MergenHub Mobile works in two modes: it connects to your MergenHub server, or it talks to devices directly from the phone with no server. Permissions are the same as for the web user, the password is not stored on the phone and alarms arrive as push notifications. No extra license is needed.
Connect to a MergenHub server: the channel, device and tag tree, live values, writing to tags, alarm acknowledge, viewing SCADA screens, trends, device status and the event log. A user with the ConfigWrite permission adds, edits, copies and deletes channels, devices and tags, and can view or enter the server license. Permissions and channel/device access lists are the same as for the web user.
No server needed: the drivers run on the phone itself (Modbus TCP/RTU/ASCII, Siemens S7, OMRON FINS and NJ/NX (CIP), MQTT, DNP3, IEC 60870-5-104, IEC 61850 MMS, OPC UA client, Simulator). Address syntax and setting keys are the same as in MergenHub, and projects move between the phone and the server in both directions (Kepware/MergenHub JSON). Alarm definitions, advanced/derived tags (expression, totalizer, average/min/max) and operator screens designed on the phone are included. No license is required.
You choose the mode when you open the app. Both modes use the same screens; the difference is where the data comes from.
The phone connects to the MergenHub server at the plant. MergenHub talks to the field; the phone monitors, writes and acknowledges alarms. Permissions and channel/device access lists are the same as for the web user.
When an alarm is raised the server sends a notification, only to users with the Alarm permission and access to the tag who have notifications turned on. Notifications and mobile access are switched on and off in the web interface.
With no server, the phone talks to the devices directly; the drivers run on the phone. The channels, devices and tags you set up are later sent to the server with one tap.
When the tank level drops a notification arrives; open the alarm, see the value and acknowledge. The action is logged in the audit trail with the source “Mobile”.
Watch the SCADA screens designed in the web interface on the phone; with the right permission start a pump or change a setpoint.
Read a new Modbus or S7 device from the phone and verify the addresses; send the finished project to the server.
Connected devices, errors and active alarms, critical values on the watch list; several servers in one app.
Devices tested by Envest come from the library on the website straight to the phone: channel, device, hundreds of tags, efficiency and cost calculations and screens are installed in one go — on the server in server mode, into the phone’s project in phone mode.
Search by brand, model or protocol and filter by category. Each device shows its description, tag list and the screens it installs.
Only site-specific details are asked: IP, port, unit ID. If the name is taken the next free number is suggested (Kuyu2 if Kuyu1 exists).
The summary screen comes with efficiency gauges, measurements and controls; the settings screens are in the tabs at the top.
Four scenarios from real work: who does what, step by step.
The panel is installed and has an IP address; the technician stands at the station with nothing but a phone.
When the tank level passes 4.5 m the server sends a push notification; it arrives even when the phone is locked.
Several servers in one app; the state of each plant at a glance.
Defines the tags of a new analyser once, saves it with its screen as a template and shares it with the team.
Captured directly from MergenHub Mobile; values come live from demo well, tank and booster stations. The app interface is in Turkish.
The user signs in once with user name and password; the server issues a session token for that device. The password is not stored on the phone.
Administrators turn mobile access on or off globally and per user, see device sessions and close them with one click. Active users and the “Source” column of the audit log show whether an action came from mobile or web.
When an alarm is raised the phone gets a push notification, only for users with the Alarm permission and access to the tag who have notifications turned on. The server needs outbound HTTPS to exp.host.
A project built in phone mode moves to the server and a server project moves to the phone (Kepware/MergenHub JSON). Address syntax and setting keys are the same, so nothing has to be rewritten.
Device sessions and notifications need MergenHub 3.5 or later; older servers are reached with HTTP Basic (without device sessions or notifications). The server must be reachable on the network (api.url 0.0.0.0); HTTPS is recommended for access over the internet.
MergenHub Mobile needs no extra license. In server mode the server's existing license applies; phone mode is free.
Tell us who you are so we can inform you about new releases and help with commissioning. The download starts immediately.
Windows 10/11 · Server 2016+ · 368.6 MB — Your details are never shared with third parties. Unlicensed installs run as a free demo (all features, no tag limit; 2-hour runtime per start).
“Windows protected your PC”: More info → Run anyway. The installer is not yet code-signed; this does not indicate a problem with the file.
If the file says “blocked”: right-click → Properties → tick Unblock → OK.
Corporate PCs (AppLocker / WDAC / Smart App Control) may block the installation completely; contact your system administrator or write to us.
This is a shared DEMO server. Please note:
MergenHub 
