Replacing The Unit - Omron SYSMAC CS1W-RPT01 Operation Manual

Handling Precautions
9-6-1

Replacing the Unit

Note
Bit address
Bit 11 Reserved for system use (fixed at 0)
Bit 06 Reserved for system use (fixed at 0)
(Bit 05) 0 Manual set-
ting
(Bit 04) 0
Word
address
+12 to +25 Reserved for system use (fixed at 0)
322
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.
1. The DM Parameter Area for CS1W-CLK21 and CJ1W-CLK21 Controller
Link Units and that for CS1W-CLK21-V1, CS1W-CLK23, CJ1W-CLK21-
V1, and CJ1W-CLK23 Controller Link Units differ in the way shown below.
• Differences in Software Switches (D30000 + 100 × Unit No.)
CS1W-CLK21
CJ1W-CLK21
0 Automatic
setting
1
• Difference in Data Link Automatic Setting Parameters (D3000 + 100 ×
Unit No. + 12 to 25)
CS1W-CLK21
CJ1W-CLK21
Because of the differences shown above, if a value other than 0 is set in
the above areas of the DM Parameter Area, there is a possibility of mal-
function, and particularly in data link operation if the Unit is replaced by one
with a different DM Parameter Area. Therefore, before replacing the Unit,
check to make sure that 0 is set in all the above areas, and then set the
parameters 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.
Relay Terminal Blocks (CJ1W-TB101) can be used on any node but the
end nodes to enable replacing the Controller Link Unit with the communi-
cations cable connected and turn OFF the power to only the Unit being re-
placed. Refer to Appendix C Using the Relay Terminal Block for details.
3. When replacing the Unit, do not reconnect that node to the Network before
carrying out the procedures listed below. In particular, a node with a small
address will become the polling node and communicate the initial network
Unit
CS1W-CLK21-V1, CS1W-CLK23
CJ1W-CLK21-V1, CJ1W-CLK23
Used as the Wired Network 62 Node Enable Bit.
0: 32 nodes max.
1: 62 nodes max.
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- 0
ting
0 0
0 1
Unit
CS1W-CLK21-V1, CS1W-CLK23
CJ1W-CLK21-V1, CJ1W-CLK23
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.)
Section 9-6
Automatic 0 Automatic
setting - setting - 1:N
0
equality lay- allocation
1
out