Chapter 9 Ethernet  Specification and Operation 
 
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9.6.3 AS-FPFN02 Error Codes & How to fix them 
9.6.3.1 LED Indicators 
Description  Procedure 
System Fail (SF) indicator RED light ON 
Check if the parameters downloaded to the Controller are the 
same as the actual placement   
Bus Fail (BF) indicator RED light BLINKING 
  Check if the upper device is well-connected 
  Check if the device name 
set in the software is the same as the 
device name shown in the function card 
  Check if the MAC address and the device name are assigned 
correctly 
Bus Fail (BF) indicator RED light ON 
  Check if the network cable is securely connected 
  Check if the controller and the function card are both supplied 
with power 
 
9.6.3.2 Status Registers of Siemens S7-1500 
Status Register   
(Siemens S7-1500) 
Description 
Input Data Available 
%I0.0 
If the value is TRUE, the input data is valid.   
If the value is 0, the input data is invalid.   
Check if the AS300 firmware version is V1.08 or higher.   
Connection Status 
%I4.0 - %I4.7 
Indicates PN connection status of Slot 1 ~ Slot 8. 
If the value is TRUE, the Slot is with a working PN connection (with IO module) 
If the value is FALSE, the Slot is without a working PN connection. 
Connection Status 
%I5.0 - %I5.7 
Indicates PN connection status of Slot 9 ~ Slot 16. 
If the value is TRUE, the Slot is with a working PN connection (with IO module) 
If the value is FALSE, the Slot is without a working PN connection.