IDEC MICROSmart FC5A Series, User Manual

Page: 304 / 343

24: AS ‐ I
NTERFACE
M
ASTER
C
OMMUNICATION
24 ‐ 32 FC5A M
ICRO
S
MART
U
SER
’
S
M
ANUAL
FC9Y ‐ B1273
Using Two AS ‐ Interface Master Modules
The FC5A MicroSmart CPU modules can be used with one or two AS ‐ Interface master modules. For the first AS ‐ Interface
master module, which is mounted closer to the CPU module, the AS ‐ Interface objects can be accessed through the AS ‐
Interface devices, such as internal relays M1300 through M1997 and data registers D1700 through D1999 as shown on
page 24 ‐ 19.
Accessing AS ‐ Interface Objects for AS ‐ Interface Master Module 2
The I/O data and parameters of slaves on the AS ‐ Interface bus, the status of the AS ‐ Interface bus, and various list infor ‐
mation of the slaves are allocated to the AS ‐ Interface master module EEPROM. This information is called AS ‐ Interface
objects. The AS ‐ Interface objects for the second AS ‐ Interface master module can be assigned to any internal relays and
data registers and accessed using RUNA or STPA instructions.
The data addresses for AS ‐ Interface master module 2 are shown in the table below.
*1: The time required for the CPU module to update the device data for RUNA or STPA instruction. For example, when reading IDI,
ODI, status information, LAS, LDS, and LPF continuously in every scan, the scan time increases by 10 ms.
*2: These AS ‐ Interface device data can be read or written using WindLDR. For details, see page 24 ‐ 34.

While performing master configuration or slave monitoring for AS ‐ Interface master module 2 using
WindLDR , RUNA and STPA instructions for AS ‐ Interface master module 2 cannot be executed.

ASI commands cannot be used for AS ‐ Interface master module 2. Use pushbuttons PB1 and PB2 on
the AS ‐ Interface master module to go to Normal Protected Mode, Normal Protected Offline, and
Normal Protected Data Exchange Off.

AS ‐ Interface master module 2 does not have the function to change ID1 code of slave 1 and
enable/disable auto addressing. Auto addressing is always enabled.
AS ‐ Interface Master Module 2
Precessing
Time (ms)
*1
Read/Write
AS ‐ Interface Master Module EEPROM
Device Address
Data Size
(bytes)
AS ‐ Interface Object
0 32 3.0 R Digital input (IDI: input data image)
3 32 3.0 W Digital output (ODI: output data image)
2 6 1.0 R Status information
1 64 5.2 R Analog input
4 64 5.2 W Analog output
9 24 3.0 R
List of active slaves (LAS)
List of detected slaves (LDS)
List of peripheral fault slaves (LPF)
— — — — List of projected slaves (LPS)
*2
— — — — Configuration data image A (CDI)
*2
— — — — Configuration data image B (CDI)
*2
— — — — Permanent configuration data A (PCD)
*2
— — — — Permanent configuration data B (PCD)
*2
— — — — Parameter image (PI)
*2
— — — — Permanent parameter (PP)
*2
— — — — Slave 0 ID1 code
— — — — ASI command description
Caution