Ritron DATAFLOW RTU Series Guía de usuario descargar pdf (Pagina 34)

DATAFLOW RTU

>>> RTU PROGRAMMER VERSION 3.03 HELP FILE <<<(continued)

Input # 1 # 2 # 3 # 4 # 5 # 6 BATTERY

Tag Name

Initiate Xmit

YES YES NO NO NO NO NO

Type DADDDD A

Invert YES NO NO NO NO NO NO

Threshold / 50 % 10 % 50 % 50 % 50 % 50 % 1.00 V

Dead Zone

Time Delay

5.00 S 0.25 S 0.25 S 0.25 S 0.25 S 0.25 S 0.25 S

The corresponding entries for the output configuration of RTU # 2 would be:

Output Digital 1 Digital 2 Analog 1 Analog 2

Tag Name

Used

YES NO YES NO

Init Condition OPN CLO 0 % 0 %

From ID 1010

From Location INPUT 1 INPUT 1 INPUT 2 INPUT 1

Rcv Check-In 0: 0: 0: 0 0: 0: 0: 0 0: 0: 0: 0 0: 0: 0: 0

Fail-Safe State EFGH

When the RTU is turned on, the outputs will be set to the initial conditions. These values will

remain on the outputs until an incoming message changes the outputs or until a fail-safe

condition is set. Both used and unused outputs can have an initial condition and a fail-safe

state.

This RTU can be programmed to expect a check-in from other units. If this check-in

message is jammed or the other RTU fails to respond, this RTU can set a fail-safe

condition. The value in this field is the amount of time this RTU must go without receiving a

message from the other RTU before it can set its fail-safe state. Each From ID can have

only one receive check-in time. Place this check-in time in the first column which contains

the appropriate From ID.

The letter in the fail-safe state field indicates which fail-safe state will be used upon loss of

signal from the unit listed in From ID. The fail-safe states are listed in the lower right corner

of the system configuration screen.

2.3 Function Keys

The bottom two rows of the RTU input/output configuration screen form the function key

menu. Select an input field and press F1 to display help for the selected field. Press F2 to

display this full help document. Press F10 to return to the RTU system configuration screen.

3.0 RTU SCADA Configuration Screen

The SCADA configuration screen lists four SCADA points which can be stored in the RTU

EEPROM. The function key menu provides access to the full SCADA configuration. SCADA

configuration allows the user to connect one RTU to a supervisory control and data

acquisition program and poll remote RTUs over RF. The SCADA program must use the

MODBUS protocol. The SCADA configuration must reside in the one RTU connected

directly to the SCADA program. That RTU uses the routing information in the SCADA

configuration to send an RF message to the addressed RTU.

D=Digital, A=Analog

( B-9 )

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