KEYENCE DL-DN1 - Manual (Page 12)

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- DeviceNet Compatible Network Unit DL-DN1 User’s Manual (FD-S) -
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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 communication without the 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 a panel mounting type.
The DL-DN1 can connect to multiple sensor amplifiers (a single main unit and multiple
expansion units) which support 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
FD-S
series* DIN rail
mounting type FD-SA1NA
FD-SA1PA FD-SA2NA
FD-SA2PA 4
(1 main unit, 3 expansion units)