Carel pCOWeb - 1.2 USER INTERFACE: BUTTON and LEDs; Meaning of the LEDs

pCOWeb +030220966 – rel. 1.1 – 12.12.2017 8
1.2 USER INTERFACE: BUTTON and LEDs
pCOWeb features ( Figure 1.b) a button (PUSHBUTTON) and two indicator lights (STATUS LED and NETWORK LED).
Functions of the button
When starting up the pCOWeb, this is used to select, for network communication, whether to use the factory parameters or the user parameters (see 3.1.2 on
page 12 for the procedure);
In normal operation, reboots pCOWeb without needing to disconnect the power supply (see 9.10.1 on page 53 for the procedure).
Meaning of the LEDs
Status LED: displays information on the communication status between pCOWeb and the pCO, and must normally be green and flash around 3 times a
second; in special circumstances it displays the operation of service activities, such as the restart of the internal program on the pCOWeb, the remote
updating of the program, or others. See the table below.
Figure 1.b - MAC address and indicator LEDs
Status LED Meaning Notes
Green flashing (3 times/sec) Regular
p
CO-
p
COWeb communication When running demanding tasks (sending a large number
of notifications), this may be green steady for a few
seconds
Red flashing slowly (once every 2
seconds)
p
CO-
p
COWeb communication not established Check the settings in paragraph 9.5 on page 46
Single red flash and then flashing green Single
p
CO-
p
COWeb communication error, one
failed response from the pCO or attempt to write a
variable with an index higher than 207
A
fter 5 failed responses, the Status LED starts flashing
red until communication resumes
[Off, then] green-red repeated in rapid
succession, then green steady for 1
minute
p
COWeb reboot phase See 9.10 on page 53
Green steady for a minute
p
COWeb reboot phase Wait for the conclusion of the reboot
Red
–
Off slow (1 second
–
1 second)
repeated 3 times
Detection of button pressed during reboot for
selecting factory parameters (rather than User
parameters)
Release the button to confirm, see 3.1.2 on page 12
Red
–
Off fast (3 times a second)
repeated 3 times
During reboot, confirms that factory parameters
have been selected by pressing the button
See 3.1.2 on page 12
Blue steady for a minute During firmware update, writing to non-volatile
memory
Do not interrupt the power supply, see 9.11 on page 54
Table 1.a - Status LED signals
Network LED: displays the status of the physical network connection (Ethernet connection signals), regardless of whether the network parameters are correct;
usually this must be green and flash when data is transmitted/received.
Table 1.b - Network LED signals
For the connection to the Ethernet network, use an S/FTP cable, category 5e or higher
Network LED Meaning Notes
Green steady Correct Ethernet data connection signals -
Green flashing Correct Ethernet data exchange -
Red No Ethernet signal detected See 0 on page 13