Ia net, Xsel-r/s – IAI America XSEL-S User Manual
Page 55

Chapter 3 Operation (Construction for Network)
49
IA Net
XSEL-R/S
[Setting 3: Input and Output Ports Assignment for Extension I/O Unit]
No.
Parameter Name
(I/O parameters)
Initial Value
(Reference)
Input Range
Remarks
1 I/O Port Allocation Type
1
0 to 1
0 : Fixed Allocation (recommended)
1 : Automatic Allocation
The priority in order for extension input
and output ports assignment at automatic
assignment is as shown below:
(1) Network I/F Module 2
(2) Extension I/O Unit
(3) IA Net (for communication among
controllers)
Assignment is applied to extension input
and output ports.
Input Port No.1000 to 3999
Output Port No.4000 to 6999
…
…
…
…
…
707
Extension Input Port Start
Number at Extension I/O Unit
Slot 1 Fixed Assignment
-1
-1 to 3999
1000+(Multiples of 16)
(Setting is invalid if set to -1)
708
Extension Output Port Start
Number at Extension I/O Unit
Slot 1 Fixed Assignment
-1
-1 to 6999
4000+(Multiples of 16)
(Setting is invalid if set to -1)
709
Extension Input Port Start
Number at Extension I/O Unit
Slot 2 Fixed Assignment
-1
-1 to 3999
1000+(Multiples of 16)
(Setting is invalid if set to -1)
710
Extension Output Port Start
Number at Extension I/O Unit
Slot 2 Fixed Assignment
-1
-1 to 6999
4000+(Multiples of 16)
(Setting is invalid if set to -1)
711
Extension Input Port Start
Number at Extension I/O Unit
Slot 3 Fixed Assignment
-1
-1 to 3999
1000+(Multiples of 16)
(Setting is invalid if set to -1)
712
Extension Output Port Start
Number at Extension I/O Unit
Slot 3 Fixed Assignment
-1
-1 to 6999
4000+(Multiples of 16)
(Setting is invalid if set to -1)
713
Extension Input Port Start
Number at Extension I/O Unit
Slot 4 Fixed Assignment
-1
-1 to 3999
1000+(Multiples of 16)
(Setting is invalid if set to -1)
714
Extension Output Port Start
Number at Extension I/O Unit
Slot 4 Fixed Assignment
-1
-1 to 6999
4000+(Multiples of 16)
(Setting is invalid if set to -1)
715 Extension I/O Unit Error
Monitoring
0
1
0 : No Monitoring
1 : Monitoring
When 1 (Automatic Assignment) is set in I/O Parameter No.1, the extension input and output
ports are assigned from the smaller number in the order described below:
1) Number of used ports in Network I/F Module 2 (CC-Link, DeviceNet, etc.)
2) Number of used ports in the Extension I/O Unit
3) Number of used ports in IA Net (for I/O communication among controllers)
When 0 (fixed assignment) is set in I/O Parameter No.1, set the assignment start port number
for each of input and output to I/O Parameters No.707 to 714 in every slot of each extension I/O
unit to be used. Set to -1 (invalid) to the slots not to be used.
Note It is recommended to set to 0 (Fixed Assignment) in I/O Parameter No. 1.
Caution 1) A PIO board mounted in an Extension Unit I/O slot occupies 1 station.
2) When using only the input ports, it is necessary to occupy one station no matter
of the number of slots.
3) The number of stations that can be occupied by one unit of XSEL controller on
the IA Net network is four at the maximum. When using together with
communication among controllers, be careful not to exceed four stations.
(Number of stations used for I/O communication among controllers + Number
of stations used for extension I/O units 4)