The SCADALink RIO100 is a remote RTU designed for general serial communications to smart devices such as Electronic Flow Meters (EFM) and industrial I/O signals such as 4-20mA signals and dry contact digital I/O. The RIO100 provides RTU and I/O capabilities, failsafe mode, and scheduled or periodic sleep mode for low-power operation.

Description: The RIO-MOD-RTU is a 24VDC powered Modbus Server device which can be used as a Remote Terminal Unit (RTU) for any Modbus system. It is ideal for direct connection to Modbus Master PLCs or SCADA systems. The unit uses RS485 as the physical connection and is easily set up through DIP switches.

RX shows communication requests from the Modbus master device to the RIO-MOD-RTU. Under normal operating conditions, this LED should turn on with Modbus trafi c. Relay output LEDs show the active state of relays 1–16.

License-free 900 Mhz radio / RTU designed for serial communications to EFM's and I/O signals. Flexible and powerful, allowing users to configure the device for many different applications. SCADALink – Industry Leader in Wireless SCADA & Automation Solutions

The SCADALink RIO900 is designed to operate as Wireless IO, Wireless RTU, and Wireless Modem System. License Free 900 Mhz Wireless Point-to-Multipoint Communication. The RIO900 features license-free 900 MHz spread-spectrum radio technology providing a range of up to 20 miles. Longer range can be achieved with RIO900 nodes configured as Repeaters.

Configurable Modbus Device ID and RTU Interface settings. RIO is Modbus slave device. It is configured using Modbus predefined registers. Device ID baud rate, parity and stop bits can be configured .

The RIO-MOD-RTU is a Modbus Slave device which can be used as an RTU for any Modbus system. It is ideal for direct connection to Modbus Master PLC’s or SCADA systems. The RIO-MOD-RTU is capable of providing 16 isolated relay outputs and 16 digital inputs . 32 indicator LED’s are conveniently placed on the unit, ideal for commissioning and ...

2014年7月10日 · The RIO 100-ESD and RIO 900-ESD models are specialized RTUs designed for emergency shutdown of Oil and Gas pumping systems. They integrate with existing radio networks to broadcast shutdown signals to multiple remote sites while simultaneously providing wireless access to field data over Modbus RTU protocol.

2020年5月22日 · Modbus RTU协议是工业控制系统中一种非常常见的通信协议，以其简单、可靠和高效的特点被广泛应用于各类设备的串行通信中。它适合小型到中型的系统，尤其在现场设备、PLC和传感器之间的通信中发挥着重要作用。

The Define Instruments RIO-MOD-RTU distributed I/O station is capable of providing 16 isolated relay outputs and 16 digital inputs. The isolated relay outputs are Form C change over (10A 250VAC or 10A 30VDC) with a 1kHz scan rate. The relay state is software selectable and features an auto shutoff.