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PHOENIXCONTACT_MODBU(8) NUT Manual PHOENIXCONTACT_MODBU(8) NAME phoenixcontact_modbus - Driver for Phoenix Contact SYNOPSIS phoenixcontact_modbus -h phoenixcontact_modbus -a DEVICE_NAME [OPTIONS] Note This man page only documents the hardware-specific features of the phoenixcontact_modbus driver. For information about the core driver, see nutupsdrv(8). SUPPORTED HARDWARE This driver should support the PhoenixContact QUINT-UPS industrial DC UPS, model 2320461 and all compatible models. More information about this UPS can be found among Internet resources below. phoenixcontact_modbus uses the libmodbus project, for Modbus implementa- tion. HOW TO CONFIGURE THE UPS Note: this UPS and its manual refers to Low-Batt as "Shutdown Event". You need the "IFS-RS232-DATACABLE" to communicate with the UPS in Linux as the IFS-USB cable doesn't seem to be supported. FYI communication parame- ters are: 115200,E,8,1. You also need the UPS-CONF Windows software (free; download from their site), to configure the UPS signals and timers. 1. Run the UPS-CONF 2. Go to SettingsaTime Setting 3. Choose "state of charge shutdown delay" 4. Choose Remote starts PC-Shutdown in Mains and Battery mode 5. On the PC-Shutdown enter the maximum value (5 minutes) 6. On the PC-Restart delay enter the time you want the UPS to leave the output power off before restarting (e.g. 60 seconds), after mains power is restored. 7. On the UPS, turn the screw to the "PC-MODE" position Configuring the above way ensures that: * When power is lost, UPS constantly calculates remaining battery time * When remaining battery time is less than 5 minutes (PC-Shutdown set- ting), it will raise the "Shutdown" event (seen as LOW-BATT in NUT) * From that moment even if input power is restored, the UPS will cut the output power to its load after 5 minutes * When the input power is restored, the UPS will restore output power af- ter 60 seconds (PC-RESTART delay setting). Meaning of settings: * PC-Shutdown: How long before output cutoff the UPS will raise the "shutdown event" signal. Max value for this is 5 minutes. So PC should be able to shutdown within 5 minutes. * PC-Restart: How long to delay output power after power is restored. Max is 60 seconds. EXTRA ARGUMENTS This driver doesn't support any optional settings. INSTALLATION This driver may be not built by default. You can build it by installing libmodbus and running configure --with-modbus=yes. You also need to give proper permissions on the local serial device file (/dev/ttyS0 for example) to allow the NUT user to access it. INSTANT COMMANDS This driver doesn't support any instant commands. CONFIGURABLE VARIABLES The following variables can be set in the NUT configuration as default.* values to override or monitor UPS behavior using the phoenixcontact_modbus driver. Note As of NUT v2.8.4, there is currently no support for run-time setting of these values (e.g. with upsrw(8)). Currently they are only considered once, during driver initialization. battery.energysave.delay=num Time after entering battery mode before PC shutdown signal is triggered by the UPS (in seconds). ups.timer.shutdown=num Time allowed for PC to shutdown (in seconds). Maximum is 300 seconds. ups.timer.start=num Duration for which output power remains turned off before rebooting the PC system back on (in seconds). ups.delay.start=num Delay before switching back to mains after power is restored (in sec- onds). The mains voltage must be within the threshold for this time, to initiate automatic PC restart. experimental.ups.mode.selector=num UPS operating mode. For example, 9 corresponds to PC-Mode (vendor-de- fined). experimental.battery.warning_soh=num Battery warning threshold for State of Health, in percent. input.voltage.low.critical=num Threshold voltage (in V) below which the UPS will switch to battery mode. input.voltage.high.critical=num Voltage threshold (in V) above which the UPS will consider mains power restored (see also below). AUTHORS * Spiros Ioannou <sivann@gmail.com> * Ricardo Rodriguez <rikyrod2001@gmail.com> * Ulfat Hasangarayev <ulfathasangarayev@gmail.com> SEE ALSO The core driver: nutupsdrv(8) Internet resources: * The NUT (Network UPS Tools) home page: https://www.networkupstools.org/ * libmodbus home page: http://libmodbus.org * More information about PhoenixContact QUINT-UPS industrial DC UPS, model 2320461 UPS series can be found here: https://www.phoenixcon- tact.com/online/portal/us?uri=pxc-oc-itemdetail:pid=2320461 Network UPS Tools 2.8.5. 08/04/2026 PHOENIXCONTACT_MODBU(8)
NAME | SYNOPSIS | SUPPORTED HARDWARE | HOW TO CONFIGURE THE UPS | EXTRA ARGUMENTS | INSTALLATION | INSTANT COMMANDS | CONFIGURABLE VARIABLES | AUTHORS | SEE ALSO
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