Procedure - Omron CS1W-DRM21 Operation Manual

Fixed Allocations
4-3-2

Procedure

Step 1: Place the CPU Unit in PROGRAM mode.
Step 2: Turn ON the
Master Enable Switch
Step 3: Turn ON the Scan
List Clear Switch
Step 4: Select Fixed
Allocations Area 1 to 3
Software Switch
address
Word n, bit 08
Word n, bit 09
Word n, bit 10
Step 5: Turn ON the Scan
List Enable Switch
106
Note More than one Master Unit can be included in a single PLC with fixed alloca-
tions, as shown below (3 Units max.).
If the master communications have been disabled (if Master Function Enable
Flag (word n+11, bit 03) is OFF), turn ON the Master Enable Switch (word n,
bit 06) to enable master communications. Once Master communications have
been enabled by turning this switch ON, it will not change even if the power is
turned OFF and back ON again.
Note If the master communications are enabled (if Master Function Enable
Flag (word n+11, bit 03) is ON), skip this step and go onto the next
step. (If the Master Enable Switch is turned ON when master com-
munications are enabled, a Unit error will occur and a C2 error will be
displayed on the 7-segment display on the front panel.)
If the Unit is in the Scan List Enable mode (if Scan List Disabled Flag (word
n+11, bit 04) is OFF), turn ON the Scan List Clear Switch (word n, bit 01) to
change to the Scan List Disable mode.
Note If the Unit is already in the Scan List Disable mode (if the Scan List
Disabled Flag (word n+11, bit 04) is ON), skip this step and go onto
the next step. (If the Scan List Clear Switch is turned ON when the
Unit is in the Scan List Disable mode, a Unit error will occur and a C2
error will be displayed on the 7-segment display on the front panel.)
Turn ON the Master Fixed Allocation Setting 1 to 3 Switch (word n, bits 08 to
10) in the Software Switches in the words allocated in the CIO Area to select
the fixed allocations area from1 to 3. One word will be allocated per node
address in order of node addresses for the output (OUT) block and one word
for the input (IN) block in the CS/CJ-series DeviceNet CIO Area.
Software Switch name
Master Fixed Allocation
Setting 1 Switch
Master Fixed Allocation
Setting 2 Switch
Master Fixed Allocation
Setting 3 Switch
Remote I/O communications will start with the scan list disabled after a fixed
allocations area has been selected. Check to see if communication is pro-
ceeding normally with each slave, and then turn ON the Scan List Enable
Switch (word n, bit 00) to communicate with the scan list enabled.
Master Unit
Master Unit
Slave
Slave
First word n = CIO 1500 + (25 x unit number)
Fixed allocations Allocated
area number OUT area
Fixed allocations area CIO 3200 to
1 CIO 3263
Fixed allocations area CIO 3400 to
2 CIO 3463
Fixed allocations area CIO 3600 to
3 CIO 3663
Section 4-3
Allocated
IN area
CIO 3300 to
CIO 3363
CIO 3500 to
CIO 3563
CIO 3700 to
CIO 3763