Prosoft-technology MVI56-PDPMV1 Manuel d'utilisateur télécharger pdf (Page 135)

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MVI56-PDPMV1 ♦ ControlLogix Platform Mailbox Messaging

PROFIBUS DPV1 Master User Manual

ProSoft Technology, Inc. Page 135 of 255

March 22, 2011

3.2 Flex Mode Mailbox Communication

The processor sends a MSG instruction to the module with a Set Attribute Single

type to request the module to process a mailbox function.

When the module has a response ready to be processed, it will latch bit 15 of the

CIP Mailbox MSG Index word of the input block. The ladder logic recognizes this

condition and sends another MSG instruction (now Get Attribute Single) to

retrieve the mailbox response from the module:

1 2 ... 130 131 132 133 134 135 136 137 138 139 140 ... 254 255

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