User Manual

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1
Before Using
- DeviceNet Compatible Network Unit DL-DN1 User’s Manual (GT-70A) -
1-1 DL-DN1 Overview
The DL-DN1 operates as a slave unit of DeviceNet communication. Using DeviceNet
communications, the sensor amplifiers and other units connected to the DL-DN1 can
transmit their ON/OFF control signals and current values as communication data to a
PLC or other equipment.
The DL-DN1 supports DeviceNet I/O communication (polling) and explicit messaging.
I/O polling enables data communi
cation without t
he need of a ladder program. Explicit
messaging allows for reading/writing sensor amplifier parameters and issuing motion
commands to the sensor amplifiers.
 System configuration example
 Number of Connectable Sensor Amplifiers
*Cannot be connected to GT-70 series.
The DL-DN1 can connect to multiple sensor amplifiers (a single main unit and multiple
expansion units) which sup
port D
-Bus. "D-bus" is the name of KEYENCE's wiring-
saving system for sensor amplifiers.
Different types of sensor amplifiers with D-bus support can be connected to a single
DL-DN1 unit.
How many and what types of sensor amplifiers can be connected depends on the
sensor amplifiers or units to be connected. Please inquire for details.
Overview
D-bus compatible sensor amplifier
PLC or other host device
(DeviceNet master unit)
DL-DN1 (This unit)
DeviceNet slave unit
KV-DN20
MS
NS
ON
TERM.
Types and Number of Connectable Sensor Amplifiers
Name Amplifier form Main unit
Expansion
unit
Maximum number of
connectable units
GT-70A
series *
DIN rail
mounting type
GT-71A
GT-71AP
GT-72A
GT-72AP
10
(1 main unit,9 expansion units)
Panel
mounting type
GT-75A
GT-75AP
GT-76A
GT-76AP
10
(1 main unit,9 expansion units)