
Contents ILX69-PBS ♦ CompactLogix or MicroLogix Platform
User Manual PROFIBUS Slave Communication Module
Page 56 of 102 ProSoft Technology, Inc.
March 20, 2015
(*) Note: The status information ‘InputDataLen’ and ‘OutputDataLen’ are
related to the definition of inputs and outputs from point of view of a
PROFIBUS master.
Example: If the ‘OutputDataLen’ indicates a value of 4 Bytes, then it is
related to the input area of the ILX69-PBS, because the input area of the
ILX69-PBS are outputs from point of view of a PROFIBUS master. The
same relation applies to the status ‘InputDataLen’ and the output area of
the ILX69-PBS.
DPV1 Status Registers
The controller application program uses the DPV1 status registers as an indication that the
network master has sent an unsolicited DPV1 Read/Write request. The first will contain two
bits which indicate if a read or write needs to be processed. If this register contains a non-
zero value, the slave’s user program must create an appropriate response to this request by
using a CIP MSG command (shown in Messaging section). The table below contains the
mapping of these registers.
A Read/Write Request has been received
Read/Write Indication Counter
Increments on every new DPV1 request
Address of Requesting Master
DPV1 Read/Write Indication Status Bits
1 = Indicates a Read Request
1 = Indicates a Write Request
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