Option Adapters

Front Panel Components, Continued

LED Indicators This Option Adapter has three LED indicators. Their functions are described in the table below.

LED

Status

Function

 

 

 

MB+ ACT

Green

Indicates activity on one or both of the Modbus Plus ports (see

 

 

the flash pattern table below)

 

 

 

 

Off

No activity on either Modbus Plus port

 

 

 

ERR A

Red

Indicates a communications failure on Modbus Plus port A*

 

 

 

 

Off

No problems detected on Modbus Plus port A

 

 

 

ERR B

Red

Indicates a communications failure on Modbus Plus port B*

 

 

 

 

Off

No problems detected on Modbus Plus port B

 

 

 

* If you are not using redundant cabling on the Modbus Plus link (i.e., if only one of the ports is being used) the Error LED for the unused port will be on constantly when Modbus Plus communication occurs on the network.

Continued on next page

870 USE 101 10 V.2

81

Page 81
Image 81
Schneider Electric Processor Adapter manual Mb+ Act