Datalogger & VBus^®-Accessories

STA-W module

The STA-W module is an interface designed for the exchange of heat quantity measurement values between RESOL devices and external appliances. It can be connected to a RESOL controller or a calorimeter via the VBus^®. Whenever the heat quantity increases by 1 kWh, the module operates a potential-free contact which is connected to the central building management system. the total number of operated contacts can be visualised as heat quantity by the software of the central building management system.

Technical data
Outputs: 1 potential-free relay (max. 24 V DC, 1 A, 15 W)
Power supply: RESOL VBus^®
Data interface: RESOL VBus^®
Housing: plastic, PC-ABS and PMMA
Mounting: wall mounting
Indication/Display: 1 LED
Ambient temperature: 0 ... 40 °C
Dimensions: Ø 130 mm, depth 45 mm
Max. frequency: 5 Hz
Protection type: Protection type: IP 20, with insulation IP 22 IEC 60529

The RESOL STA-W is designed for the connection to all controllers listed in the product catalogue (except for the DeltaSol® A/AX)

The number of VBus^® accessories that can be connected to one controller depends on the sum of their current consumption and on the current supply of the controller VBus^®.
Device	Maximum current consumption
VBus^®/PWM interface adapter	6,5 mA
VBus^®/USB interface adapter	6,5 mA
VBus^®/LAN interface adapter	6,5 mA
Datalogger DL2	1,5 mA
Datalogger DL3	VBus® 1-5: 10 mA VBus® 6: 0.5 mA
Smart Display SD3	17,5 mA
GA3 Large Display	1 mA
AM1 alarm module	16,5 mA
HKM3	1 mA
EM	1 mA
STA-W	12 mA