The Advantech ADAM-4000 Series is a complete I/O solution featuring Modbus Network Support with a robust and intelligent design. It is claimed to be an easy to use and cost-effective choice for system I/O requirements. The Modbus devices communicate over a serial network in a master/slave type relationship using either ASCII or RTU mode.
The ADAM-4000 modules are designed to operate as slave devices on a Modbus network which communicates in Modbus/RTU transmission mode.
With its built-in Modbus/RTU protocol, any controller bearing Modbus/RTU standard can be integrated as part of a control system. Any Modbus Ethernet data gateway can upgrade these I/O modules up to the Modbus/TCP Ethernet layer. Most HMI software is bundled with a Modbus driver and can access the ADAM-4000 I/O directly. Moreover, the Modbus OPC server and Modbus/TCP OPC server are provided as data exchange interfaces between the ADAM-4000 Modbus I/O and any Windows application.
ADAM-4000 modules support both Modbus and RTU protocols and the communication mode can be selected through Windows Utility Software. If users apply the ADAM protocol, ASCII command/response will remain the same. In RTU mode, data is sent as two four-bit, hexadecimal; characters, providing higher throughput than in ASCII mode for the same baud rate.
Included in the ADAM-4000 series are analog input, T/C input, RTD input, analog output, digital input/output and relay output modules. Various modules are designed with channel differential, 3000 V d.c. system isolation, while others offer 4-20 mA input range without the use of an additional resistor.
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