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Handling Precautions Section 9-6
9-6 Handling Precautions
The Controller Link Unit is a Network device. If the Unit is damaged, it will
effect the entire Network, so always ensure repairs are undertaken immedi-
ately. We recommend that you have a spare Controller Link Unit on hand so
that repairs may be conducted quickly.
9-6-1 Replacing the Unit
Observe the following precautions when replacing the Unit.
• Always turn OFF the power before replacing the Unit.
• Check that the new Unit is not faulty.
• If you suspect that a poor connection is the cause of a malfunction, clean
the connectors using a clean, soft cloth and industrial-grade alcohol.
Remove any lint or threads left from the cloth, and remount the Unit.
• When returning a faulty Unit for repairs, always attach a detailed fault
report to the Unit and return to you nearest OMRON outlet as listed at the
back of this manual.
Note 1. The DM Parameter Area for Controller Link Units without “-V1” (CS1W-
CLK21 and CJ1W-CLK21) and that for Controller Link Units with “-V1”
(CS1W-CLK21-V1 and CJ1W-CLK21-V1) differ in the way shown below.
• Differences in Software Switches (D30000 + 100
× Unit No.)
• Difference in Data Link Automatic Setting Parameters (D3000 + 100
×
Unit No. + 12 to 25)
Because of the differences shown above, when using a Controller Link Unit
without “-V1”, if a value other than 0 is set in the above areas of the CPU
Unit’s DM Parameter Area, if the Unit is Unit with “-V1”, there is a possibility
of malfunction, particularly in data link operation. Therefore, before replac-
ing the Unit (i.e., while the Unit without “-V1” is still mounted), check that 0
is set in all the above areas, and then set as required after the Unit has
been replaced.
2. In order to prevent faulty operation be sure to turn off the power to all nodes
before replacing the Unit.
Bit address Unit
CS1W-CLK21
CJ1W-CLK21
CS1W-CLK21-V1
CJ1W-CLK21-V1
Bit 11 Reserved for system use (fixed at 0) Used as the Wired Network 62 Node Enable Bit.
0: 32 nodes max.
1: 62 nodes max.
Bit 06 Reserved for system use (fixed at 0) Used as one of the bits for specifying the data link mode. Mode
set to automatic setting with 1:N allocation when this bit is
turned ON.
0 Manual set-
ting
0 Automatic
setting -
equality lay-
out
0 Automatic
setting - 1:N
allocation
(Bit 05) 0 Manual set-
ting
0 Automatic
setting
000
(Bit 04)01011
Word
address
Unit
CS1W-CLK21
CJ1W-CLK21
CS1W-CLK21-V1
CJ1W-CLK21-V1
+12 to +25 Reserved for system use (fixed at 0) Used to make parameter settings for automatic data link cre-
ation with 1:N allocation. (Only possible when automatic setting
with 1:N allocation is selected by setting software switch bits
04, 05, and 06 to 1, 0, and 1 respectively.)