Modbus Server supported hardware
The Modbus Server is the extension of the runtime that performs the functions of a Modbus server device. It contains the protocol specific logic to communicate with vendor Modbus client applications that support the Modbus protocol. Communication support is provided for Modbus clients through either Ethernet TCP/IP or Serial RS-232.
Supported devices and communication interfaces
The Modbus Server driver has been tested interacting with the following devices:
| Device Type | Protocol | Platform |
|---|---|---|
| Modbus/TCP Clients | Modbus Application Protocol Specification v1.1b |
|
| Modbus RTU Clients | Modbus Application Protocol Specification v1.1b |
|
The Modbus Server will communicate to vendor Modbus client applications that implement the Modbus protocol as defined in the Modbus Application Protocol Specification, V1.1b. The Modbus Server provides the Read Only and Read/Write capabilities to the following register types.
- Coils - Read/Write
- Discrete Inputs - Read Only
- Input Registers - Read Only
- Holding Registers - Read/Write
The Modbus Server also has an associated Trigger Event that can be configured to execute a trigger whenever a write request is received for a Coil or a Holding Register.