Modbus Communication Leds - Fronius Smart Meter 240V-3 UL Operating Instructions Manual

Meter Not Operating
If none of the LEDs are illuminated, check that the correct line voltages are applied to the
meter. If the voltages are correct, call customer service for assistance.
A
B
C
Error
If the meter experiences an internal error, all LEDs will light up red for 3 or more seconds.
If you see this happen repeatedly, return the meter for service.
A
B
C
Modbus Commu- Near the upper left corner, there is a diagnostic Com (communication) LED that can indi-
nication LEDs cate the following:
Green Off
Yellow Off
R
Off
Off
Off
Red
Red
Red
3.0sec
A short green flash indicates a valid packet addressed to this
device.
Short yellow flashes or rapid flashing indicate valid packets ad-
dressed to different devices.
A one-second red flash indicates an invalid packet: bad baud
Red
rate, bad CRC, noise, bad parity, etc.
Rapid red/yellow flashing indicates a possible address conflict
Y R Y R Y
(two devices with the same DIP switch address).
Solid red indicates the address is set to zero: an invalid choice.
Red
19