identified on the PL-TREE-COM via the front label. The resistors are activated when the jumper covers both header pins for a given resistor.
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10. Firmware compatibility The PL-TREE-COM is designed to work with same generation products (v.7.5.0 or later), but can be retrofitted into existing systems, provided that the controllers using TREE-COM modules are compatible. This is especially important with Modbus ''Master'' devices, that must comply with the TREE-COM's specific communication caracteristics.
PL-TREE-COM installation scenarios Single-Zone Unit Controllers with Digital Wall Sensor The RTUS, HPS or FCU controllers can be connected to their respective communicating digital wall sensor, using the PL-TREE-COM device. **Important** A PL-RS wall sensor CANNOT be connected using a PL-TREE-COM (M2000 only).
The PL-VC2000 or C1050 VAV controllers can be connected to a communicating digital wall sensor (T1000, T500,T200) using a PL-TREE- COM. (Figure 9) 1. The PL-TREE-COM connected to the communicating wall sensor NEEDS to be set as the "ROOT". (INT port) 2. The PL-TREE-COM connected to the VAV controller must be set as the "LEAF". (INT port) 3.
1. Each controller must have its own dedicated PL-TREE-COM device 2. The PL-TREE-COM connected to each Follower Controller must be in set as the "LEAF". (NET Port) 3. The PL-TREE-COM connected to the Master Controller must be set as the "ROOT". (NET Port) 4.
It is possible to create hybrid networks, where wireless communication supports and complements wired daisy-chains. In this situation, a PL-TREE-COM will be added to the daisy-chain to gap the link between the Master and all its Followers. (Figure 11) 1. The PL-TREE-COM on the M2000 Master's side must be connected in the NET port and be set as the "ROOT".
(wired/wireless - hybrid network) Example 2 A wired communication network can be spliced and re-united using TREE-COM modules, regardless of their location within a Prolon network. (Figure 12) 1. The TREE-COM that is hardwired to the Modbus Master (PL-M2000-RTU) must be set in "ROOT" mode 2.
1. The PL-TREE-COM connected to the PL-NC2000 via the RS-485 OUT port must be set as the "ROOT". 2. The PL-TREE-COM connected to individual PL-M2000, or PL-C1050 via the INT communication port must be set as the "LEAF". 3. All PL-TREE-COM modules must have their dipswitches set for the same channel number.
Measuring signal quality with NFC 1. The incoming signal quality from a "ROOT" must be measured at a "LEAF" device, using the Prolon Focus app on a mobile device with NFC capabilities. 2. A measurement only becomes possible on a ''LEAF'' device, once it has established a connection with its "ROOT" module.
TREE- TREE-COM module. COM found. Tap OK to go back to the settings. Once on the settings page, hold your phone (back of the phone) close to the face of a powered-up PL-TREE-COM device. REV 7.5.1 / PL-INSTL-TREECOM-EN...
1. To scan the TREE-COM, 2. Tap on "Scan PL-TREE- 3. When ready to detect, 4. Once detected, a popup tap on the settings icon in COM". approach and hold the will show you the infor- the left bottom corner. back of the mobile device mation about the TREE- very near the powered up...
Low signal quality best practices (Focus PC only) A signal quality of 30% to 60% is considered low quality. To communicate succesfully with signals in this range, it is best to increase the number of retries in Focus (PC) to 10 or 20 attempts, so to reduce the likelyhood of failure. Here is the procedure: 1.
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No part of this document may be photocopied or reproduced by any means, or translated to another language without prior written consent of Prolon. All specifications are nominal and may change as design improvements are introduced. Prolon shall not be liable for damages resulting from misapplication or misuse of its products.
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