Chapter 18 Testing and Debugging Tools Additional remark If the comment on a device which is monitored is changed, users have to close the device monitoring table in which the device is added, and open the window again to get the new comment on the device. If the properties of a symbol in a device monitoring table are changed, or a symbol in a device monitoring table is removed from the symbol table, the symbol in the device monitoring table will not be updated, and will not have any effect in the online mode. Please delete the symbol from the device monitoring table, and add it again. 18.1.6 Online Editing Function and Online Update Function *.
Currently, NOT supported by DVPxxMC When the system is in the online mode and the PLC is running, users can modify the program monitored through the online editing function and the online update function. Please refer to the following table for more information about the limits set on the editing of programs. 18-21 Programming Description language Ladder diagram One network is edited at a time. Users are allowed to add new networks. After a new network is added, the network which can be edited will be the new network, that is, the previous networks can not be edited. Function block diagram One network is edited at a time. Users are allowed to add new networks.
After a new network is added, the network which can be edited will be the new network, that is, the previous networks can not be edited. Instruction list There is no limit on the number of lines which can be edited. Structured text There is no limit on the number of lines which can be edited. Sequential function chart A sequential function chart can not be modified online, but actions and transitions can be modified. The limit set on the editing of an action or a transition depends on the language used to create the action or the transition.