Hardware reference
HARDWARE REFERENCE MANUAL
167
Revision 5.0
3.7.2
LEDs description
/i
3.7.3
Node number selectors
You can use the node number selectors to assign a node number to the
TJ1-PRT. This node number identifies the TJ1-PRT in the PROFIBUS
network.
The upper node number selector sets the tens of the node number. The
lower node number selector sets the units of the node number. Both
selectors range from 0 to 9. To set a selector to
n
, turn the arrow to point to
the label
n
. Refer to the chapter, Communication Protocols in the
Programming Manual.
Label
Status
Description
run
off
Start-up test failed. Unit not operational
Operation stopped. Fatal error
on
Start-up test successful. Normal operation
ERC
off
Normal operation
flashing
Start-up error
on
Fatal error in program
Error occurred while Reading or Writing error log
ERH
off
Normal operation
flashing
I/O-size not configured
on
Error detected in communication with controller
COM
off
No PROFIBUS data exchange communication
on
I/O data exchange on PROFIBUS is active
BF
off
No PROFIBUS bus communication errors
flashing
Parameter values sent by the PROFIBUS master unit are invalid.
I/O data exchange is not possible.
on
No PROFIBUS communication is detected by the unit