Connection Types; Procedure - Omron CS1W-DRM21 Operation Manual

User-set Allocations
Setting through the Allocated DM Area Words (Slave User Allocations Table)
5-3-1

Connection Types

5-3-2

Procedure

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.
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
Bit 15
First word
specified
OUT 1 area
to
Bit 15
First word
specified
IN 1 area
to
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.
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
Allocated DM area words
Word m+8 Bits 00 to 07
Word m+9 Bits 00 to 15
Word m+10 Bits 00 to 07
Word m+11 Bits 00 to 07
Word m+12 Bits 00 to 15
Word m+13 Bits 00 to 07
0
0
First word m = D30000 + (100 x unit number)
Details
Slave OUT 1 area
First word of the slave OUT 1
area
Slave OUT 1 area size (in bytes)
Slave IN 1 area
First word of the slave IN 1 area
Slave IN 1 area size (in byte)
Section 5-3
Master
OUT area
IN area
Select from fol-
lowing table
Select from fol-
lowing table
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