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Siemens Standard application AHU CE1P3977en_02
Building Technologies Communication 01.02.2010
Parameter Range Function
Software version Module software version.
Device ID. Module internal device ID.
Modules Module type.
Use default − Passive
− Active
Reset parameterization to default values.
Reset required !!
−
− Execute
As a matter of principle, the controller must be
set after changing the settings to assume the
data.
Main Index > System overview > Communication > Comm module overview >
Module[x] Modbus > Settings channel 0 / 1
Main Index > System overview > Communication > Modbus > Module[x]
Modbus
Parameter Range Function
Enable. − Passive
− Active
Modbus channel 1 only: Enable Modbus channel
1.
Slave address Set address for the Modbus connection on the
bus.
Baud rate
Baud rate (Forts.)
− 2400
− 4800
− 9600
− 19200
− 38400
Transmission rate settings per the Modbus.
Stop bits
− One
− Two
Displays number of stop bits:
− One stop bit.
− Two stop bits.
Parity − None
− Even
− Odd
Parity setting.
Response timeout 0…3600 [sec] Settings access time for master.
The master must undertake read access within
this period, otherwise an alarm is triggered (this
function is not yet fully implemented).
Termination
− Passive
− Active
A RS485 topology must always be ended using
wave resistors.
− Terminating resistor disabled.
− Terminating resistor enabled.
Reset required !!
−
− Execute
As a matter of principle, the controller must be
set after changing the settings to assume the
data.
Parameterize Modbus
channels
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 123
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