The Espen Pro is a DIN-rail mounted device designed for reliable local control and monitoring Battery Energy Storage Systems (BESS). This manual describes the installation of Fever Espen Pro (referred to as “the gateway”) for Modbus TCP communication with an industrial Battery Energy Storage System (BESS) and power meter.

The installation consists of the installation of the gateway, basic network configuration, and the required power-on that will establish the Modbus TCP data acquisition from the BESS and power meter.

Installation Requirements

Component	Description	Supplied by Fever
Gateway	Fever Espen Pro	Yes
Power Supply	DIN-rail mounted 24V DC power supply	Yes
Network Cable	Standard Ethernet cable (RJ-45)	No
Power Meter	Acuvim meter II or Camille Bauer Aplus	Talk with Fever
Tool	Small flat-head screwdriver (for power terminal)	No

Installation guide

This sections describe the three step installation process of Fever Espen Pro.

1. Fever Espen Pro installation

1.1 DIN Rail Mounting

The Gateway is designed for DIN-rail mounting.

Align the Gateway's DIN-rail clip with the edge of the standard DIN rail.
Press the Gateway firmly against the rail and push down until the clip snaps securely into place.
Ensure the Gateway is stable and cannot move easily along or off the rail.

1.2 Power Connection

The Gateway requires a DC power input between 9V and 36V. A DIN-rail mounted 24V DC power supply is supplied by Fever.

Locate the 2-pin screw terminal block for power input on the Gateway.
Using a small flat-head screwdriver, loosen the screws on the terminal block.
Connect the positive (+) wire from the power supply to the 'V+' terminal.
Connect the negative/ground (-) wire from the power supply to the 'GND' terminal.
Tighten the screws securely to ensure good contact. Do not over-tighten.

2. Network Configuration

The ETH0 port is used as the primary network interface to reach the Internet. The 4G antenna should be installed in the B-SMA connector in order to provide optimal connectivity to the available 4G wireless network so it can act as the secondary network interface to reach the Internet. ETH0 is additionally used to connect the BESS and the power meter through the connected network.

2.1 Ethernet Connection

Identify the ETH0 port on the Gateway.
Connect one end of the Ethernet cable (RJ-45) to the ETH0 port.
Connect the other end of the Ethernet cable to a LAN-enabled switch or router with DHCP so Espen Pro can obtain an IP address and access the internet.
Ensure that the IP address scheme of the Gateway, BESS, and power meter are compatible and reachable within the connected LAN.
Optional, if for security reasons or constrained network setups where Espen Pro and both the BESS and power meter cannot be on the same LAN, ETH1 can be used (in addition to ETH0) to connect directly to the BESS and/or power meter.

2.2 4G Connection

Identify the B-SMA port on the Gateway.
Connect the antenna directly to the B-SMA port.

3. Initial Power-On

3.1 Applying Power

Once the power and network cables are securely connected, apply power to the DC power supply unit.
Observe the power LED indicators on the Gateway. The device should begin its boot sequence.

3.2 Verification

Power LED: Should illuminate and blink.
ETH0 Link/Activity LEDs:
- Link LED (Solid): Indicates a physical connection to the network.
- Activity LED (Flashing): Indicates network traffic.

Additional: Integration Configuration

After completing Step 1-3 of the installation manual and the network is connected via ETH0, the integration configuration has to follow the following requirements on the network:

Component	Network Requirement
Gateway	Must have an accessible IP address on the network.
BESS	Must have a known, static IP address and Modbus Unit ID (if used).
Power Meter	Must have a known, static IP address and Modbus Unit ID (if used).