Omron CJ1W-DRM21 Procedure, Place the CPU Unit in Program mode Turn on, Master Enable Switch

Fixed Allocations Section 4-3

Note More than one Master Unit can be included in a single PC with fixed alloca- tions, as shown below (3 Units max.).

Master Unit

Master Unit

Slave

Slave

4-3-2 Procedure

Step 1: Place the CPU Unit in PROGRAM mode.

Step 2: Turn ON the	If the master communications have been disabled (if Master Function Enable
Master Enable Switch	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.)

Step 3: Turn ON the Scan If the Unit is in the Scan List Enable mode (if Scan List Disabled Flag (word

List Clear Switchn+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.)
Step 4: Select Fixed		Turn ON the Master Fixed Allocation Setting 1 to 3 Switch (word n, bits 08 to
Allocations Area 1 to 3		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.
					First word n = CIO 1500 + (25 x unit number)
	Software Switch			Software Switch name	Fixed allocations	Allocated	Allocated
	address				area number	OUT area	IN area
	Word n, bit 08			Master Fixed Allocation	Fixed allocations area	CIO 3200 to	CIO 3300 to
				Setting 1 Switch	1	CIO 3263	CIO 3363
	Word n, bit 09			Master Fixed Allocation	Fixed allocations area	CIO 3400 to	CIO 3500 to
				Setting 2 Switch	2	CIO 3463	CIO 3563
	Word n, bit 10			Master Fixed Allocation	Fixed allocations area	CIO 3600 to	CIO 3700 to
				Setting 3 Switch	3	CIO 3663	CIO 3763

Step 5: Turn ON the Scan Remote I/O communications will start with the scan list disabled after a fixed

List Enable Switchallocations 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.

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