Jetter AG
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JCM-631 User Manual
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8.2.9 Flag
Flags are one-bit operands. This means they can either have the value TRUE or
FALSE.
Properties of user
flags
■
Global variables which are assigned to permanent addresses (%MX)
■
Non-volatile
■
Quantity: 256
■
Flag numbers: 0 ... 255
Properties of over-
laid user flags
■
Global variables which are assigned to permanent addresses (%MX)
■
Non-volatile
■
Overlaid by registers 1000000 ... 1000055
■
Quantity: 1,792
■
Flag numbers: 256 ... 2047
Properties of
special flags
■
Global variables which are assigned to permanent addresses (%MX)
■
When the operating system is launched, special flags are initialized using their
default values.
■
Quantity: 256
■
Flag numbers: 2048 ... 2303
Memory access
■
By JetSym
■
From HMIs
■
From the application program