Standard Slave Function; Standard I/O Communications As Standard Slave; Creating I/O Data (Slave I/O) To Use As Standard Slave - Omron NE1A-SCPU01 - 2006 Operation Manual

Standard Slave Function

4-6

Standard Slave Function

4-6-1

Standard I/O Communications as Standard Slave

Standard Slave Specifications
Standard I/O Connections
Number of connections
Maximum data size
Connection type
Note
4-6-2

Creating I/O Data (Slave I/O) to Use as Standard Slave

An NE1A-series Controller can function as a Standard Slave. One NE1A-
series Controller can function simultaneously as a Safety Master, Safety
Slave, and Standard Slave.
The NE1A-series Controller's internal status information is also included in
the data allocated to the Standard Master, and so a monitoring system using
a PLC can be established.
The following steps are required in order for an NE1A-series Controller to per-
form standard I/O communications as a Standard Slave.
1. Creation of I/O data (slave I/O) to use as a Standard Slave
2. Registration in the Standard Master
3. Connection settings in the Standard Master
Standard PLC
Standard Master
2 max.
16 input bytes or 16 output bytes (per connection) (See note 1.)
Poll, Bitstrobe, COS, or Cyclic
(1) The maximum data size is eight input bytes or zero outputs bytes when a
Bitstrobe connection is selected.
(2) COS and cyclic connections cannot be used at the same time.
(3) When two Poll/COS or Poll/Cyclic connections are selected, the same
output destination is used, so the maximum output data size is 16 bytes.
For inputs, up to 32 bytes of data can be set for 2 connections.
The I/O data to be used for the DeviceNet Slave must be created in order for
an NE1A-series Controller to perform standard I/O communications as a
Standard Slave. The memory blocks for this I/O data are called Slave I/O.
Standard I/O communications
NE1A
(Standard Slave)
Section 4-6
IN Area OUT Area
Slave IN Slave OUT
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