« FC4A M
ICRO
S
MART
U
SER
’
S
M
ANUAL
»
29-1
29: T
ROUBLESHOOTING
Introduction
This chapter describes the procedures to determine the cause of trouble and actions to be taken when any trouble occurs
while operating the
MicroSmart
.
The
MicroSmart
has self-diagnostic functions to prevent the spread of troubles if any trouble should occur. In case of any
trouble, follow the troubleshooting procedures to determine the cause and to correct the error.
Errors are checked in various stages. While editing a user program on
WindLDR
, incorrect operands and other data are
rejected. User program syntax errors are found during compilation on
WindLDR
. When an incorrect program is down-
loaded to the
MicroSmart
, user program syntax errors are still checked. Errors are also checked at starting and during
operation of the
MicroSmart
. When an error occurs, the error is reported by turning on the ERR LED on the
MicroSmart
and an error message can be viewed on
WindLDR
. Error codes can also be read on the HMI module.
ERR LED
The
MicroSmart
CPU module has an error indicator ERR.
When an error occurs in the
MicroSmart
CPU module, the ERR
LED is lit. See the trouble shooting diagrams on page 29-10.
For error causes to turn on the ERR LED, see page 29-4.
Reading Error Data
When any error occurs during the
MicroSmart
operation, the error codes and messages can be read out using
WindLDR
on
a computer.
Monitoring WindLDR
1.
From the
WindLDR
menu bar, select
Online
>
Monitor
. The monitor mode is enabled.
2.
From the
WindLDR
menu bar, select
Online
>
PLC Status
. The PLC Status dialog box appears.
The general error code stored in special data register D8005 is displayed in the error code box.
P
W
R
R
U
N
E
R
R
S
T
A
T
0 1 2 3 4 5
7 10
6
11
0 1 2 3 4 5 6 7 10 11 12 13 14 15
OUT
IN
ERR LED
Error Code Box
D8005 (general error code)
value in hexadecimal
Details Button
System Program Version
D8029
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 ...