407
Serial Communications
Section 8-3
Error Codes
The following error codes are stored in an allocated DM Area word when an
error occurs in Modbus-RTU Easy Master function execution.
D32250
D32350
00 to 07 Response Slave address (00 to F7 hex)
08 to 15
Reserved (Always 00.)
D32251
D32351
00 to 07
Function code
08 to 15
Reserved
D32252
D32352
00 to 07
Error code
08 to 15
Reserved (Always 00.)
D32253
D32353
00 to 15
Number of response bytes
(0000 to 03EA hex)
D32254 to
D32299
D32354 to
D32399
00 to 15
Response data
(92 bytes maximum)
Words
Bits
Contents
Serial port 1
on EM-type
CPU Unit
Serial port 2
on EM-type
CPU Unit
or
Serial port 1
on EL-type
CPU Unit
Code
Name
Description
0x00
Normal end
Not an error.
0x01
Illegal address
The slave address specified in the parameter
is illegal (248 or higher).
0x02
Illegal function code
The function code specified in the parameter is
illegal.
0x03
Data length overflow
There are more than 94 data bytes.
0x04
Serial communica-
tions mode error
The Modbus-RTU Easy Master function was
executed when the serial communications
mode was not the Serial Gateway Mode.
0x80
Response timeout
A response was not received from the Servo.
0x81
Parity error
A parity error occurred.
0x82
Framing error
A framing error occurred.
0x83
Overrun error
An overrun error occurred.
0x84
CRC error
A CRC error occurred.
0x85
Incorrect confirmation
address
The slave address in the response is differ-
ence from the one in the request.
0x86
Incorrect confirmation
function code
The function code in the response is difference
from the one in the request.
0x87
Response size over-
flow
The response frame is larger than the storage
area (92 bytes).
0x88
Exception response
An exception response was received from the
slave.
0x89
Service being exe-
cuted
A service is already being executed (reception
traffic congestion).
0x8A
Execution canceled
Executing the service has been canceled.
0x8F
Other error
Other FINS response code was received.
Summary of Contents for CP1L-EL20DR-D
Page 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Page 4: ...iv...
Page 10: ...x...
Page 22: ...xxii...
Page 34: ...xxxiv Software Licenses and Copyrights 7...
Page 192: ...158 Trial Operation and Debugging Section 5 3...
Page 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Page 666: ...632 Trouble Shooting Section 11 7...
Page 696: ...662 Standard Models Appendix A...
Page 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Page 836: ...802 PLC Setup Appendix G...
Page 838: ...804 TCP Status Transitions Appendix H...
Page 840: ...806 Ethernet Network Parameters Appendix I...
Page 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Page 844: ...810 Ethernet Specifications Appendix K...
Page 851: ...Index 817 work words 118 write protection 447...
Page 852: ...818 Index...
Page 854: ...820 Revision History...
Page 855: ......