2–6 P485 MODBUS TO PROFIBUS CONVERTER – USER GUIDE
INSTALLATION
CONFIGURATION
SWITCHES
The configuration switches are used to set the Profibus node address. Normally, these
switches are covered by a plastic hatch. Note that the node address can not be changed
during runtime, i.e. the P485 requires a reset for any changes to have effect. Recycle the
power supply to reset the module
Figure 2-10: P485 configuration switches
The node address is configured using two rotary switches as follows:
Profibus node address = (Switch B× 10) + (Switch A × 1)
Table 2–5: P485 status indicators
Number Description State Status
1 Profibus online Off Not online
Green Online
2 Profibus offline Off Not offline
Red Offline
3Not used- -
4Profibus
diagnostics
Off No diagnostics present
Red, flashing 1 Hz Error in configuration
Red, flashing 2 Hz Error in user parameter data
Red, flashing 4 Hz Error in initialisation
5 Subnet status *
(Modbus)
Off Power off
Green, flashing Initializing and not running
Green Running
Red Stopped or subnet error, or timeout
6 Device status Off Power off
Alternating Red/
Green
Invalid or missing configuration
Green Initializing
Green, flashing Running
Red, flashing If the device status LED is flashing in a
sequence starting with one or more red
flashes, note the sequence pattern and
contact GE Multilin
* This LED turns green when all transactions have been active at least once. This includes any
transactions using “change of state” or “change of state on trigger”. If a timeout occurs on a
transaction, this LED will turn red.
A
B
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