Atlas Copco Power Focus 4000 - Page 229

Fieldbus
9836 3123 01 229 (428)
Hardware
LED 1: Not used
LED 2: Error
LED 3: MBP Active
LED 4: MBP Init
Functionality of the indication LED’s
The module is equipped with four colored LED’s used for debugging purposes (LED 1 not used). The
function of the LED’s is described in the table and figure below.
Name
Color
Function
Error
(LED 2)
Red
Indicates that the communication is not OK.
Turned Off – communication OK
MBP Active
(LED 3)
Green
Indicates different Node Status:
Flashing every 160 ms – This node works normally, receiving and passing token.
Flashing every 1 s - This node is in monitor offline status.
2 Flashing, off 2 s - This node is in MAC IDLE never receiving-token status.
3 Flashing, off 1.7 s - This node is not hearing any other nodes.
4 flashing, off 1.4 s - This node has heard a valid packet that has a duplicated-node address sent from
another node on the network, using the same Node ID.
MBP Init
(LED 4)
Green
Indicates that the peer interface is initialized
Turned Off - peer interface is not initialized
Fieldbus connectors
ModBusPlus recommends the use of a 9 pin female D-sub connector. Depending on the protection class
and type of application, other connector designs may also be used.
Connector 9-pin female D-sub
Pin
Name
1
Cable shielding
2
Line-B
3
Line-A
4
PE