User Manual

Commissioning
Address
2
A6V11841988_en
--_a 9 | 19
2 Commissioning
2.1 Address
2.1.1 DIP switches (Climatix and other controllers)
Use DIP switches to adjust the Modbus address and for termination.
● The DIP-switches have priority over register 4x0764 (Modbus address).
● The Modbus address (register 4x0764) is valid as soon as all DIP switches are
on '0'.
● Changes to DIP switches are effective after 5 seconds.
Modbus addressing
The DIP switches allow addresses between 1…247 (Modbus specification).
The following example shows Modbus address '3':
Modbus termination
● The termination is done with 120 Ω + 1nF.
● The termination must be done manually, even if the addressing is done with
"On-event addressing (Climatix controllers) [➙ 9]".
2.1.2 On-event addressing (Climatix controllers)
On-event addressing works together with Climatix controllers.
On-event addressing performs several functions that otherwise would have to be
done 'manually':
Workflow
 The QBM3700.. sensor is wired and connected to the controller via Modbus.
 The DIPs 1…8 (addressing DIPs) are set to '0'.
 The on-event addressing functionality is configured in the application.
 The necessary functional block is therefore available in the CAS library. The
CAS library online help contains further engineering documentation.
1 2 3 4 5 6 7 8 9
1
2
1: On
0: Off
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9
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2
1: On
0: Off
128 64 32 16 8 4 2 1
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1: On
0: Off