User guide

3-1 Overview of DeviceNet Communication
3-3
3
Communicating with the IL Series
- DeviceNet Compatible Network Unit DL-DN1 User’s Manual (IL) -
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 IL 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
Ye s
Ye s
Read output
Read current value
Execute external input
Change BANK number
Rewrite setting value
Motion command
No
Read current value, setting, and status
Read data with decimal point
information
Rewrite setting
Lock all