Affected products:
ESP-HMI1-P Version 1.3
Implications of the problem:
When writing a negative 16-bit value from the HMI to a code position, the value is not accepted.
When does the problem occur:
When selecting Parameter channel 2 WORD in the Project Component Variable - Device data area window in HMI Designer and adding a sign by selecting the Sign check box. When the 16-bit plus sign or 32-bit plus sign setting is selected in the PLC instance parameter manager.
Diagnostic options:
When attempting to specify a new negative value, this is not displayed on the terminal - the previous value is still visible and active.
Short-term measures/recommendations:
Change the settings in HMI Designer to Parameter channel 2 DWORD in the Project Component Variable window. Use the Ext data type 32-bit plus sign setting and INT variables in the PLC instance parameter manager.
