Omron CJ1W-DRM21 Connection Types, Stop Slave Communications, Slave User Allocations Table

User-set Allocations Section 5-3

2.Only two blocks (OUT 1 and IN 1) can be allocated when setting are made with the allocated DM Area words area, but there are three blocks (OUT 1 and IN 1/2) available with the Configurator.

Setting through the Allocated DM Area Words (Slave User Allocations Table)

Words can be allocated for the OUT 1 area (master to Slave Unit) and IN 1 area (Slave Unit to master) from any specified I/O memory location specified in the settings in the allocated DM area words.

Specified area in I/O memory

Slave

Master

Bit 15 0

First word specified

to

OUT 1 area

OUT area

Bit 15 0

First word specified

to

IN 1 area

IN area

5-3-1 Connection Types

The type of connection cannot be specified when the allocated DM area words is used for settings. The master specifies a poll, bit-strobe, COS, or cyclic connection.

5-3-2 Procedure

Step 1: Stop Slave Communications

If the Unit is already functioning as a slave, turn ON the Slave Stop Switch (word n+1, bit 07) to stop slave communications. This step is not necessary if slave communications have already stopped.

Step 2: Set the Slave User Allocations Table

This table is used to specify the areas, first words, and sizes for OUT block 1 and IN block 1.

• Slave User Allocations Table

First word m = D30000 + (100 x unit number)

Allocated DM area words		Details
Word m+8	Bits 00 to 07	Slave OUT 1 area	Select from fol-
			lowing table
Word m+9	Bits 00 to 15	First word of the slave OUT 1
		area
Word m+10	Bits 00 to 07	Slave OUT 1 area size (in bytes)
Word m+11	Bits 00 to 07	Slave IN 1 area	Select from fol-
			lowing table
Word m+12	Bits 00 to 15	First word of the slave IN 1 area
Word m+13	Bits 00 to 07	Slave IN 1 area size (in byte)

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