Poll Modbus

View and change the data of your PLCs and Modbus TCP devices in real time from your phone or tablet.

With a WiFi or Ethernet connection to the device's network, Poll Modbus communicates via Modbus TCP or Modbus over TCP (encapsulated RTU) using its IP address, port and slave ID.

READING

• Holding registers (function 03) and coils (function 01), separately or together.

• Configurable polling time and timeout.

• Addresses in Modbus format (4xxxx, 0xxxx) or IEC 61131 (%MW, %M).

• Values in decimal, hexadecimal or binary.

• Data types: 16-bit signed or unsigned integer, 32-bit long integer and real (float), in normal or swapped order.

WRITING

• Tap a variable to write a new value to one register or several consecutive registers (functions 06 and 16).

• Single or multiple coils (functions 05 and 15).

• Auto toggle: switches a bit at a set interval, ideal for testing logic.

ORGANIZATION

• Optional name for each variable: shows "Name = value" with the address below.

• Communication profiles to save the settings of several devices.

The free version shows ads. Poll Modbus Pro adds the Modbus TCP server mode and has no ads.

Modbus is a registered trademark of Schneider Electric USA, Inc. This app is not affiliated with Schneider Electric.