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Siemens Standard application AHU CE1P3977en_02
Building Technologies Communication 01.02.2010
− Active − With bus terminating resistor.
Reset required !!
−
− Execute
As a matter of principle, the controller must be
set after changing the settings to assume the
data.
For detailed information on the Modbus interface (all transmission values, commis-
sioning, function), see document CB1P3934.
Unit > System overview > Communication > Modbus > TCP/IP
Unit > System overview > Communication > TCP/IP > Change settings
Parameter Range Function
IP xxx.xxx.xxx.xxx. IP address on the bus.
Mask xxx.xxx.xxx.xxx. Subnet mask on the bus.
Gateway xxx.xxx.xxx.xxx. Gateway
DHCP − Passive
– Active
− Fixed IP address (must be entered).
− Automatic address assigned via DHCP server.
Reset required !!
−
− Execute
− As a matter of principle, the controller must be
set after changing the settings to assume the
data.
User name − Enter user name on the network.
Password − Enter user name on the network.
9.2.2 Commission Modbus module
Participating devices
− Climatix controller POL6XX.
− Modbus module POL902.
P3934Z04
Modbus RTU
POL902 / POL6XX
HMI
PC
SCOPE
Prerequisites for commissioning:
– Working application (e.g. standard AHU application) loaded on the Climatix con-
troller.
– Corresponding mapping file (OBH.bin) loaded to provide connections to Mod-
bus.
– Level 4 (password 2000).
Proceed as follows to configure the Modbus module and connect to the Modbus
bus:
Step Action
1 Controller OFF.
2 Connect Modbus module to controller using plug connection.
3
Connect Modbus bus cable to Modbus module (pins + and -, Ref for
GND).
Note
TCP/IP parameteriza-
tion
Devices
Prerequisites
Commission Modbus
module
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 121
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