HM-GW-x User Manual

Introduction

The HM-GW, Multi-Channel, HART-IP® Gateway is designed to access your HART devices using Ethernet. This allows you to remotely view, configure, and troubleshoot your devices. The system comprises a Base module and can connect to up to 3 Expansion Modules, accommodating 4 to 16 HART channels.

System Diagram

The complete system consists of:

• A HART-IP Client running on a computer or mobile device with an Ethernet connection.
• The Ethernet network.
• The HM-GW (HART-IP Gateway).
• A 24Vdc power supply.
• Up to 16 HART devices (depending on the number of expansion modules installed).

[Diagram Description: A block diagram showing HART-IP Clients (Windows PC, Mobile) connecting via a NETWORK to the HM-GW HART-IP Gateway. The HM-GW is connected to a 24Vdc power supply and then to multiple HART FIELD DEVICES.]

Wiring Diagram

Screw terminals on the HM-GW provide interface connections for Ethernet (CAT5), +24Vdc power supply, and up to 16 HART device loops. Each HART loop must contain 250 ohms of resistance as per the HART specification. Polarity is not a concern for these connections.

Base Module Wiring (HM-GW-4)

The Base Module (HM-GW-4) features terminals for:

• GND: Ground connection.
• 24V: +24Vdc power supply input.
• C1-C4: Channels 1 through 4 for HART device connections.
• NC: No Connect (unused terminals).

It also includes an Ethernet Jack for network connectivity. A typical HART loop connects to the positive (+) and negative (-) terminals of a HART device, often via a loop resistor.

[Diagram Description: A schematic showing the HM-GW-4 module with terminals labeled GND, 24V, C1-C4, and NC. An Ethernet Jack is shown. A typical HART loop is depicted connecting to the module's channel terminals, including a loop resistor.]

Expansion Module Wiring (Typical)

Expansion Modules (e.g., HM-GW-8) provide additional HART channels. The terminals typically include:

• GND: Ground connection.
• 24V: +24Vdc power supply input.
• C1-C8: Channels 1 through 8 for HART device connections.
• NC: No Connect (unused terminals).

A typical HART loop connects to the positive (+) and negative (-) terminals of a HART device, often via a loop resistor.

[Diagram Description: A schematic showing an HM-GW-8 expansion module with terminals labeled GND, 24V, C1-C8, and NC. A typical HART loop is depicted connecting to the module's channel terminals, including a loop resistor.]

Connections

Base Module Ethernet Connection

Connect a standard CAT5 Ethernet cable with an RJ45 connector to the Ethernet Jack on the Base Module. This cable should be connected to an Ethernet Router or Switch within your network.

Base Module Power Connection

Connect the 24Vdc power supply to the GND and 24V terminals on the Base Module. The unit powers on automatically as soon as power is applied; there is no separate power switch.

Base Module and Expansion Module HART Connections

HART connections to the HM-GW can be made in one of two ways:

1. Across the loop load resistor (terminals A - B).
2. Across the HART transmitter terminals (terminals C - D).

[Diagram Description: A diagram illustrating HART connections. It shows a Loop Power Supply connected to a Loop Resistor (labeled A and B) and then to a HART Transmitter (labeled C and D). The connection points for the HM-GW are indicated as either across the resistor (A-B) or across the transmitter terminals (C-D).]

HM-GW Configuration via Web Interface

The HM-GW is designed to operate "out of the box" with default settings that are suitable for most systems. However, these settings can be modified using a web browser.

IP Address Assignment

Connect the HM-GW to your Ethernet network. By default, it uses DHCP to obtain an IP address. To access the web interface, you need to determine the IP address assigned to the HM-GW. A common method is to use a utility like Advanced IP Scanner, which is often included with the HM-GW.

Advanced IP Scanner Instructions

Install Advanced IP Scanner from its disk or download it from www.advanced-ip-scanner.com. Launch the application and press "Scan" to scan your network.

[Screenshot Description: An Advanced IP Scanner window is shown. It displays a list of network devices with columns for Status, Name, IP Address, Manufacturer, and MAC Address. The example highlights a device with the manufacturer "Texas Instruments" and an IP address of 192.168.0.101, noting this is likely the HM-GW.]

Browser Settings

Launch your web browser and enter the IP address obtained for the HM-GW. A login screen will appear.

[Screenshot Description: A web browser window showing a login page for the HM-GW. It has fields for Username (default 'admin') and Password.]

Password

The default password for the HM-GW is "root" (without quotation marks). This password can be changed by the user within the "General Settings" section of the web interface.

Settings Main Menu

After successfully logging in with the correct password, you will be presented with the main settings menu.

[Screenshot Description: A web browser interface showing the main menu of the HM-GW settings. Navigation tabs include Device List, General Settings, LAN Settings, Protocol Settings, and Diagnostics.]

Device Management

Device List

The Device List displays HART devices connected to the HM-GW and provides basic information about them. To view detailed measurement information, click on the specific device of interest.

[Screenshot Description: A web browser interface showing the 'Detected Devices' or 'Device List' section. It lists connected HART devices with their port status, address, manufacturer, and device tag. An example shows two devices: 'T-2001 PRE BURN' and 'RDO OUTLET PRESSURE 2'. A note indicates that devices are only visible if properly connected and configured with loop resistance.]

General Settings

Access this section to configure additional settings, including HART Tag settings for the HM-GW and system clock settings. You can also change the HM-GW's password from this page.

[Screenshot Description: A web browser interface showing the 'General Settings' page. It includes fields for Gateway Identification (Gateway Tag, Gateway Long Tag), System Time and Date (manual entry, PC clock, NTP server, Time Zone), and password change options (Current Password, New Password, Re-Type Password).]

LAN Settings

This section allows you to configure Ethernet-related settings. You can assign a static IP address to the HM-GW here, overriding the address assigned by the network's DHCP server.

[Screenshot Description: A web browser interface showing the 'LAN Settings' page. It displays the MAC Address and options for IP address assignment: 'Automatic address assignment(DHCP)' and 'Manual Address Assignment' with fields for IP Address, Subnet Mask, and Default Gateway.]

Protocol Settings

Configure settings related to HART-IP communication. This section also includes polling settings used for discovering HART devices connected to the HM-GW.

[Screenshot Description: A web browser interface showing the 'Protocol Settings' page. Options include 'Additional TCP Port', 'Search by Poll Address' (options for poll address range), and 'Master Mode Selection' (Primary/Secondary).]

Diagnostics and Miscellaneous

Diagnostics

Clicking this option displays diagnostic messages related to the HM-GW's performance. This information can be valuable for troubleshooting, such as determining why a connected HART device might not be detected.

Miscellaneous

• Reboot Device: Resets the HM-GW without disconnecting power. Allow approximately 5 minutes for devices to be re-discovered before attempting HART-IP communications again.
• Logout: Returns the browser screen to the initial login state. A valid password is required to log back in.

HART-IP Settings for DevCom

Configuring your HART-IP client, such as the DevCom family of HART Communicator Apps, is straightforward. Enter the IP address assigned to the HM-GW and ensure the HART-IP Port is set to the default value, which is 5094. The following is an example for DevCom2000:

[Screenshot Description: A screenshot of the DevCom2000 software application, specifically the 'Options' dialog for configuring a HART-IP connection. It shows fields for Serial Port, Modem Type, and Online DevCom2000 settings. The HART-IP settings include fields for IP Address (e.g., 192.168.0.101) and Port (5094), with options to save IP addresses and access advanced settings.]

Network Hierarchy in DevCom

After setting the IP address and port in the HART-IP client, click "New Device" to view the network hierarchy. The following is an example in DevCom2000:

[Screenshot Description: A screenshot of the DevCom2000 application showing the 'Network Device Selection' window. It displays a hierarchical view of network devices, starting with 'HART-IP Gateway', and listing connected devices like 'RDO OUTLET PRESSURE 2' and 'T-2001 PRE BURN'. Buttons for 'Quick Scan', 'Detailed Scan', and 'Close' are visible.]

Scan Options:

• Quick Scan: Displays all devices in the network.
• Detailed Scan: Displays all devices in the network hierarchy (note: this is slower than Quick Scan).

Individual Device

Double-click on a device in the hierarchy to open a HART Communicator instance within DevCom. This allows you to view and edit device parameters, retrieve device status, and save the complete device configuration to disk, similar to using a HART modem directly at the device.

Troubleshooting

Problem: No devices show in the Device List

Verify the following conditions:

1. Loop power supply is active. ✔️
2. Loop resistance is between 250 ohms and 1 Kohms.
3. Loop current is within HART limits.
4. If using a multi-drop configuration, ensure all transmitters in the loop have unique addresses.

Warranty

The HM-GW is warranted for 1 year against defects in materials and workmanship. For any issues, contact ProComSol, Ltd Support. A Return Material Authorization (RMA) number, obtained from ProComSol, Ltd, is required for all returned items.

Contact Information

ProComSol, Ltd
Process Communications Solutions
20525 Center Ridge Rd
Suite 320
Rocky River, OH 44116
USA

Phone: 216.221.1550

Email: sales@procomsol.com, support@procomsol.com

Web: www.procomsol.com