Contents
ILX69-PBS ♦ CompactLogix or MicroLogix Platform
User Manual
PROFIBUS Slave Communication Module
Page 48 of 102
ProSoft Technology, Inc.
April 27, 2016
Watchdog Timeout
The ILX69-PBS supervises its I/O exchange with the controller within a specific time frame.
If the controller does not update the output data within this time, the slave stops the cyclic
data exchange with the master and goes into a safe state.
If the ‘ForceUserConfiguration’ parameter is set to 0, the ILX69-PBS automatically
calculates a timeout value by the RPI (Requested Packet Intervall). The calculated
watchdog calculates to 2x the RPI (+/- 5ms). The smallest watchdog value is 15 ms. The
module rounds the watchdog value to multiples of 5 ms.
WATCHDOG_TIME (ms) = MAX ( 2 x RPI)
If the "ForceUserConfiguration" parameter is set to 1, the ILX69-PBS will take the watchdog
value from the configuration array. Make sure the watchdog value is not smaller than the
RPI. The ILX69-PBS rounds the watchdog to multiples of 5ms.
Number of Valid Configuration Bytes
This parameter holds the number of valid configuration bytes that define PROFIBUS
Input/Output modules.
Module Type / Module Length
The ILX69-PBS offers a flexible, modular composition of its I/O data. Parts of the input and
output image can be viewed as single modules. The master can put the different modules
from the ILX69-PBS to different locations in its I/O area. The individually configured modules
are mapped linearly in the I/O area of the ILX69-PBS. It is possible to configure up to 24 I/O
modules. A module is defined by a Module Type and its Module Length:
Parameter
Data Type Valid values
Description
Module Type
SINT
0 = IN Byte
1 = IN Word
2 = OUT Byte
3 = OUT Word
4 = IN Byte con
5 = IN Word con
6 = OUT Byte con
7 = OUT Word con
8 = Blank space
Input Byte without consistence
Input Word without consistence
Output Byte without consistence
Output Word without consistence
Input Byte with consistence
Input Word with consistence
Output Byte with consistence
Output Word with consistence
Blank space
Module Length
SINT
0
1
2
3
4
5
6
7
8
9
1 Byte/Word
2 Byte/Word
3 Byte/Word
4 Byte/Word
8 Byte/Word
12 Byte/Word
16 Byte/Word
20 Byte/Word
32 Byte/Word
64 Byte/Word
