RTU Modbus interface : MPNC006 Mect srl
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ME7084_05 07/21
5
Status led
The operative conditions of the MPNC006 are indicated by the LEDs present on the
rear part of the device.
Figure 16: Led
5.1
On Led
ON when starting (switched on).
Flashes each time a command is received from the Modbus master.
5.2
Run Led
The run led has the task to signal if the communication between MPNC006 and the
connected terminals is working correctly or if errors have occurred.
Flashing
TBUS error
Fixed: On
TBUS configured
Fixed: Off
TBUS not configured
5.3
Overflow/configuration Led
The overflow LEDs indicate whether the signals on the analog inputs have exceeded
the permitted values. The permitted value depends on the configuration set.
Moreover, during the start phase, the overflow LEDs indicate the configurations
according to the DIP switch setting. See chapter “
Modbus parameters configuration
LED
Colour
Signification
On LED
Green Indicate a command reception from
the master
Run LED
Red
If On indicates that the
communication with terminals is
established
An-1 LED
Red
Analog channel 1 overflow Led
An-2 LED
Red
Analog channel 2 overflow Led
Dg1-Dg8 LED
Red
Digital I/O state Led
