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E
E-9GFK-0804B Appendix E Data Acquisition, Logging, and Display Program
Manual Mode
This section explains how to use Manual mode to manually poll the selected Micro PLC:
Reading one word of input, output, or register data
Setting an output low or high
Writing a single register
Creating or changing a register file
Writing data to a register file
Creating a report of exceptions
Reporting the device type
Manual mode is useful to determine the mapping of the Micro PLC, the integrity of the
interconnects, and other factors before creating an auto polling screen.
Data Format
In Manual mode, both transmitted data and received data are displayed in hex format.
In addition, both transmitted and received data displayed show header and checksum
information. Received data also explicitly shows the “data” from the response. All
returned data is 16 bits.
If the response has a bad checksum, wrong target ID, or wrong function number, this is
displayed before the data is shown. If no response is forthcoming (for example, if there is
an improperly wired cable), then “Bad Checksum” is shown along with no actual
received data.