Description
EL100T Analogue Expansion Module
EL100T can be collected centrally by means of inspection, so according to the actual situation, I chose a total of three SS7-16 16-channel temperature inspectors developed and produced by Shaanxi Industrial Automation Engineering Company. However, this type of temperature inspector uses Modbus RTU protocol (RS485 port) for communication, Modbus protocol is a universal language applied to electronic controllers. Through this protocol, controllers can communicate with each other, with controllers via a network (e.g. Ethernet) and with other devices. As a common industrial standard, it has been widely used in industrial networks consisting of control devices from different manufacturers for centralised monitoring and control.
EL100T module can communicate with multiple serial communication devices at the same time, such as connecting multiple inverters and inspectors at the same time. Its processor can be particularly convenient and simple to parameterise. If RS422/485 Modbus RTU communication is used, it is necessary to include information such as station number, data area, read/write commands, etc. in the data packet sent. For the slave device connected to the CP341 module to identify which station the packet is sent to. As well as the packet is the function of reading or writing to that data area.
EL100T is the use of analogue expansion modules and temperature inspectors to collect temperature signals schematic, intuitive comparison of the two diagrams is not difficult to find that the master-slave structure has the following advantages:
1, saving the number of hardware and investment.
2, saving installation costs.
3, saving maintenance overheads.
4, the user has a high degree of system integration initiative.
5、Improve the accuracy and reliability of the system.