MorphuisOGrady
Member
Hi Guys,
I need a bit of help with this one.
I have a SCADA application communicationing with 9 PLCs.
An Energy Managment screen accepts a Date Input in the form of MM DD YY and this is verified in one of the PLCs and if date is valid (ie. 1-29 in Feb etc). Its starts a sequence.
This all works fine but know i need to do this verification at SCADA level, in the event of this PLC failing i need the sequences to start in other parts of plant. SO If the date and time is valid (date is valid for year and End time is > Start time. When I have verified it is correct I will then pass this data to all PLCs.
Any suggestions how i can take an input like
MM DD YY: STart Date (3 Memory Tags)
MM DD YY: ENd Date ) 3 Memory Tags)
HH: MM : STart Hour Min ( 2 Memeory Tags)
HH: MM : End Hor Min (2 Memory Tags)
Perform a check. If invalid, flag an error?
Thanks
I need a bit of help with this one.
I have a SCADA application communicationing with 9 PLCs.
An Energy Managment screen accepts a Date Input in the form of MM DD YY and this is verified in one of the PLCs and if date is valid (ie. 1-29 in Feb etc). Its starts a sequence.
This all works fine but know i need to do this verification at SCADA level, in the event of this PLC failing i need the sequences to start in other parts of plant. SO If the date and time is valid (date is valid for year and End time is > Start time. When I have verified it is correct I will then pass this data to all PLCs.
Any suggestions how i can take an input like
MM DD YY: STart Date (3 Memory Tags)
MM DD YY: ENd Date ) 3 Memory Tags)
HH: MM : STart Hour Min ( 2 Memeory Tags)
HH: MM : End Hor Min (2 Memory Tags)
Perform a check. If invalid, flag an error?
Thanks