Vesda VHX-1400 Metal Box HLI Modbus Type 1
Vesda VHX-1400 Metal Box HLI Modbus Type 1The VESDA Wall-mounted ModBus High Level Interface HLI links your VESDAnet with PC software monitoring tools Building Management Systems BMSs or Fire Alarm Control Panels FACPs otherwise known as host that support the ModBus protocol. There are two models availableWall-mounted ModBus HLI Type 1 VHX-1400 which echoes each character received on the RS232 link back to the host together with reply message.Wall-mounted ModBus HLI Type 2 VHX-1410 which has the echoing function disabled.One ModBus HLI is used to interface to a VESDAnet. Modbus HLI supports up to a maximum of 40 VESDA detectors on a VESDAnet.The Modbus HLI supports VESDAnet detector zone numbers between 1 to 200. The Modbus HLI divides up the address range into to 7 logical networks. For example the first 30 addresses are considered in network 1 addresses between 31 to 60 are in network 2 and so on.Information available using the VESDA Modbus HLIDetector Type VLP VLS VLC VLF.Fault Status Head Battery and Mains Flow Scanner2 .Detector Alarm State Alert Action Fire.Smoke LevelSmoke Bargraph LevelDetector Alarm thresholds Alert Action FireReset DetectorIsolate DetectorStart Scan Test2