The following table lists the error codes (in 4-digit hexadecimal) and the contents of the errors. All error codes and detail codes are in hexadecimal.
Error code
Contents Detail code Correction Recorded
in code
(Hex) 1st byte (Hex) 2nd byte (Hex) in
EEPROM 0001 CPU Unit watchdog timer
error
00 00 Replace the CPU Unit. Yes
0002 CPU Unit service monitor error
Monitor time (ms) Check the environment settings.
Yes
0003 CPU Unit RAM error 01: Cyclic 02: Event 04: CPU bus link
00 Check the environment
settings.
Yes
0004 CPU Bus Unit ID number error
00 00 Check the I/O tables. Yes
0005 Unit number error Unit set value CPU Unit detected value
Check the unit number settings and recreate the I/O tables.
Yes
0006 CPU error Bit 11: Unit missing in registered I/O tables
Bit 12: Hard test number detected Bit 13: Illegal number detected Bit 14: Unit number duplicated
Check the unit number settings and recreate the I/O tables.
Yes
000E I/O bus error 00 00 Check the environment
settings.
Yes
000F CPU Unit initialization error Check the environment
settings.
Yes
0010 System capacity exceeded Yes
0011 CPU Unit initialization timeout
Check the environment settings.
Yes
Error
0012 CPU Unit memory error 01: Read error 02: Write error
01: Data link tables 02: Network parameters
Check the relevant settings. Yes
0013 CPU Unit write-protected parameters
03: Routing tables 04: System setup
Release write protection for the CPU Unit.
Yes
0101 Transmission failed; local node not in Network
Command block Bits 0 to 7:
Source node address Bits 8 to 14:
Refer to 9-1 Troubleshooting Using Indicators and place the local node into Network.
No
0103 Transmission failed; retry count exceeded
Using the SYSMAC LINK Support Software or FINS commands, run echoback test and check operating
environment if errors occur.
No
0104 Transmission failed;
maximum number of frames exceeded.
Check event status on the network. Reduce the number of events per communications cycle or increase the maximum number of network parameter frames.
No
0105 Transmission failed; node address incorrect
(1st byte: bits 8 to 15;
2nd byte, bits 0 to 7) Refer to the Installation Guide and check node address settings to be sure they are within range and unique.
No
0106 Transmission failed;
redundant node address
Correct node addresses so that they are unique within the same Network.
No
0107 Transmission failed;
destination node not in Network
Refer to 9-1 Troubleshooting Using Indicators and place destination node into Network.
No
0108 Unit missing; cannot execute. Refer to the Installation Guide and check the SYSMAC LINK unit number.
No
0109 Transmission failed;
destination busy
Increase number of retries or reconfigure system to
Conduct an echoback test and if the effects of noise are considerable, reconsider the operating environment. Restart the computer. If the error occurs again, replace the Board.
Yes
010B CPU Unit error; cannot send. Refer to the manuals for the
CPU Unit and correct the problem. If the problem cannot be corrected, replace the CPU Unit.
No
010C Unit number setting error;
cannot send.
Refer to the Installation Guide and check node address settings to be sure they are within range and unique.
No
Error
Check routing tables. No
010E Transmission failed; routing tables not registered
Source node address Bits 8 to 14:
Source Network address
No
010F Transmission failed; routing table error
0110 Transmission failed; too many relay points
Check routing tables and system configuration. Do not try to access Networks separated by more than one other Network.
No
0111 Transmission failed;
command packet too long
Bit 15:
ON
(1st byte: bits 8 to 15;
Be sure to use the correct FINS command format.
No
0112 Transmission failed; header error.
(1st byte: bits 8 to 15
2nd byte, bits 0 to 7) No
0113 I/O setting error; cannot send.
Correct either the system configuration or the registered I/O tables.
No
0114 CPU bus error; cannot send. Check the Board and cable
connections and clear the error.
No
0115 I/O duplication; cannot send. Check the unit numbers to be
sure the same number is not set twice in the same PC.
No
0116 CPU Bus Unit error; cannot send.
Check the Board and cable connections and clear the error.
No
0117 Internal buffer full Increase number of retries or
reconfigure system to distribute load.
No
0118 Illegal packet discarded Check for nodes sending
illegal data.
Yes
0124 Maximum frame length exceeded; cannot route.
Correct the FINS command format. Also, be sure that the parameters specified for the command do not produce a response that is too long.
No
0203 EEPROM error 01: Read error
02: Write error
Reset the relevant data. If the error occurs again replace the SYSMAC LINK Support Board.
Yes
0206 Number of participating nodes decreased (local node still participating) node participation, cables, and terminating resistance.
No
0207 Number of participating nodes decreased (local node not participating)
address
No
0208 polling node changed Address of previous polling node
Address of new polling node
Check previous polling node. No
Error
Using the SYSMAC LINK Support Software, check network parameters.
Yes
020C Time out with token 00 Error status
(See note 2.)
Check network parameters, node participation, cables, and terminating resistance.
No
0210 Communications controller transmitter error
00 Replace the SYSMAC LINK
Support Board.
Yes
0211 Duplicate node address error (connected to Controller Link by mistake)
00 Local node
address
Reset so that each node address is used only once within the same Network.
No
0214 Node address setting error Not set Correct the node address setting.
Yes
0216 Backup power supply error 00 Error type 01: OFF to ON 02: OFF to ON
Check the backup power supply and the power supply cables.
Yes
021A Set table logic error 00 01: Network
parameters 02: Data link tables 03: Routing tables
Reset the appropriate data. Yes
021B Hardware error 00:
SL1 error 01:
SL2 error
Error status (See note 2.)
Replace the SYSMAC LINK Support Board.
No
021C Data link error stopped Not set Stop the user application, reset the computer, and retry.
Yes
021D Communications cycle time setting error in data link table
Present cycle
Either change the data link table’s communications cycle time setting to automatic setting or increase the manual setting.
Yes
0220 Additional information 1 for number of participating nodes decreased (0206)
Bits 00 to 15 correspond to disconnected nodes 1 to 16
Check the network
parameters, the disconnected node, and the cables.
No
0221 Additional information 2 for number of participating nodes decreased (0206)
Bits 00 to 15 correspond to disconnected nodes 17 to 32
No
0222 Additional information 3 for number of participating nodes decreased (0206)
Bits 00 to 15 correspond to disconnected nodes 33 to 48
No
0223 Additional information 4 for number of participating nodes decreased (0206)
Bits 00 to 15 correspond to disconnected nodes 49 to 62
No
0300 Packet discarded Not set Conduct an echoback test and
find the cause of the error.
Yes
0601 Unit error Not set Check the operating
environment.
Yes
Note 1. Errors indicated by error codes 0101 through 0116 are recorded only when the frame was discarded because transmission was impossible.
!
2. Error Status
The status of each bit indicates that an error has occurred as given in the diagram below.
1: Token timeout error 1: Polling timeout error
1: Communications controller hardware error 1: Polling node was changed
1: Nodes in Network changed (added or removed) 1: Communications controller send error
1: Duplicate node address setting error