IAI America XSEL-S - Manual (Page 48)

Chapter 3 Operation (Construction for Network)
42
IA Net
XSEL-R/S
3.2.1 Setting of Parameter in Common
The following settings must be established whenever IA Net is used.
[Setting 1: Setting of Top Occupied Station Number]
In I/O Parameter No.602, set the lowest occupied station number (settable range from 0 to 63)
that the controller occupies.
Shown below is an example for setting (when connecting four units of XSEL).
Shared Memory Area
Station No. 0 1 2 3 4 5 6 7 8 9 10 11
··
61 62 63
··
[Caution in Setting]
1 When setting the top occupied station number, do not attempt to duplicate the number
with another device. In IA Net, the specific XSEL controller units having duplicate
station numbers can not be detected. In case there is a duplication, an error “211/552:
IA Net Link Error” be issued.
2 Configuring spare station numbers into the network topology is advisable.When it is
required, set in I/O Parameter No.605 and 606 as the station not to be used in “IA Net
All Connected Station Patterns (31-00)/(63-32)”.
3 An extension I/O unit occupies four stations with multiples of 4 as the top station
number.
The unit numbers are determined by the shared station numbers. Set them on the
rotary switches.
Pay attention not to duplicate the station number when assigning in the shared
memory.
XSEL 1st Unit
(4 stations occupied)
XSEL 2nd Unit
(2 stations occupied)
XSEL 3rd Unit
(3 stations occupied)
XSEL 4th Unit
(1 station occupied)
No.602=0 No.602=6
No.602=4 No.602=11
Not used Not used