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Simatic 505 SoftShop
Table Move Memory
A block of memory within the controller is reserved for the operation of
the table move instructions, including the following:
•
Move Word To Table (MWTT).
•
Move Word From Table (MWFT).
When you assign a number to a table move instruction, be sure that you do not use
that number for any other table move instruction. For example, if you configure a
Move Word To Table #1 (MWTT1), do not configure a Move Word From Table #1
(MWFT1).
Assigning the same reference number to more than one table move instruction
could cause unpredictable operation by the controller, which could result in death
or serious injury to personnel and/or damage to equipment.
Do not use the same reference number more than once for a table move instruction.
This memory type consists of one word per table move instruction
configured. This word is used to maintain the current count of moves
done since the MWTT or MWFT instruction was last reset.
One Shot Memory
A block of memory within the controller is reserved for the operation of
the various instructions of the One Shot group, including the following:
•
One Shot
•
Time Set
•
Date Set
When you assign a number to a One Shot instruction, be sure that you do not use
that number for any other One Shot instruction type. For example, do not
configure more than one OS11.
Assigning the same number for more than one One Shot instruction type can cause
unpredictable operation by the controller, which could result in death or serious
injury to personnel and/or damage to equipment.
Do not use the same number more than once for the same instruction type (e.g.,
use it only once in One Shot, in Timer Set, etc.).
This memory type consists of one byte per configured One Shot
instruction. This byte is used to save the previous state of the instruction
input.
Because the instructions in the One Shot group use different bits of one
byte, these instructions
can be assigned identical reference numbers
.
That
is, if you configure a One Shot #11 (OS11), you can configure a Date Set
#11.