G3
Series
PROFIBUS
‐
DP
Technical
Manual
Page
17
TDG3PTTM1-2EN
02/09
Subject to change without notice
www.numatics.com/g3
Diagnostics
Communication Module LED Functions
Upon power up, the Module and Network Status LEDs indicate the state of the unit. There are two LEDs on
the G3 PROFIBUS-DP node. The LEDs functions are described in the table below.
LED Name
Color
Status
Description
Red ON Bus Error. Bus connection failed or off-line; Invalid
parameterization, configuration, or bus address.”
Green ON
Normal operation. The bus link is OK. Baud rate, detected
parameterization and configuration OK. Unit is in data exchange
mode.
NETWORK
STATUS
Green
Red FLASHING
The module configuration (I/O and valves) in the user
application is different than the physical configuration of the
manifold.
Red
ON
Critical hardware fault. The microprocessor is not running.
Green
ON
Normal operation. Node hardware is OK.
MODULE
STATUS
Green
Red
FLASHING
Module is in self-test mode. Cycle power to end self-test mode.