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3. Signalling
The gateway’s 6 LEDs and the descriptive label on the removable cover which hides its two coding wheels
(gateway address) allow you to diagnose the status of the gateway:
c
e
g
d
f
h
telm
LUFP7
n
o
p
q
r
s
1 O
NLINE
2 O
FFLINE
3 N
OT
U
SED
4 F
IELDBUS
D
IAG
5 M
ODBUS
6 G
ATEWAY
DEL LED Æ Gateway state
Off: Profibus-DP bus:
Gateway off-line
n
ONLINE
Green: Profibus-DP bus:
Gateway on-line
(exchanges are possible)
p
NOT
USED
Off: —
Off: No power
Flashing (green): No
Modbus communications
Green: Modbus
communications OK
r
MODBUS
Red: Loss of communication
with at least one Modbus
slave (2)
LED LED Æ Gateway state
Off: Profibus-DP bus: gateway on-line
o
OFFLINE
Red: Profibus-DP bus: Gateway off-line
(exchanges are impossible)
Off: Gateway initialization achieved
Flashing red (1 or 2 Hz): Gateway
configuration error. (1)
q
FIELDBUS
DIAG
Flashing red (4 Hz): Error when resetting the
gateway on Profibus-DP. (1)
Off: No power
Flashing (red/green): Configuration absent / not valid
Use AbcConf to load a valid configuration
Green: Gateway currently being initialized
and configured
s
GATEWAY
Flashing (green): Gateway is in running
order: Configuration OK
(1) Specific errors indicated by the LED
q
FIELDBUS DIAG:
• Flashing red LED (1 Hz): input and/or output data length is invalid.
Check the overall length of the gateway data, under AbcConf (“Monitor” option from the “S
ub-Network”
menu), then adjust exchanges with the gateway accordingly, using the Profibus-DP network configuration
software (e.g.: SyCon).
• Flashing red LED (2 Hz): User parameter data length and/or content is invalid.
• Flashing red LED (4 Hz): Error when resetting the ASIC in charge of Profibus-DP communications.
(2) The LED
r
MODBUS becomes red whenever you use incorrect values in the outputs corresponding to the
queries of the two aperiodic services designed to read/write the value of any parameter of a Modbus slave (see
chapter 4.2.10 Description of Services Assigned to Gateway Inputs/Outputs, page 34). This LED will only revert to
its former green state if you reuse these very same services, but with correct values. More generally, this LED
becomes red, then reverts to a green state, on loss and recovery of the communications with any Modbus slave.
N.B. If the LED
s
DEVICE STATUS is flashing following a sequence beginning with one or
more red flashes, we advise you to note down the order of this sequence and give this
information to the Schneider Electric support service.