Armstrong The Brain DRV80 Installation And Operation Manual - Page 6

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Figure 4 illustrates how a Brain

be used first to set the valve to its unique address via CN3 connector. This should be done before the network is activated (or

before each Brain

is connected to the network). The DRV25 unique address can be set via the SAGE

over a Bluetooth connection. Ensure the valve is in the OFF state before trying to set the address (DRV40/80 only).

The cable connecting to the BMS should be Cat5 twisted pair and should be in a 'daisy chain configuration'.

Wiring arrangement should be as shown above in figure 4. Do not connect in star formation (all Brains to one single point).

Armstrong International

IOM-776

Brain

Modbus Networking

Modbus

BMS

Figure 4: DRV 25/40/80 Modbus RTU

Modbus network should be arranged. For DRV40/80 the DRV Programming Software should

DRV-1

DRV-2

DRV-N

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