AS Series Module Manual 
10-24 
10.2.8.3  Specifications 
Item  Specification 
System Fail (SF): Red; Bus Fail (BF): Red 
Devices to Read and Write 
AS300 series data registers  RTU modules 
Minimum Time for Data Exchange to Operate   
Maximum Data Length/Per Transmission 
Input: 250 words 
Output: 250 words 
PROFINET Configuration 
Download PROFINET Configurations from PN Controller 
 
10.2.8.4  LED Indicators 
Number  Name  Description 
1  SF indicator 
System Fault Indicator 
RED light ON: an error occurs in PROFINET configuration or incorrect   
data for exchange       
2  BF indicator 
Bus Fault Indicator 
RED light ON: the network connection is OFF. 
RED light BLINKING: the network connection is working fine but the   
communication with PN Controller is NOT normal. 
OFF: the communication with PN Controller is working fine. 
3  LINK indicator X1/X2 
Indicates the status of Ethernet connection 
Green light ON: a network connection is established 
OFF: a network connection is not established 
4  ACT indicator X1/X2 
Indicates the status of Ethernet communication 
Orange BLINKING: data transmission   
OFF: no data transmission   
 
RJ-45 Pin Definition 
1 TX+  2 TX-  3 RX+  4 N/C 
5 N/C  6 RX-  7 N/C  8 N/C