28: AS-INTERFACE MASTER COMMUNICATION
« FC4A MICROSMART USER’S MANUAL » 28-19
I/O Data for AS-Interface Master Module
The AS-Interface master module can process digital I/O data and analog I/O data. Digital I/O data can be a maximum of 4
digital inputs and 4 digital outputs per slave. Analog I/O data consists of 4 channels of 16-bit analog input or output data
per slave.
Digital I/O Data of Standard Slaves and Expansion Slaves
The digital I/O data for standard slaves and A/B slaves (sensors and actuators) on the AS-Interface bus are allocated to the
AS-Interface internal relays in the ascending order starting with slave 0. The input data image (IDI) for each slave is allo-
cated to M1300 through M1617, and the output data image (ODI) is allocated to M1620 through M1937. For example, in
the case of slave 3A, the input data is allocated to M1314 (DI0) through M1317 (DI3), and the output data is allocated to
M1634 (DO0) through M1637 (DO3).
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Digital Input Data Image
Input Data Image (IDI)
Data Format
7
(DI3)
6
(DI2)
5
(DI1)
4
(DI0)
3
(DI3)
2
(DI2)
1
(DI1)
0
(DI0)
M1300 Byte 0 Slave 1(A) (Slave 0)
M1310 Byte 1 Slave 3(A) Slave 2(A)
M1320 Byte 2 Slave 5(A) Slave 4(A)
M1330 Byte 3 Slave 7(A) Slave 6(A)
M1340 Byte 4 Slave 9(A) Slave 8(A)
M1350 Byte 5 Slave 11(A) Slave 10(A)
M1360 Byte 6 Slave 13(A) Slave 12(A)
M1370 Byte 7 Slave 15(A) Slave 14(A)
M1380 Byte 8 Slave 17(A) Slave 16(A)
M1390 Byte 9 Slave 19(A) Slave 18(A)
M1400 Byte 10 Slave 21(A) Slave 20(A)
M1410 Byte 11 Slave 23(A) Slave 22(A)
M1420 Byte 12 Slave 25(A) Slave 24(A)
M1430 Byte 13 Slave 27(A) Slave 26(A)
M1440 Byte 14 Slave 29(A) Slave 28(A)
M1450 Byte 15 Slave 31(A) Slave 30(A)
M1460 Byte 16 Slave 1B —
M1470 Byte 17 Slave 3B Slave 2B
M1480 Byte 18 Slave 5B Slave 4B
M1490 Byte 19 Slave 7B Slave 6B
M1500 Byte 20 Slave 9B Slave 8B
M1510 Byte 21 Slave 11B Slave 10B
M1520 Byte 22 Slave 13B Slave 12B
M1530 Byte 23 Slave 15B Slave 14B
M1540 Byte 24 Slave 17B Slave 16B
M1550 Byte 25 Slave 19B Slave 18B
M1560 Byte 26 Slave 21B Slave 20B
M1570 Byte 27 Slave 23B Slave 22B
M1580 Byte 28 Slave 25B Slave 24B
M1590 Byte 29 Slave 27B Slave 26B
M1600 Byte 30 Slave 29B Slave 28B
M1610 Byte 31 Slave 31B Slave 30B