6
Troubleshooting
If during installation or operation anomaly or malfunctions are detected, the probable cause of the failure can be
found in the following manner:
1. No data come from the gateway; no data are available from the devices which communicate via the gateway
(hereinafter as
”
reading modules”). In this case try to find the cause of the failure as follows:
•
Find out whether there is an IP-connection between the gateway and the superior system by using of
the standard ”ping” test commonly used in the IP-network:
–
if the gateway is connected directly to the public network (it has a public IP-address), it should
respond to ”ping” test from any computer with an access to the public Internet;
–
if the gateway is connected to a private network (it has a private IP-address) and there is an access
to the edge router of the private network available, try to use ”ping” test from the edge router;
–
if the gateway is connected through a VPN/APN, ”ping” test can be performed from the computer
which has access to the VPN/APN.
–
Availability of the gateway and its functionality can be verified by using the WEB-application
”
Mod-
ules Online” (
”
Radar”) as described in paragraph
•
If the gateway is accessible and functional, try to find out the reason why the gateway does not receive
the signals from reading modules under the proceeding described in the paragraph 2;
•
If the gateway is not accessible examine its power supplying, especially:
–
whether there has been a power failure in the object,
–
whether the power supply is on,
–
whether the gateway is really under power supplying (the
”
Power” LED should be shining).
•
If the power supplying of the gateway is not working, repair wiring, power supply or A/C power input.
•
If the power supplying is correct and the gateway is not accessible, search for any circumstances which
may affect the IP-connectivity, especially if the local Internet access in the installation site is currently
available, if there are any changes in routing or in IP-addressing, or whether the
PIN-control of the
SIM is turned off
.
•
If the IP-connectivity is most likely available and the power supply is correct (LED
”
Power” on the
module shines), perform a quick check of connection to the local network according to the paragraph
In case that the gateway has no IP-address assigned, check functionality of the local IP network and reset
the module by disconnecting and connecting of the power supply (the source off/on). If this intervention
does not restore communication, replace the gateway according to the paragraph
. If after replacing
the new module works correctly, label the dismantled module as ”defective”. If there is no apparent
physical damage on the module and it is still under warranty, follow the warranty claim procedure;
•
If the neither restart nor replacing of the module do not lead to restoration of the connection between
the gate and the superior system, solve the problem of IP-connectivity with experts in routing within
IP-network.
2. The module evidently communicates, answers to ”ping”, the result of the quick test of the gateway availability
is
”
OK”, but data does not come from all (or most) reading modules which communicate via the gateway. In
this case try to find the cause of trouble following way:
•
Check receiving functionality of the module in
”
Modules online” (
”
Radar”) mode as described in the
paragraph
. If there is no device in the
”
Radar” table even after a long time, the module probably
does not receive any messages;
•
Ensure that there are no changes in the object, which could have the fatal effect on receiving quality;
•
Check the module visually for any damage of the antenna, antenna cable or connector. If there are any
doubts about functionality of any of these components, replace it;
•
Check the module settings according to the paragraph
(Commands of ”gw” subsystem for setting
of RF network communication), particularly settings of the communication mode and frequency channel
parameters;
•
If the module is configured correctly perform measuring of the signal strength from reading modules by
using of the analyzer (or other receiving device);
WB169-RFG
34
