Reducing information round trips and reducing system cabling

Reducing information round trips and reducing system cabling are sometimes at odds with each other. At this time,

the principle of saving investment should still be used as the choice. If the response time of the selected system

allows, a cable-saving solution should be selected. If the response time of the selected system is relatively tight, 

and it is enough to reduce the transmission of information a little, then the scheme of reducing information

transmission should be selected.

Now some field instruments with fieldbus are equipped with many function blocks. [Siemens 6ES7422-1BL00-0aa0

SIMATIC S7-400 Digital Output Module, B&R X20BB80 Bus Module, Allen Bradley 1794-OB16 Output Module, 

Siemens 6ES7412-2XJ05-0AB0 SIMATIC S7-400 CPU]Although the performance of the same function blocks of

different products will be slightly different, there are many function blocks with the same function on a network

branch. It is an objective existence. Which function on the field instrument to choose 

is a problem to be solved in the system configuration.

The principle of considering this problem is: minimize the round trip of information on the bus. Generally,

the function block on the instrument that outputs the most information related to the function can be selected.

Dear clients, if any RFQ  , pls contact with Vivi (sh_plc@163.com).