25: D
ATA
L
INK
C
OMMUNICATION
« FC4A M
ICRO
S
MART
U
SER
’
S
M
ANUAL
»
25-11
Operating Procedure for Data Link System
To set up and use a data link system, complete the following steps:
1.
Connect the
MicroSmart
CPU modules at the master station and all slave stations as illustrated on page 25-2.
2.
Create user programs for the master and slave stations. Different programs are used for the master and slave stations.
3.
Using
WindLDR
, access
Configure
>
Function Area Settings
>
Communication
and make settings for the master and
slave stations. For programming
WindLDR
4.
Download the user programs to the master and slave stations.
5.
To start data link communication, power up slave stations first, and power up the master station at least 1 second later.
Monitor the data registers used for data link at the master and slave stations.
Note:
To enable data link communication, power up slave stations first. If a slave station is powered up later than or at the
same time with the master station, the master station does not recognize the slave station. To make the master station rec-
ognize the slave station in this case, turn on special internal relay M8007 (data link communication initialize flag) at the
master station (see page 25-6), or in
WindLDR
select
Online
>
Monitor
, followed by
Online
>
PLC Status
and click the
Ini-
tialize Data Link
button.
Data Link Initialization Program
If the master station does not recognize the slave station when the master station is powered up, include the following pro-
gram into the user program for the master station.
Initialize Data Link
Initializes data link
communication
M8120
M8007
M8120 is the initialize pulse special internal relay.
M8007 is the data link communication initialize flag.
When the master station CPU module star ts to run, M8120 turns on M8007 for one scan to
initialize the data link communication. The master station will recognize the slave station.
Summary of Contents for FC4A-C10R2
Page 1: ...FC4A SERIES Micro Programmable Logic Controller User s Manual FC9Y B812 ...
Page 6: ...PREFACE 4 FC4A MICROSMART USER S MANUAL ...
Page 94: ...2 MODULE SPECIFICATIONS 2 74 FC4A MICROSMART USER S MANUAL ...
Page 184: ...6 ALLOCATION NUMBERS 6 20 FC4A MICROSMART USER S MANUAL ...
Page 218: ...8 ADVANCED INSTRUCTIONS 8 8 FC4A MICROSMART USER S MANUAL ...
Page 240: ...11 BINARY ARITHMETIC INSTRUCTIONS 11 8 FC4A MICROSMART USER S MANUAL ...
Page 244: ...12 BOOLEAN COMPUTATION INSTRUCTIONS 12 4 FC4A MICROSMART USER S MANUAL ...
Page 252: ...13 SHIFT ROTATE INSTRUCTIONS 13 8 FC4A MICROSMART USER S MANUAL ...
Page 274: ...15 WEEK PROGRAMMER INSTRUCTIONS 15 8 FC4A MICROSMART USER S MANUAL ...
Page 378: ...22 DUAL TEACHING TIMER INSTRUCTIONS 22 4 FC4A MICROSMART USER S MANUAL ...
Page 386: ...23 INTELLIGENT MODULE ACCESS INSTRUCTIONS 23 8 FC4A MICROSMART USER S MANUAL ...
Page 408: ...24 ANALOG I O CONTROL 24 22 FC4A MICROSMART USER S MANUAL ...
Page 426: ...26 COMPUTER LINK COMMUNICATION 26 6 FC4A MICROSMART USER S MANUAL ...