EES USM series, Руководство пользователя, Страница: 14 / 46

Functional description
Page 14 of 46 MSM-USM2G-BA-UK-001
Flashing red - error (

section
„Diagnos
is
“)
Flashing green - initialisation of the annunciator
[4] Terminals power supply
[5] Terminals function relays
[6] Terminals signal inputs
[7] Terminals function inputs
[8] LAN-connector (Ethernet / RJ45)
[9] Terminal serial interface (RS232 optionally RS 485)
[10] Watchdog-LEDs
„C
ommunic
ation“
red - Tx serial interface
green - Rx serial interface
yellow - CAN-Bus
[11] Service- and diagnosis interface USB-B (factory interface)
[12] CAN-Bus interface (RJ45)
[13] 2 x USB-A interface
3.10 Diagnosis
For monitoring and evaluation of the system functions different diagnosis information are available.
These are e.g. the signalling of errors on watchdog LEDs or relay contacts or the provision of error
information on the pr
otocol interface by means of the data object “error”.
3.10.1 Watchdog-LED
„
Self-
monitoring“
The watchdog-
LED „self
-
monitoring“ gives information about the current status of the annunciator
device or system:

Steady light green = no error

Flashing green (no flashing sequence) = initialisation of the annunciator

Flashing green (with flashing sequence) = annunciator in dedicated operation mode

Flashing red = error

Off = no power supply
From the flashing sequence, an error code can be read which defines the error. A flashing sequence
consists of:

Number of long flashing pulses

1
st
digit of the error code

Number of short flashing pulses

2
nd
digit of the error code

Pause
Example: long, short, short, pause = error code 12
In this section, the USM with 8 alarm channels is used to illustrate the general setup
of a USM. The number of signal inputs and the colours of the alarm LEDs can
deviate depending on the configuration and size of the respective USM.
If multiple errors are at issue, the LED displays the error with the highest priority.