User`s manual

4-2 Series 90™-30 CPU with Embedded PROFIBUS Interface – November 2004 GFK-2334A
4
Configuring PROFIBUS Parameters for the PROFIBUS Slave CPU
The CPU367 has three tabs that contain parameters for the embedded PROFIBUS slave:
PROFIBUS, Input Data Area, and Output Data Area. For details on the Series 90-30 CPU
parameters, refer to the software online help.
Note: The PROFIBUS card used in the CPU367 autodetects the data transmission
baud rate.
PROFIBUS Tab
Station
The Slave module’s station number that is used on the PROFIBUS network. Can be in the
range from 1 to 125. Each module on a network should be given a unique station number.
Default is 1. Note that the Master is commonly assigned to Station 0 (zero).
Status/Firmware
ID Address
This is the starting address for this two-word array. Status/Firmware ID Address is a
consumed range and as such must be a non-overlapping range in %AI, %I, %Q, %G,
%AQ, %R, %T, or %M. Defaults to %AI memory.
The Status word provides information about the status of the CPU367 module to
the PLC application. For more information, see “Get Slave Status - Reply Data
Format” in chapter 6.
The Firmware ID word contains the current firmware version running on the
CPU367. The Major Revision number resides in the upper byte and the Minor
Revision number resides in the lower byte of this word.
Tip: Use the Communication Request (COMMREQ) task 3 (GetSlaveStatus) to retrieve the information that is
reported in this memory area. (This COMMREQ is sent from the CPU of the PLC where the Slave module
resides.)
Length
Always two words. (A value of 2 for register memories and 32 for discrete memories.)
DP-V1 Status
The starting reference address of a 32-bit (2-word) range used at the beginning of a scan
to monitor the DP-V1 master messages. (For details, see “DP-V1 Read Indication” and
“DP-V1 Write Indication” on page 4-3.
Valid memory areas: %AI, %AQ, %G, %I, %Q, %R, %T, %M. Default: %AI.
Valid range:
For a discrete memory area: 1 through n-31, where n is the memory area's
configured limit on the CPU's Memory tab.
For a non-discrete memory area: 1 through n-1, where n is the memory area's
configured limit on the CPU's Memory tab.
Length
Always two words. (A value of 2 for register memories and 32 for discrete memories.)
Inputs on Loss of Master
Determines what values are used for the data received by the module from the master
(inputs to the Slave module/outputs from the master) if communication with the master is
lost.
Choices are:
Hold Last State (default) – Until communication resumes and new values are
received each input will have the value that it had when communication was lost.
Clear – Until communication resumes and new values are received, each input
will have a value of 0.