E |
Manual Mode
This section explains how to use Manual mode to manually poll the selected Micro PLC:
HReading one word of input, output, or register data
HSetting an output low or high
HWriting a single register
HCreating or changing a register file
HWriting data to a register file
HCreating a report of exceptions
HReporting 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 ªdataº 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 ªBad Checksumº is shown along with no actual received data.
Appendix E Data Acquisition, Logging, and Display Program |