Replacing The Unit - Omron SYSMAC CS1W-CLK13 Operation Manual

Handling Precautions
CS-series Controller Link Units
DM 30000 + 100 × n
n = Unit number
CVM1 and CV-series Controller Link Units
DM 2000 + 100 × n
n = Unit number
Note
!Caution When a CPU Unit has been replaced for a CVM1 or CV-series Controller Link

10-8-5 Replacing the Unit

CS-series, CVM1 and CV-series Controller Link Units
Note
Replacing a Unit after
Stopping the System
(Normal Replacement)
1,2,3...
292
− − − −
Polled node/Polling node
Polled node/Polling node
4. Restart the Controller Link Unit or turn the power off and then back on
again, and then check to see if the Unit is participating in the Network.
If the INS indicator is lit and the ERC and ERH indicators are not lit, then
the Unit is in the Network.
Restart the Unit only when the data links are halted.
Using the above procedure to reset the network parameters of the node that
was replaced to the same as the other nodes in the Network.
Unit, do not connect that node to the Network before carrying out the above
procedures. In particular, a node with a small address will become the polling
node and communicate the initial network parameter status to other nodes, so
there is the chance that network parameters in the entire Network will be dam-
aged.
CS-series, CVM1 and CV-series Controller Link Unit data is stored in the
EEPROM of the CPU Unit. For this reason even if the Controller Link Unit is
replaced, on the hardware settings must be made to return all settings to their
previous status. If, however, the CPU Unit is replaced, the data link tables and
routing tables will need to be reset.
Typically, the system is shut down as described in the following procedure
before replacing a Unit. It is possible to keep the system operating and turn
OFF just the node where the Unit is being replaced, but several conditions
must be met. Refer to Replacing a Unit while the System is Operating below
for details.
1. Turn OFF all nodes in the Controller Link Network.
2. Detach the communications cables attached to the Controller Link Unit to
be replaced and remove the Unit.
3. Mount the new Controller Link Unit in the PLC and connect the communi-
cations cables. (Refer to SECTION 3.)
4. Set the unit number, node address, baud rate, and the terminating resis-
tance for the new Unit to the same settings as the previous Unit. (Refer to
SECTION 4.)
5. Turn ON the power to the PLCs at all nodes in the Controller Link Network
other than those for which the Controller Link Unit was replaced.
6. Check that all the other nodes are active and then turn ON the power to the
PLC with the Controller Link Unit that was replaced.
− : Other settings
0: Polling node
1: Polled node
− : Other settings
0: Polling node mode
1: Polled node
Section 10-8