IDEC MicroSmart AS-i - Manual (Page 43)

6: AS-I NTERFACE O PERANDS
6-12 M ICRO S MART AS-I NTERFACE M ASTER M ODULE U SER ’ S M ANUAL
HW 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 depend on the operator posi-
tion as shown below.
5. X3: The input data from 3-position selector, key selector, and illuminated selector switches depend on the operator posi-
tion as shown below.
As shown in the table and figure, 3-position selector, key
selector, and illuminated selector switches use two communi-
cation blocks. Each communication block must have a unique
address, therefore the 3-position selectors require 2 slave
addresses.
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 HW Series
Slave Unit
Used I/O
Communication
Block Mounting
Position
Input Data
(slave send data)
Output Data
(slave receive data)
DI3 DI2 DI1 DI0 DO3 DO2 DO1 DO0
Pushbutton 1 in ➁ 0 X1 1 1 * — — —
Pilot light 1 out ➁ 0 0 1 1 * — — X1
Illuminated pushbutton 1 in/1 out ➁ 0 X1 1 1 * — — X1
Selector, Key selector: 2-position 1 in ➁ 0 X2 1 1 * — — —
Selector, Key selector: 3-position
1 in ➀ 0 X3 1 1 * — — —
1 in ➁ 0 X3 1 1 * — — —
Illuminated selector: 2-position 1 in/1 out ➁ 0 X2 1 1 * — — X1
Illuminated selector: 3-position
1 in ➀ 0 X3 1 1 * — — —
1 in/1 out ➁ 0 X3 1 1 * — — X1
2-position Operator
Operator Position 1 2
DI2 0 1
3-position Operator
Operator Position 1 0 2
Communication
Block Mounting
Position
Input Data
Bit
➀ DI2 1 0 0
➁ DI2 0 0 1
1 2
Selector
Left Right
Address Marking Area
Mounting
Position
➀
Mounting
Position
➁
AS-i (–)
AS-i (–) AS-i (+)
AS-i (+)
Communication Block Mounting Position
(Rear View)
On 3-position selector, key selector, and illuminated
selector switches, communication blocks ➀ and ➁
are mounted in positions shown above.
1 2
0
Selector
Left Right
Center