D7100 Modbus TCP/IP Ethernet Voltage Input Module


The D7100 voltage input module contains seven isolated differential inputs for measuring DC voltages. Six user-selectable input ranges are available from +/-25mV to +/-10Vdc, making them ideal for measuring a wide variety of industrial sensors and annunciators.  Each input channel can be programmed to measure any one of six ranges.

The module performs all signal conditioning, a 16-bit analog to digital conversion, linearization and stores the result in a 16-bit unsigned integer format. The unsigned integer data values represent a percentage of the full scale voltage range.

The data values are transmitted to any supervisory host computer that supports the Modbus TCP ethernet protocol.  See the links to a Modbus scaling example and product documentation below.

Download Datasheet

Download Manual

The D7100 voltage input module can be mounted on a DIN-Rail using the MK-1 mounting kit.

Out of stock

Additional Information

Dimensions 7.14 × 4 × 1.5 in

+/-25mV, +/-50mV, +/-100mV, +/-1V, +/-5V, +/-10V.


• 7CH Differential Voltage Input Module
• User-selectable analog input range per channel.
• RJ-45 10/100Mbps Ethernet interface.
• Modbus TCP/IP Ethernet Protocol.
• IP Address, Static or DHCP (Default).
• 500Vrms analog input isolation.
• 16-bit analog input measurement resolution.
• Continuous self-calibration
• Programmable analog input digital filters.
• Requires +10V to +30Vdc unregulated supply, 1.4W.
• Removable screw terminal plug connectors.
• CE marked.


The D7100 modules are compatible with all commercial software programs and OPC servers that support the Modbus TCP/IP protocol. Commercials software programs from Wonderware, DreamReport, Indusoft, DAQFactory and Dasylab all support the Modbus RTU protocol. OPC Servers from Kepware and MatrikonOPC support the Modbus TCP/IP protocol.


• Process monitoring and control
• Remote data logging to any host computer
• Product testing

Click outside to hide the comparison bar