Modbus TCP Remote IO Ethernet industrial protocol
Millions of devices world wide support Modbus
Modbus is a messaging structure between intelligent devices, think of it a little like universal language. It is a de facto standard, truly open, and the most widely used network protocol in the industrial manufacturing environment. It has been implemented by hundreds of vendors on thousands of different devices to transfer data between control devices. Brainboxes Remote IO devices support Modbus TCP. Control and monitor all kinds of industrial equipment, for example andon lights, motors, fans, conveyors.
Typical Applications include:
- PLCs
- HMIs
- Gas and oil substations
- Buildings Management
- infrastructure & transportation
- Sub sea and renewable energy
We are Modbus Organisation Members

Brainboxes' Ethernet to Digital I/O products that support Modbus TCP
ED-516 | ED-527 | ED-538 | ED-588 |
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Ethernet to 16 Digital Inputs + RS485 Gateway | Ethernet to 16 Digital Outputs + RS485 Gateway | Ethernet to 4 Relays and 8 Digital Inputs + RS485 Gateway | Ethernet to 8 Digital Inputs and 8 Digital Outputs + RS485 Gateway |
IO Protocols
Modbus TCP or DCON ASCII (over TCP or Virtual COM port)
Description
16 Digital Inputs
Digital Inputs
16
Digital Outputs
0
Analog Inputs
0
Analog Outputs
0
Serial Gateway
RS485 NuDam/ADAM compatible expansion port
Industrial Standard
Yes
| IO Protocols
Modbus TCP or DCON ASCII (over TCP or Virtual COM port)
Description
16 Digital Outputs
Digital Inputs
0
Digital Outputs
16
Analog Inputs
0
Analog Outputs
0
Serial Gateway
RS485 NuDam/ADAM compatible expansion port
Industrial Standard
Yes
| IO Protocols
Modbus TCP or DCON ASCII (over TCP or Virtual COM port)
Description
8 Digital Inputs and 4 Relays
Digital Inputs
8
Digital Outputs
4 Relays
Analog Inputs
0
Analog Outputs
0
Serial Gateway
RS485 NuDam/ADAM compatible expansion port
Industrial Standard
Yes
| IO Protocols
Modbus TCP or DCON ASCII (over TCP or Virtual COM port)
Description
8 Digital Inputs and 8 Digital Outputs
Digital Inputs
8
Digital Outputs
8
Analog Inputs
0
Analog Outputs
0
Serial Gateway
RS485 NuDam/ADAM compatible expansion port
Industrial Standard
Yes
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£ 189.00 (gbp) | £ 189.00 (gbp) | £ 199.00 (gbp) | £ 189.00 (gbp) |
Details | Details | Details | Details |