Communication
ILX69-PBM ♦ CompactLogix™ or MicroLogix™ Platform
User Manual
PROFIBUS Master Communication Module
Page 78 of 113
ProSoft Technology, Inc.
6.3
Acyclic Messaging
PROFIBUS DP acyclic services are supported by the Studio 5000 programming tool by
means of CIP messages using the "MSG" instruction. The ILX69-PBM sample ladder
and AOI include multiple PROFIBUS acyclic services such as read/write and slave
diagnostic request.
6.3.1 Supported PROFIBUS DP Messages
Below are the PROFIBUS DP message functions supported by the ILX69-PBM.
Service
Cmd
Code
Group
Description
ILX69PBM_MSGDPV1Alarm
18
DPV1
Provides the means to acknowledge an alarm
indication originating from a slave
ILX69PBM_MSGDPV1Read
17
DPV1
A read request for a particular data block is sent to a
slave. This service is Slot- and Index-referenced.
ILX69PBM_MSGDPV1Write
17
DPV1
A write request is transferred to a slave, to write a
particular data block in the slave. This service is
Slot- and Index-referenced.
ILX69PBM_MSGSlaveControl
70
Standard Sending a command to one or several slaves
ILX69PBM_MSGSlaveDiagRequest 66
Standard Reading the diagnostics information from a slave
6.3.2 Standard Messaging
This section contains the description of each Standard Message function supported by
the ILX69-PBM. The CIP MSG setup of this request is as follows.
Parameter
Value
Description
Message Type
CIP Generic
Common Industrial Protocol (CIP) messaging
Service Type
Custom
-
Service Code
64 hex
Service Code "Bridge Message"
Class
65 hex
CIP Object "CIP_MSG_BRIDGE"
Instance
1
An integer identification value assigned to an object instance that
identifies it among all instances of the same class.
Attribute
0
A way of specifying a particular property or value within a CIP Object.
Source Element -
Reference to a Tag of type
ILX69PBM.CONTROL.SlaveDiagnostic.GetSlaveDiag
Destination
-
Reference to a Tag of type SlaveDiagnostic.GetSlaveDiag.Response
Source Length
16
Corresponds to the size of the ILX69PBM_MSGSlaveDiagRequest
structure
