28: AS-I
NTERFACE
M
ASTER
C
OMMUNICATION
28-18
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ICRO
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AS-Interface Operands
This chapter describes AS-Interface operands, or internal relays M1300 through M1997 and data registers D1700 through
D1999, assigned in the CPU module to control and monitor the AS-Interface bus, and provides detailed description about
internal relays allocated to SwitchNet™ control units for use as slaves in the AS-Interface network. Also describes ASI
commands used to update AS-Interface operands in the CPU module or to control the AS-Interface master module.
AS-Interface Operand Allocation Numbers
The I/O data and parameters of slaves on the AS-Interface bus, the status of the AS-Interface bus, and various list informa-
tion of the slaves are allocated to the AS-Interface master module EEPROM. This information is called AS-Interface
objects, which can be accessed through the AS-Interface operands. The allocation is shown in the table below.
*1: The time required to update the operand data. When using the AS-Inter face master module, the scan time increases by
a minimum of 10 ms.
*2: These AS-Inter face operand data can be read or written using WindLDR. For details, see page 28-30.
*3: The LPS, PCD, and PP are set and downloaded to a PLC using WindLDR. For details, see page 28-32.
*4: IDI (input data image), ODI (output data image)
*5: The analog I/O data is updated only when an analog slave is connected to the AS-Inter face bus.
Processing Time
AS-Interface internal relays for digital I/O and status infor-
mation, and data registers for LAS, LDS, LPF are updated
in every scan. Data registers for analog I/O operands are
also updated in every scan only when analog I/O are con-
nected to the AS-Interface bus. The processing times for
these AS-Interface operands are shown in the table above.
Other AS-Interface data registers are updated when an
ASI command is executed in the CPU module. For the
processing times of the ASI commands, see page 28-28.
MicroSmart CPU Module
Precessing
Time (msec)
*1
Read/
Write
AS-Interface Master Module EEPROM
Operand
Updated
Operand
Allocation No.
AS-Interface Object
AS-Interface
Internal
Relays
M1300-M1617
3.0
R
*2
Digital input (IDI)
*4
Ever y scan
M1620-M1937
3.0
W
*2
Digital output (ODI)
*4
M1940-M1997
1.0
R
Status information
AS-Interface
Data
Registers
D1700-D1731
5.2
R
Analog input
*5
D1732-D1763
5.2
W
Analog output
*5
D1764-D1767
1.0
R
*2
List of active slaves (LAS)
D1768-D1771
1.0
R
*2
List of detected slaves (LDS)
D1772-D1775
1.0
R
*2
List of peripheral fault slaves (LPF)
D1776-D1779
1.0
R/W
*2*3
List of projected slaves (LPS)
Each time ASI
command is
executed
D1780-D1843
10.4
R
*2
Configuration data image (CDI)
D1844-D1907
10.4
R/W
*2*3
Permanent configuration data (PCD)
D1908-D1923
3.0
R
*2
Parameter image (PI)
D1924-D1939
3.0
R/W
*2*3
Permanent parameter (PP)
D1940
0.7
R/W
Slave 0 ID1 code
D1941-D1945
—
R/W
For ASI command description
—
D1946-D1999
—
—
(reser ved)
—
MicroSmart CPU Module
Ladder
Processing
Other
Processing
AS-Inter face
Processing
Constantly
Updated Operands
M1300-M1997
ASI Command
D1941-D1945
ASI Command
AS-Interface
AS-Inter face Objects
IDI, ODI
Status Information
Analog I/O
LAS, LDS, LPF
LPS, CDI, PCD
PI, PP
Slave 0 ID1
D1776-D1940
Updated Operands
D1700-D1775
AS-Inter face Operands
Master Module
Содержание FC4A-C10R2
Страница 1: ...FC4A SERIES Micro Programmable Logic Controller User s Manual FC9Y B812 ...
Страница 6: ...PREFACE 4 FC4A MICROSMART USER S MANUAL ...
Страница 94: ...2 MODULE SPECIFICATIONS 2 74 FC4A MICROSMART USER S MANUAL ...
Страница 184: ...6 ALLOCATION NUMBERS 6 20 FC4A MICROSMART USER S MANUAL ...
Страница 218: ...8 ADVANCED INSTRUCTIONS 8 8 FC4A MICROSMART USER S MANUAL ...
Страница 240: ...11 BINARY ARITHMETIC INSTRUCTIONS 11 8 FC4A MICROSMART USER S MANUAL ...
Страница 244: ...12 BOOLEAN COMPUTATION INSTRUCTIONS 12 4 FC4A MICROSMART USER S MANUAL ...
Страница 252: ...13 SHIFT ROTATE INSTRUCTIONS 13 8 FC4A MICROSMART USER S MANUAL ...
Страница 274: ...15 WEEK PROGRAMMER INSTRUCTIONS 15 8 FC4A MICROSMART USER S MANUAL ...
Страница 378: ...22 DUAL TEACHING TIMER INSTRUCTIONS 22 4 FC4A MICROSMART USER S MANUAL ...
Страница 386: ...23 INTELLIGENT MODULE ACCESS INSTRUCTIONS 23 8 FC4A MICROSMART USER S MANUAL ...
Страница 408: ...24 ANALOG I O CONTROL 24 22 FC4A MICROSMART USER S MANUAL ...
Страница 426: ...26 COMPUTER LINK COMMUNICATION 26 6 FC4A MICROSMART USER S MANUAL ...