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3-1 Overview of DeviceNet Communication

3-3

Communicating with the SK-1000 Series

- DeviceNet Compatible Network Unit DL-DN1 User’s Manual (SK-1000) -

The master unit of the DeviceNet system can use the following functions:

* When using these functions in explicit messaging, use the command parameters

for the functions assigned to external inputs. For details, see "Command

parameter list for SK-1000 series" (page 3-28)

I/O Communication

• The output signal, comparator value, and error status of sensor amplifiers can be

communicated without the need of a ladder program.

• By using the IN and OUT areas as handshake signals, the master unit can execute

external inputs to the sensor amplifier or change setting values.

"I/O Communication" (page 3-4)

Explicit Messaging

The master unit can use explicit messaging commands to directly read/write

parameter values of sensor amplifiers. All functions that can be executed on sensor

amplifiers are available through explicit messaging.

"Explicit Messaging" (page 3-20)

Overview of Communication Methods

Function of

sensor amplifier

Communication methods

I/O communication

p. 3-4

Explicit messaging

p. 3-20

Read status

Yes

Read output

Read current value

Execute external input*

Change BANK number

Rewrite setting value

Motion command

Read current value, setting, and status

Read data with decimal point

information

Rewrite setting

Lock all

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