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Status LEDs of the inputs (DI, AI) and outputs (DQ)
Table 2- 7
Name
DI
DQ
AI
LEDs with a firmware update
After activating a new firmware file, the following LEDs are lit briefly when the RTU restarts:
● Red: STATUS
● Green: DC IN, BAT, SIM, VPN
2.3
Interfaces and connectors
You will find the location of the individual RTU connectors in the section Appearance of the
device (Page 39).
You will find the pinning of the terminal blocks and the connector plans in the section
Connecting up the RTU (Page 61).
You will find the electrical data of the connectors in the section Technical data (Page 261).
You configure the power supply of the RTU itself and the control outputs of the RTU in the
WBM, refer to the section Power supply (Page 142).
Note
Output voltage
The voltage at the terminals X10, X11, X40 and X42 of the RTU can be set in the WBM for
all control outputs to 12 or 24 VDC.
RTU3030C
Operating Instructions, 09/2017, C79000-G8976-C382-04
IO status LEDs
Color
LEDs, connectors, buttons, card slots
Meaning
Last read status of the "OFF" input
•
DI0 / DI1 configured as counters
•
Input not configured:
•
Last read status of the "ON" input
Last read status "OFF" (relay open)
•
Output not configured:
•
Last read status "ON" (relay closed)
No error
•
Input not configured:
•
Errors:
Measured value outside the measuring range (overshoot,
•
undershoot)
Cable break (with 4...20 mA signal)
•
Overload of the measuring amplifier of the RTU
•
2.3 Interfaces and connectors
43
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