Flexitron Webdyn WebdynModbus - Page 3

contact@webdyn.com | webdyn.com
V1.0 subject to changes | Webdyn © by Flexitron Group
3
6.3 Setting the Unit Date and Time ............................................................................................... 27
6.4 Connection Modes and Period ................................................................................................ 28
6.4.1 Manual Connection .................................................................................................... 29
6.4.2 Periodic Automatic Connection ................................................................................. 29
6.4.3 Automatic Connection at Fixed Times ....................................................................... 30
6.4.4 Automatic Connection on Data Capture ................................................................... 31
6.4.5 Keeping the Connection Open .................................................................................. 32
6.4.6 Automatic Connexion on Alarm ................................................................................. 32
6.4.7 Optimizing the Connection ......................................................................................... 33
6.5 Acquisition Period and Time Slots........................................................................................... 33
7. Modbus Device Management .............................................................................................................. 35
7.1 ................................................................................................................................................... Bus
Wiring ............................................................................................................................................... 35
7.2 Conguring and Declaring Modbus Slave Devices ................................................................. 36
7.3 Structure of a Modbus Denition File ..................................................................................... 39
7.4 Checking that Modbus devices are operating correctly ......................................................... 45
7.5 Modbus Data ............................................................................................................................ 45
7.5.1 Filename Syntax .......................................................................................................... 45
7.5.2 Data Format ................................................................................................................ 46
7.5.3 Example ....................................................................................................................... 48
7.6 Modbus Alarms ......................................................................................................................... 51
7.6.1 Alarm Filename Syntax ............................................................................................... 51
7.6.2 Format of Alarms ........................................................................................................ 52
7.6.3 Example of Alarm Files ............................................................................................... 52
7.7 Writing Modbus Variables via a Command File ...................................................................... 54
8. Updating the Unit .................................................................................................................................. 55
8.1 Updating via the Web Server ................................................................................................... 55
8.2 Updating Remotely via the FTP Server ................................................................................... 56
9. Using Web Services .............................................................................................................................. 57
9.1 Enabling and Conguring ......................................................................................................... 57
9.2 Format of HTTP Requests ........................................................................................................ 57
9.3 Examples of Web Services Requests ...................................................................................... 61