User guide

eWON 500-2001-4001-4002 User Guide - IO Servers Configuration
eWON 500®2001®4001®4002® Version 4_3_0 - User Guide - 10/5/05 - ©ACT'L sa - Page 94
6.6.3 Tag name convention
The Item Name can contain the PLC address where the value is polled, or not. If address is not specified at the Tag level,
the global topic address will be used.
6.6.3.1 Value Name
6.6.3.1.1 General Description
The general format of value names for data from SLC-500 controllers matches the naming convention used by the programming software.
The format is shown below (The parts of the name shown between square brackets are optional).
General Value Name Format: X: [file] element [.field] [/bit]
X: Identifies the file type. The table below summarizes the valid file types, default file number for each type and the fields allowed.
• File: File number must be 0-255 decimal
• Element: Element number within the file
• Field: Valid only for Counter, Timer and Control files
• /bit: Valid for all types except Floating
IO Server configuration
IO Server Name DF1
Topic Name
A
B
C
Item Name
ValueName, DeviceType-DeviceAddress
Device Type and Address are defined
Tag by Tag
Only device Type SLC500 is supported
Device Address is a number between 0..254
ValueName Topic PLC Address is used
Table 65: DF1 IO server configuration
X File Type Default file Number Fields
O Output 0
I Input 1
S Status 2
B Binary 3
T Timer 4 .PRE, .ACC, .EN, .TT, .DN
C Counter 5 .PRE, .ACC, .CU, .CD, .DN, .OV, .UN, .UA
R Control 6 .LEN, .POS, .EN, .DN, .ER, .UL, .IN, .FD
N Integer 7
F Floating 8
A ASCII none
Table 66: value names for DF1 addresses