Prosoft-technology MVI56E-SIE Manual do Utilizador descarregar pdf (Página 141)

MVI56E-SIE ♦ ControlLogix Platform Reference

Client Communication Module User Manual

ProSoft Technology, Inc. Page 141 of 168

September 6, 2012

In the example above, all read blocks (1 to 10) are returned in sequential order.

Select Priority Read Block = 5

If the ladder logic changes the value of Local:1:O.Data[247] from 0 to 5, note that

the Local:1:I.Data[249] value begins to alternate between Block IDs 5 and 6 as

long as Local:1:I.Data[247] stays set to 5.

5-6-5-6-5-6-5-6-5-6-…

Select Priority Read Block = 0

After the ladder logic changes the value of Local:1:O.Data[247] from 5 to 0, then

the Local:1:I.Data[249] value is updated as before, by returning all blocks 1

through 10 in a repeating sequence.

1 2 ... 136 137 138 139 140 141 142 143 144 145 146 ... 167 168

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Prosoft-technology MVI56E-SIE Manual do Utilizador Página 141