IDEC MicroSmart AS-i - Manual (Page 42)

6: AS-I NTERFACE O PERANDS
M ICRO S MART AS-I NTERFACE M ASTER M ODULE U SER ’ S M ANUAL 6-11
SwitchNet Data I/O Port
SwitchNet control units can be used as slaves in the AS-Interface network and are available in ø16mm L6 series and
ø22mm HW series. Input signals to the
MicroSmart AS-Interface master module are read to internal relays allocated to
each input point designated by a slave number and a DI number. Similarly, output signals from the MicroSmart AS-Inter-
face master module are written to internal relays allocated to each output point designated by a slave number and a DO
number. When programming a ladder diagram for the
MicroSmart , use internal relays allocated to input signals and output
signals of SwitchNet control units.
L6 series and HW series SwitchNet control units have slightly different digital I/O data allocations.
L6 Series Digital I/O Data Allocation
Input data is sent from slaves to the AS-Interface master. Output data is sent from the AS-Interface master to slaves.
Notes:
1. ∗ The AS-Interface master uses bit DO3 for addressing A/B slaves.
2. In the above table, bits marked with X1, X2, and X3 are used for SwitchNet I/O data.
3. X1: When pushbutton is pressed, input data is 1 (on). When not pressed, input data is 0 (off). When output data is 1
(on), LED is on. When output data is 0 (off), LED is off.
4. X2: The input data from 2-position selector, key selector, and illuminated selector switches and 2-position lever switches
depend on the operator position as shown below.
5. X3: The input data from 3-position selector, key selector, and illuminated selector switches and 3-position lever switches
depend on the operator position as shown below.
6. Unused input bits DI3 and DI2 are 0 (off), and unused input bits DI1 and DI0 are 1 (on). Slaves ignore unused output
data (—) sent from the master.
SwitchNet L6 Series
Slave Unit
Used I/O
Input Data
(slave send data)
Output Data
(slave receive data)
DI3 DI2 DI1 DI0 DO3 DO2 DO1 DO0
Pushbutton 1 in 0 X1 1 1 * — — —
Pilot light 1 out 0 0 1 1 * — — X1
Illuminated pushbutton 1 in/1 out 0 X1 1 1 * — — X1
Selector, Key selector, Lever: 2-position 1 in 0 X2 1 1 * — — —
Selector, Key selector, Lever: 3-position 2 in X3 X3 1 1 * — — —
Illuminated selector: 2-position 1 in/1 out 0 X2 1 1 * — — X1
Illuminated selector: 3-position 2 in/1 out X3 X3 1 1 * — — X1
2-position Operator
Operator Position 1 2
DI2 0 1
3-position Operator
Operator Position 1 0 2
DI3 0 0 1
DI2 1 0 0
1 2
Selector
Left Right 2
1
Up
Down
Lever
1 2
0
Selector
Left Right
Center 2
1
0
Up
Center
Down
Lever