ProSoft Technology MVI56-PDPMV1 User Manual
Page 140
Mailbox Messaging
MVI56-PDPMV1 ♦ ControlLogix Platform
User Manual
PROFIBUS DPV1 Master
Page 140 of 255
ProSoft Technology, Inc.
March 22, 2011
To send a mailbox request
1 Enter the mailbox configuration parameters (if applicable) in the following
controller tag:
MVI56PDPMV1.Mailbox.
Note: This step is not applicable to the following mailboxes (no parameters required):
SetClearMode
SetStopMode
SetOperatingMode
GetLiveList
2 Toggle the mailbox trigger bit MVI56PDPMV1.Command.
3 Verify that the mailbox trigger bit is automatically reset
4 Verify that the message to request the mailbox was successfully executed
through the increment of the following controller tag:
MVI56PDPMV1.Util.MSG.MailboxRequest.DNCounter.ACC
5 Verify that the message to retrieve the mailbox response was successfully
executed through the increment of the following controller tag:
MVI56PDPMV1.Util.MSG.MailboxResponse.DNCounter.ACC
6 Refer to the mailbox response data (if applicable) in the following controller
tag: MVI56PDPMV1.Mailbox.
Note: this step is not applicable to the following mailboxes (no response data):
SetClearMode
SetStopMode
SetOperatingMode
Example - GetSlaveConfiguration Mailbox
The following example shows how to use a mailbox command to retrieve the
slave configuration (identifier bytes) from a PROFIBUS slave.
The first step is to configure the parameters that will be required for the mailbox.
For the GetSlaveConfig mailbox, the only parameter required is the PROFIBUS
slave address (MVI56PDPMV1.Mailbox.GetSlaveConfig.Out.SlaveAddress).
Toggle the trigger bit to initiate the mailbox message request: