S+S REGELTECHNIK HYGRASGARD RFTF-wModbus Bedienungs- Und Montageanleitung Seite 18

W-Modbus sensor (slave)
PAIRING "Slave"
The bus address is set to "1" at the factory and can be changed using DIP switches (see "Modbus configuration" section).
The bus address can be changed at any time, even after pairing to a gateway.
To pair a W-Modbus sensor (slave) to a master gateway (DDC/PLC), both units must be set to Pairing mode. This also applies if the
unit needs to be integrated into an existing network. Nodes that have already been paired are also automatically set to Pairing mode
and paired again. Only one master gateway may be in Pairing mode at any one time in the immediate vicinity (wireless range)!
The W-Modbus sensors (slave) – hereinafter referred to as the sensor –
are paired in three simple steps:
1. Activate pairing (open the connections)
The sensor is automatically set to Pairing mode at the factory.
Manual activation is performed by pressing the "Pair" push-button (long push of button for ≥ 10 seconds).
The status LEDs indicate that Pairing mode is active: L1 flashes red, L2 is turned off.
Please refer to the unit-specific operating instructions for the procedure for activating or deactivating
Pairing mode on the master gateway (DDC/PLC).
2. Pair the units (set up a connection)
When Pairing mode is active, the sensor automatically searches for a gateway
that is set to Pairing. This process can take approx. 1 - 2 minutes.
The status LEDs indicate the running processes: L1 flashes red – L2 is lit red
The status LEDs then indicate successful pairing: L1 flashes green –
L2 is lit green or orange (depending on the quality of the wireless connection).
Note! If the unit is paired with a master gateway from a third-party provider,
the status LEDs indicate using different colours: L1 continues flashing red – L2 is lit green.
Now there is a temporary connection that can be secured as described in step 3.
After approx. 2 - 3 minutes, you can already test the Modbus communication and
exchange data in this phase.
3. Deactivate pairing (secure the connections)
After all units have paired successfully, the user must manually terminate pairing
on the master gateway. This also terminates pairing on all paired units.
The sensor then performs an auto-restart and a secure connection is established.
Modbus communication is re-established within 2 - 3 minutes.
The status LEDs indicate the ongoing restart: first, L1 and L2 turn off.
The status LEDs then indicate that the connection is secure: L1 is lit green –
L2 is lit green, orange or red (depending on the quality of the wireless connection).
A permanent connection is now established and remains even after the unit is restarted.
Data exchange can begin in standard mode.
NOTES
Status LEDs turn off (LED L1 and L2 turn off)
→ LEDs deactivate automatically after a 30-minute time-out.
The LEDs can be reactivated using the pair button (short push of button).
Error message (LEDs L1 and L2 flashing red
→ Perform a reset: disconnect the unit from the power supply for approx. 1 minute,
then switch it on again. If the error persists, please contact S+S Technical Support.
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