Troubleshooting; Error Indications; Maximum Node Number - Omron SYSMAC LINK C1000H-SLK21-V1 System Manual

Troubleshooting

8-1 Troubleshooting

Error Indications

Error indicator
RUN indicator not SYSMAC LINK Unit faulty.
lit
PC not connected to power supply.
PC's power supply voltage too low.
SYSMAC LINK Unit mounting screws are loose.
SYSMAC LINK Unit mounted in wrong slot.
PC faulty.
ERC indicator lit Node address
setting is i
incorrect.
Communica-
tions Control-
ler is faulty.
ERH indicator lit Unit mounted to faulty PC.
Unit mounted to incompatible PC.
EEPROM error.
Watchdog timer error in PC.
INS indicator not lit Terminator connection faulty.
Cable connection faulty.
Local node's node number greater than the
maximum node number set in the polling unit's
network parameters.
LNK indicator flash- Data link table error on local node.
ing
Error when reading EEPROM.
Data link table of currently operating node and
data link table of the local node don't match.
Local node has no data link table.
118
The table below lists error conditions, their probable cause, and possible reme-
dies.
Probable cause
Not between 1 and 62
i
Duplicated setting
Hardware problem in the
communications part of the
y Unit.
Power supply
se ec o selection
circuit is
unstable.
Note Node numbers cannot be modified with the power on. To change node numbers,
first turn off the power, then change the settings, making sure not to duplicate
any node numbers.
Replace Unit.
Connect to power supply (check connectors).
Adjust voltage to within recommended range.
Tighten screws.
Move Unit to correct slot.
Replace PC.
Set the node address to between 1 and 62.
Set the node addresses again so that each
address is used only once and then restart.
Replace the SYSMAC LINK Unit.
Power Supply Replace the Power Supply Unit.
Unit is faulty.
Power supply Replace the SYSMAC LINK Unit.
section of the
Unit is faulty.
Connectors Check connectors and replace them if
are broken or necessary.
have poor
contact.
External Check the primary side of the Power Supply
power supply Unit.
has dropped.
Replace PC.
Replace PC.
Re-initialize network parameters and data link
tables or replace Unit.
Replace PC.
Connect Terminator correctly.
Connect cables correctly.
Increase the maximum node number or
decrease the local node number.
Re-create data link table.
Re-create data link table or replace PC.
Stop data link and modify the data link table of
either the currently operating node or the local
node so they match.
Create a data link table.
Section 8-1
Remedy