Technical data

SINAUT MD720-3
C79000-G8900-C210
55
Troubleshooting
10
SINAUT MD720-3 and SINAUT MICRO SC do not connect
The status indication
of the SINAUT MICRO SC shows that the connection to
the SINAUT MD720-3 is not established and the LED “C” (Connect) of the SINAUT
MD720-3 is off or blinks slowly.
The SINAUT MD720-3 is not ready for Operation
Please check the LED indication of the SINAUT MD720 (refer to System manual
SINAUT MD720-3, chapter Functions of LEDs in OPC-Mode), if the SIM card is
inserted correctly and the if the PIN is accepted. If a problem is indicated, please
follow the related instructions about the PIN of the SINAUT MD720-3 System
manual.
The Signal quality at the SINAUT MD720-3 is not sufficient
Please check with the LEDs of the SINAUT MD720-3 (refer to System manual
SINAUT MD720-3, chapter Functions of LEDs in OPC-Mode), if the signal quality is
sufficient or better. Change the antennas position, until you have a sufficient or
good signal quality.
The SINAUT MD720-3 does not attach the GPRS
Please check with the LEDs of the SINAUT MD720-3 (refer to System manual
SINAUT MD720-3, chapter Functions of LEDs in OPC-Mode), if the device is
attached to the GPRS. If not, please double-check the entries for APN. AP_USER
and AP_PASSWORD in your PLC program module WDC_INIT. Pushing the SET
button of the SINAUT MD720-3, the device will send a list of the current
configuration to a connected PC running a terminal software (refer to System
manual SINAUT MD720-3, chapter Getting the current values and settings). If the
displayed APN value does not correspond to the value of your PLC program,
please double-check the connection between PLC and SINAUT MD720-3.
Please check also, if your PLC is in RUN mode.