Rockwell-automation 1772-LV Mini-PLC - 2/15 Programmable Controller (S Manual de usuario descargar pdf (Pagina 37)

Memory Organization

Chapter 4

48

any other functions if you want to achieve maximum flexibility within your

program.

When you enter the report generation message [M][S][,][0][RETURN] the

terminal displays the prompt: MESSAGE CONTROL WORDS (Y DIGITS

REQUIRED): where “Y” is the required 3 or 4 digits of a word address for the

selected data table size. You must enter the beginning word address of the

message control word file. The Industrial Terminal then calculates and displays

the ending address. You can locate the message control word file anywhere in

the data table except in Processor work areas and in the Input Image table (i.e.,

do a SEARCH 50 to display the number of racks). When using EPROMs,

Memory Write Protect is active: The message control word file must be placed

in the areas of Data Table4 which can be changed (010

- 177

). Once you

choose the start address, the Industrial Terminal displays a table which shows

the message numbers associated with each message control word.

NOTE: You must verify that the message control word location does not

coincide with a block transfer location or a timer or counter preset location.

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 214 215

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Rockwell-automation 1772-LV Mini-PLC - 2/15 Programmable Controller (S Manual de usuario Pagina 37