Introduction

 

• Baud Rate Conversion: 

• Modbus RTU/ASCII Conversion: 

 

• Two Masters Share One Slave (for tSH-73x Series only): 

    

• Read-Cache Function:

  The built-in read-cache function is used to store previous requests and responses of the Modbus messages in the memory buffer of the tSH-700 module. When other HMI/SCADA master controllers requiring the same information from the same salve RTU device, the cached response is returned immediately. This feature dramatically reduces the loading on the slave serial port communication, ensures faster responses to the master, and improves the stability of the entire system.

 

• Application:

  Please refer to the tSH-700 Application Notes for more detailed product application case.

    

There are many RS-232 devices in industry applications. Nowadays it becomes important to link all those RS-232 devices together for automation & information collection. Usually those RS-232 devices are far away from the host-PC & widely distributed in the factory. I-752N has one RS-485 port and several RS-232/422 ports. It can assign a RS-485 address number to each RS-232/422 port. By the functionality, the host PC can send data to specific RS-232/422 device link to the I-752N via the RS-485. And the data won't case network conflict.