User Manual 6 < back to the table of contents > 3.3 Installation 3.3.1 Power Supply The COM-Module can be operated either via Power over Ethernet (PoE) or with 24 VDC. This chapter describes both connection options. When powered via PoE only, the I/Os cannot be used! 3.3.2 24 VDC The COM-Module can be powered with 24 VDC via the 24 V and 0 V pins. To connect the power supply, a 16-pin or 1 x 8-pin connector is required. The positive pole must be connected to one of the two 24 V pins, and the same applies to the negative pole, which must be connected to one of the two 0 V pins in order to supply the module with 24 VDC. DIO 0-7 0 1 2 3 4 5 6 7 24V 24V 0V 0V 0V 0V DATA A RS0-P Data B RS0-N Modulversorgung + IOs (0 V für DI, 24 V für DO) Supply module + IOs (0 V for DI, 24 V for DO) RS485 Half-Duplex Figure 4: Pin assignment for the 16-pin connector; the power supply for 24 VDC is marked in red. Table 2 Wiring structure for the 16-pin connector: Conductor construction 8-pole terminal Min. Max. Stripping length solid / multi-wired 0,2 mm² / AWG 24 1,5 mm² / AWG 16 8 – 10 mm / 0.31 – 0.39 in stranded with ferrule 0,25 mm² 0,75 mm² 8 – 10 mm / 0.31 – 0.39 in 3.3.3 Power over Ethernet (PoE) The COM-Module can also be powered via Power over Ethernet (PoE). To supply power via PoE, a PoE-capable IT infrastructure (such as a switch, router, etc.) or a suitable PoE injector is required. Only the Eth0 port supports PoE. See Chapter 3.2 Overview COM-Module. Note! The power supply can be provided either via an 8- or 16-pin connector with 24 V DC, or via a PoE-capable infrastructure. Power supply via PoE is only possible through the Eth0 Ethernet port. When powered via PoE, the I/Os are not available! 3.3.4 Ethernet ports The COM-Module has two physical Ethernet ports, with Eth0 being used for power supply via PoE. Eth0 is also used to establish communication with the COM-Module. For more information, please refer to Chapter 5.1 Accessing the Web User Interface. The second Ethernet port (Eth1) is currently not available to the user. Activation is planned for future releases. Info! Currently, only the Eth0 interface is available! 3.4 User Button 3.4.1 Reset to Factory Settings The user button can be used to reset the device to factory settings. To do this, press and hold the user button for at least five seconds during startup. After that, the COM-Module will be reset to factory settings. However, measurement data stored in the database (if previously enabled) will remain intact. For more information on the database, refer to Chapter 12.4.4 Database Configuration. After resetting to factory settings, all usernames and passwords will also be deleted. You can log in again using the following default credentials: Benutzername: admin Passwort: admin Info! When resetting to factory settings, all configuration data will be deleted. Measured values in the database will be retained if data logging was previously enabled.
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