User Manual

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1
Before Using
- EtherNet/IP Compatible Network Unit DL-EP1 User’s Manual (GT-70A) -
1-1 DL-EP1 Overview
The DL-EP1 operates as an EtherNet/IP communication adaptor. EtherNet/IP
communications enable you to output the ON/OFF control signals and current values
of the DL-EP1 and sensor amplifiers connected to the DL-EP1 as communication
data to a PLC or other equipment.
The DL-EP1 supports EtherNet/IP cyclic communication (Implicit messaging) and
message communication (Explicit messaging). Cyclic communication enables data
exchange without a ladder program. Message communication allows for reading/
writing sensor amplifier parameters and issuing commands to the sensor amplifiers.
■ System configuration example
■ Number of Connectable Sensor Amplifiers
* Cannot be connected to GT-70 series.
Sensor amplifiers supporting D-bus are connectable. You can connect one sensor to
the DL-EP1 as a main unit and one or more sensors to the main unit as expansion units.
(D-bus is the name of KEYENCE's wiring-saving system for sensor amplifiers.) If the
sensor amplifier is D-bus compatible, different models can be connected together.
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
PLC or other host device
(EtherNet/IP unit)
DL-EP1 (this unit)
EtherNet/IP
adaptor
EtherNet
Connectable Sensor Amplifiers
Name Amplifier form Main unit
Expansion
unit
Maximum number of
connectable units
GT-70A
Series*
DIN rail mount
type
GT-71A
GT-71AP
GT-72A
GT-72AP
10
(1 main unit, 9 expansion units)
Panel mount
type
GT-75A
GT-75AP
GT-76A
GT-76AP
10
(1 main unit, 9 expansion units)