Allocating Data In The Master - Omron E5ZN-DRT Operation Manual

Devicenet communications unit for e5zn temperature controllers
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Simple I/O Allocation
4-2-3

Allocating Data in the Master

Fixed Allocations
User-set Allocations
Address
First word + 25 words
First word + 26 words
First word + 27 words
First word + 28 words
First word + 29 words
First word + 30 words
First word + 31 words
First word + 32 words
First word + 33 words
First word + 34 words
First word + 35 words
First word + 36 words
First word + 37 words
Note
1. Individual bits will be enabled only through the maximum number of con-
nected Temperature Controllers set on the rear panel rotary switch.
2. Words will be allocated only through the maximum number of connected
Temperature Controllers.
Example:
If the maximum number of connected Temperature Controllers is 10, then
the allocated OUT Area will be the 28 words from, i.e., from the first word
to the first word + 27 words.
Data is allocated in the master in the same way as other slaves using either
fixed allocations or user-set allocations.
Note The sizes of the IN and OUT Areas allocated to the DeviceNet Communica-
tions Unit are larger than for other slaves, so make sure that the allocated
words are within the DeviceNet Area and do not overlap with words used by
other slaves.
When fixed allocations are used, the location for allocated data is automati-
cally determined according to the node address of the DeviceNet Communi-
cations Unit. Fixed allocations can be set without the Configurator.
With fixed allocations, however, each node address is allocated one word.
Therefore, the node addresses allocated to the DeviceNet Communications
Unit cannot be used by other nodes, as shown below.
• IN Area
Allocated 16 to 46 words, therefore, uses node addresses 16 to 46.
• OUT Area
Allocated 8 to 38 words, therefore, uses node addresses 8 to 38.
With user-set allocations, the Configurator can be used to allocate I/O to the
DeviceNet Communications Unit in any location of the CPU Unit's I/O memory
area.
The configuration of the DeviceNet Communications Unit's allocation data is
fixed, so the data can be used by merely allocating it in the master. For actual
allocating methods, refer to 4-4 Allocating Data in the Master.
Note
1. When performing user-set allocations from a DeviceNet Configurator, use
Ver. 2.31 or later.
Unit 9, Ch2 SP (type number 123) (See note 2.)
Unit 10, Ch1 SP (type number 123) (See note 2.)
Unit 10, Ch2 SP (type number 123) (See note 2.)
Unit 11, Ch1 SP (type number 123) (See note 2.)
Unit 11, Ch2 SP (type number 123) (See note 2.)
Unit 12, Ch1 SP (type number 123) (See note 2.)
Unit 12, Ch2 SP (type number 123) (See note 2.)
Unit 13, Ch1 SP (type number 123) (See note 2.)
Unit 13, Ch2 SP (type number 123) (See note 2.)
Unit 14, Ch1 SP (type number 123) (See note 2.)
Unit 14, Ch2 SP (type number 123) (See note 2.)
Unit 15, Ch1 SP (type number 123) (See note 2.)
Unit 15, Ch2 SP (type number 123) (See note 2.)
Section 4-2
Item
43

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