System information

General Reference Guide eWON Configuration
RG-001-0-EN ver 1.5 eWON® - 20/03/2009 - ©ACT'L sa Page 72
Control Description
Tag general properties
Tag name
Name of the Tag
The name of the Tag will be used for any reference to the Tag when using the export function or the script
function.
-This Information will be included in the alarm email
Note: the Tag’s name cannot contain:
spaces
$ character
" characters
Maximum length for a Tag’s name is 64 characters
Tag Description
A free text to describe the meaning of the Tag. Useful to clarify the meaning of an alarm.
-This Information will be included in the email that you can send on alarm.
Table 43: Tag’s general properties controls
I/O Server Setup
Server Name
The IO server name is the Data source of the Tag name. Six data sources are available:
‘eWON’ for all the eWON internal IO (please refer to chapter “The eWON IO Servers” on page 85)
‘MODBUS’ for IO located on the extension bus (please refer to chapter “Modbus IO server” on page 88)
‘MEM’ for virtual IO used by script function (please refer to chapter “MEM IO Server” on page 124)
‘NETMPI’ for IO located on the extension bus (please refer to chapter “NETMPI IO Server” on page 94)
‘UNITE’ for IO located on the extension bus (please refer to chapter “UNITE IO Server” on page 96)
‘DF1' for IO located on the extension bus (please refer to chapter “DF1 IO Server” on page 100)
‘FINS' for IO located on the extension bus (please refer to chapter “FINS IO Server” on page 106)
‘S5-AS511' for IO located on the extension bus (please refer to chapter “S5-AS511 IO Server” on
page 110)
‘S73&400’ for IO located on an MPI bus (please refer to chapter “S7-300&400 (MPI/Profibus - ISOTCP)”
on page 125)
‘S7200’ for IO located on an PPI bus (please refer to chapter “S7-200 (PPI - ISOTCP)” on page 130)
Topic Name
Used to apply a common configuration to several Tags.
Please refer to chapter “Tag definition: Introduction” on page 67
Address
Please refer to chapter “Tag definition: Introduction” on page 67
Note: for memory Tag (MEM IO server) this field can be left empty. Although when editing a memory Tag,
the Tag Name will be found here, this field is insignificant.
Type
Defines the Tag name type: Analog or Boolean. Analog enables the Tag to take float values coded on 4
bytes.
Boolean only return value 0 or 1. If the IO server returns a value equal to 0, the Boolean value is 0. If the
IO server returns a value different from 0 the output value is 1.
Force Read Only
Allows the disabling of the Update function in the View IO page. This is useful if you want to monitor a
read/write Tag. The Tag is still read/write for BASIC operations.
eWON value
Defines the offset and scale factor to be applied to the IO value coming from the server. The offset and
scales are float values and negative values are accepted. The Tag value will be: TAGval = IOSERVERval
* scale + offset.
Table 44: IO server configuration controls