Stulz Air Booster 2 - Modbus RTU Data Points and Registers

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AIR BOOSTER 2
© STULZ SpA . – all rights reserved EN/10.2018/IT30I
5.6. Modbus RTU datapoint
Digital data point
Modbus -
Address (hex)
Modbus-
Address (Dec)
Description
Modbus
range
Mapped
meaning
BMS-
Access
Modbus-
Function
210 528 High Pressure 0/1 ok/error r 1
211 529 Fan Block 0/1 off/on r 1
212 530 Fan Block serious alarm 0/1 no alarm / alarm r 1
213 531 Damper Block 0/1 off/on r 1
214 532 Motor Block 0/1 off/on r 1
200 512 Device ON FF00 (65280) on w 5
200 512 Device OFF 0000 (0) off w 5
203 515 Keyboard LOCK FF00 (65280) locked (on) w 5
203 515 Keyboard UNLOCK 0000 (0) unlocked (off) w 5
204 516 Alarm mute FF00 (65280) muted (on) w 5
Analog data point
Modbus -
Address (hex)
Modbus-
Address (Dec)
Description Mapped meaning BMS-Access Mod bus- Func tion
100 256 Probe 1 °C/°F r 3
101 257 Probe 2 °C/°F r 3
102 258 Probe 3 °C/°F r 3
103 259 Average Active Probe Value °C/°F r 3
104 260 Max active probe value °C/°F r 3
105 261 Probe 4 bar/Pa r 3
106 262 Fan speed % r 3
107 263 Damper position % r 3
110 272 Min Fan Speed % r 3
111 273 Max Fan Speed % r 3
112 274 Min Damper Value % r 3
113 275 Max Damper Value % r 3
114 276 Device On h r 3
300 768 SetPoint Temperature °C/°F rw (3)6
301 769 SetPoint Pressure bar/Pa rw (3)6
BMSAccess: r= read
w= write
Modbus- Function: 01: Read Coil (Digital Output Registers)
02: Read Digital Input Status Function
03: Read Holding Registers
04: Read Input Registers
05: Write Single Coil
06: Write Single Holding Register
The following parameters may have to be adjusted on the controller of the unit:
• Modbus-Address: Adr
• Baud Rate selection: br