ProSoft Technology PTQ-PDPMV1 User Manual
Page 179
PTQ-PDPMV1 ♦ Quantum Platform
Mailbox Messaging
PROFIBUS DP Master Network Interface Module for Quantum
User Manual
ProSoft Technology, Inc.
Page 179 of 306
August 12, 2014
Mailbox Message Structure: From PTQ module
Quantum
Address
(Example)
Unity
Address
(Example)
Relative
Word
Offset
Type
Description
41180
%MW1180
79
Message ID Message ID value will match value used
to generate the outgoing mailbox
message
41181
%MW1181
80
Message
Info
See individual commands for data
values to be entered in each of these
register locations
41182
%MW1182
81
Command
41183
%MW1183
82
Data Size
44184
%MW1184
83
Frame
Count
41185
%MW1185
84
Frame
Number
41186
%MW1186
85
Offset high
41187
%MW1187
86
Offset Low
41188
%MW1188
87
Extended
Word 1
41189
%MW1189
88
Extended
Word 2
41190
%MW1190
89
Extended
Word 3
41191
%MW1191
90
Extended
Word 4
41192
%MW1192
91
Extended
Word 5
41193
%MW1193
92
Extended
Word 6
41194
%MW1194
93
Extended
Word 7
41195
%MW1195
94
Extended
Word 8
-
-
-
See
individual
commands
41223
%MW1223
222
Keep the following points in mind:
If the In_Mailbox_Control_Index values are equal in the Input and Output
Data blocks, the PTQ module will place the next message present in the
mailbox queue into the Input Data image and increment the
In_Mailbox_Control_Index in the Input Data image.
After the processor processes a new In Mailbox Message, it should set the
In_Mailbox_Control_Index (in the Output Image) to match the value received
in the Input Image. This tells the PTQ module to transfer the next In Mailbox
Message (if there is one) to the processor.