AB 1794 - AENT Series B FLEX I/O EtherNet/IP Adapter

AB 1794 - AENT Series B FLEX I/O EtherNet/IP Adapter

Installation requirements: The equipment is suitable for use in industrial environments of pollution class 2, overvoltage category II, at altitudes up to 2000 metres above sea level, and is classified as Group 1, Class A industrial equipment. It is to be installed in a suitably designed enclosure that is flame retardant and the interior can only be accessed by means of tools.

Installation steps

Mounting to DIN rail: Hook the rear of the adapter onto the top of the 35 x 7.5 mm DIN rail, rotate and press it against the rail, if not locked it can be done with a tool.

Replacing the adapter in an existing system: Remove the relevant connections in turn, take care to align the slots when installing the new adapter, and reconnect the wiring once the installation is complete.

Wiring Methods

Network cable connection: Connect the Ethernet network cable to the RJ45 connector on the bottom of the adapter, it is recommended to connect it through a 100 MB full duplex switch.

Power Connection: 24V common is connected to the left terminal B of the upper connector, +24V dc input power is connected to the left terminal C of the lower connector, and power can be supplied to the subsequent modules through connectors D and E. No more than 2 wires should be connected to a single terminal, and the terminal screws should be torqued to 0.8 Nm (7 lb - in) when connecting.

Network Address Settings: The adapter is shipped from the factory with the jog wheel switch set to 999 and DHCP enabled, allowing you to obtain an IP address using the jog wheel switches (001 - 254), a DHCP server, or from non-volatile memory. A switch value of 888 resets all configuration parameters to factory settings.

Indicator Status Interpretation: 1794 - The AENT adapter has three two-colour indicators on the front panel, the Module Status Indicator, the Network Status Indicator, and the Link Status Indicator, with different blinking or always-on statuses representing different operating states.

Environmental specifications: Operating temperature 0 - 55°C (32 - 131°F), non-operating temperature - 40 - 85°C (-40 - 185°F), relative humidity 5 - 95% non-condensing, able to withstand a certain degree of vibration and shock, in the electromagnetic compatibility requirements.

Specification

Electrical Parameters

Power Requirements: To comply with the CE Low Voltage Directive (LVD), the unit needs to be powered by a Safety Extra Low Voltage (SELV) or Protection Extra Low Voltage (PELV) compliant power supply. The input voltage is rated at 24V dc nom, and the input voltage range is 19.2-31.2V dc (including 5% AC ripple), which can adapt to a certain range of voltage fluctuations and ensure stable operation under different power conditions.

Communication rate: It supports 10/100 Mbps communication rate, which can be negotiated automatically according to the network environment and equipment requirements to meet the data transmission speed requirements in industrial automation scenarios and ensure fast and stable data transmission.

Current and Power: The maximum output current of Flexbus is 640 mA, which can provide stable power support for the connected I/O modules. In terms of power consumption, the maximum is 550 mA and 440 mA at 24V dc; the power dissipation is 7.3 W at 19.2V dc and the heat dissipation is 24.9 BTU/hr at 19.2V dc, which reflects the energy consumption and heat dissipation of the device during operation.

Isolation Voltage: 50V continuous isolation voltage, which belongs to the basic insulation type and has been tested by 1000V ac for 60s (between power supply and Flexbus, EtherNet), effectively isolating different circuits and enhancing the safety and anti-interference ability of the equipment.

Mechanical Parameters

I/O capacity: I/O capacity is 8 modules, which specifies the upper limit of the number of FLEX I/O modules that can be connected to the adapter, and the number of I/O points and the scale of equipment connection should be planned accordingly in the system design.

Connector Type: The Ethernet connector adopts the RJ45 Cat. 5 standard interface, which is widely used for Ethernet connection with good versatility and stability, and is convenient to connect with other network devices.

Terminal Screw Torque: The terminal screw torque is required to be 0.8 Nm (7 lb - in), which ensures firm wiring and avoids problems such as poor contact and unstable signal transmission caused by loose screws.

Wire Specifications: Power conductors are 0.34 - 2.5 mm² (22 - 12 AWG) stranded copper wire rated at 75°C (167°F) or higher, with a maximum insulation thickness of 1.2 mm (3/64 in.) to meet electrical performance and safety requirements. Conductors are classified as Class 1 for power ports and Class 2 for communication ports to provide guidance for wiring planning.

Environmental Parameters

Temperature range: Operating temperature range is 0 - 55°C (32 - 131°F), non-operating temperature range is - 40 - 85°C (-40 - 185°F), can adapt to a variety of industrial environment temperature changes, in different seasons and working scenarios to maintain stable performance.