Chapter 3 Web Page Of RDU-A G2 61
RDU-A G2 Intelligent Monitoring Unit User Manual
Chapter 4 Maintenance
This chapter expounds the maintenance of RDU-A G2, including restoring default setting and troubleshooting.
4.1 Restoring Default Setting
Restoring default setting can be finished through two modes: software or hardware.
For software restoring, refer to
Restore System
in
3.4.7 System Options
.
Hardware restoring includes restoring RDU-A G2 admin password (default username: admin, password: emerson)
and RDU-A G2 IP address (for default IP address, refer to
Network port
in
1.2.1 RDU-A G2 Host
). The methods is:
press and hold the reset button (see Figure 4-1) for four seconds, release your hand until the run/alarm indicator
turns off, the IP address and password of the RDU-A G2 will be restored to factory defaults after the system restarts.
Reset button
Figure 4-1 Reset button
4.2 FAQ
Q1
: After RDU-A G2 is powered on, why the power indicator is not on?
A
: Please check that the power cable is connected correctly.
Q2
: How to deal with that the POWER indicator is not on or the COM port does not work after the
IRM-4COM\IRM-8DIAI\IRM-8DOAO expansion card is inserted?
A:
The POWER indicator is not on, please check that the expansion card is inserted correctly and completely; If it is
inserted normally, the RDU-A G2 will restart automatically, if the RDU-A G2 does not restart, please try to insert the
expansion card again.
Q3
: How to deal with that the communication of COM port is abnormal?
A
: Firstly, ensure that the device communication mode is matched. The COM ports on the RDU-A G2 and the
expansion card are RS-232/RS-485 adaptive ports; secondly, please ensure that the communication parameters are
correctly configured.
Q4
: How to deal with that the relay output port cannot control user equipment normally?
A
: Check that the line sequences of user equipment terminals are correct, see Table 1-15 for details.
Q5
: How to deal with that there is no access to RDU-A G2 login page when the RDU-A G2 communication is normal?
A
: There are three measures to solve the problem:
Step 1: Ensure that the IP address is correct;
The RDU-A G2 has two network cards, please ensure that the network cable is connected to the correct port.
If it is static addressing, refer to
Network port
in
1.2.1 RDU-A G2 Host
for default IP of RDU-A G2; if it is set to get
IP in DHCP mode, please view the current IP by referring to
Q6
.
Step 2: Ensure the connectivity of IP address.
