PS69-DPS
♦
CompactLogix or MicroLogix Platform
Configuration and Start-Up
Profibus DP Slave Communication Module
Page 32 of 94
ProSoft Technology, Inc.
January 12, 2009
X = Number of words configured for slave modules (PROFIBUS output data);
output size can be in the range between 68 and 190 words
Y = Number of words configured for slave modules (PROFIBUS input data); input
size can be in the range between 2 and 124 words
Input Size: The input size must be at least 68 Words (136 Bytes). It must be
large enough to accommodate the status information required by the module,
which is 68 Words (136 Bytes) plus the number of PROFIBUS output data.
The user can increase the size of this area using the size of each Output
module connected. The PROFIBUS Output area starts with Word 68 (Byte
136).
Output Size: The output size must be at least 2 Words (4 Bytes). It must be
large enough to accommodate the command information required by the
module, which is 2 Words (4 bytes), plus the number of PROFIBUS input
data. The user can increase the size of this area using the size of each Input
module connected. The PROFIBUS Input data image starts with byte 4.
Configuration Size: The size for the configuration array must be always 32
Words.
Note:
If the parameters do not correspond to the template values, then the controller cannot
establish communication with the module.
Select
Next >>
for the next configuration dialog.
2.2.3 Module Properties 2
The Requested Packet Interval RPI is shown in the following dialog box. Within
this time interval, the I/O data between module and controller are exchanged.
It is not possible to change the RPI in this dialog separately for each module. The
RPI can be changed in the properties dialog of the "CompactBus Local" for all I/O
modules. Values in 1.0 ms steps are possible. The PROFIBUS PS69-DPS
module supports all possible RPI values.
End the configuration of the module with
Finish>>.
