IOLINK block soft failures 
Device Index value is zero upon power up 
232  Experion C300 Controller User's Guide   R301.1 
 Honeywell 11/06 
Soft Fail Message  Condition when indicator is lit  Corrective Action 
 
block soft failures 
for description 
and corrective actions. 
Debug Flag Enabled 
Indicates that engineering debug 
firmware is running in the controller.  
Non-standard behavior and/or 
performance may occur.   
If not running a special image 
under the direction of Honeywell 
SSC, re-load the controller with the 
C300 Controller firmware for the 
Experion system release that is 
currently running on the system. 
Hardware Minimum 
Revision 
Indicates that the controller hardware 
is useable (POST passes) but it must 
be upgraded for proper operation. 
Replace controller module.   
 
IOLINK block soft failures 
 
Notifications which are generated by the controller identify Soft Failure conditions in the 
IOLINK interface, when indicator is lit.   
Table 17  IOLINK Block Soft Failures 
 
Soft Fail Message  Condition when indicator is lit  Corrective Action 
Duplicate IOL Address 
Indicates a duplicate IOLink address 
has been detected. 
Check the secondary IOLINK 
and/or IO Modules for proper 
physical address. 
In the C300 this is derived from the 
Module’s device Index, one partner 
having an odd index and the other 
having an even index.