Liquistation CSF22 MODBUS
®
-Guideline
Hauser
© Copyright Dez. 2011
15
Step 5
Step 6
Step 7
Step 8
Valid Modbus addresses are in the range from 1 to 247.
Step Description
Example
1
Enter Menue/Setup/General Settings
Press “Extended setup”
2
Press “Modbus”
3
Press “Settings”
4
Set Busaddress
Press “Bus address”
5
Enter and confirm Bus address “88”
6
Set Transmission Mode
Enter to select Transmission Mode
7
Set Baudrate
Enter to select Baudrate
8
Set Parity
Enter to select Parity
9
Save Settings
Press softkey “Save” to save the selected settings
Note:
The Modbus settings are switched active only after being saved.
5.3.
Communication control („Watchdog“)
Does the device not receive a Modbus telegram within the configured time out, the diagnostic message S969 will
be set.
The time out can be set to values between “0” (deactivated) to 999 seconds.
Path: Menu/Setup/General settings/Extended setup /Modbus/Settings
5.4.
Configuration of the process data for Modbus
Via Modbus communication the device can send several device variables or receive Modbus variables. The device
variables may be analog or digital values from the device or send to the device. The commissioning of the data for
the cyclic data exchange requires the steps selection of the device variable and selection of the data source. The
following number of device variables are available:
Abbre-
viation
Qty
Name
Description
Example
AI
16
Analog Input
Analog value from the device
Flow measured by binary input
or analog current input
DI
8
Digital Input
digital value from the device
Read limit switch
AO
4
Analog Output
Analog value into the device
Flow measured by external MID
DO
8
Digital Output
digital value into the device
Start sampling
