Flow Sensors
This page introduces KEYENCE’s lineup of flow sensors, including IO-Link–compatible flow sensors, in addition to the supported networks and connection examples.
- Flow sensor lineup
- IO-Link–compatible flow sensor lineup
- Connection example
- Network example
- Supported networks
- Typical connection example
Flow sensor lineup
Gas flow meters
N-bus–compatible flow sensors
N-bus–compatible controllers
Requires an MU-N Series Multi-Sensor Controller.
N-bus–compatible NU Series network communication units
D-bus–compatible flow sensors
D-bus–compatible DL Series network communication units
IO-Link–compatible flow sensor lineup
IO-Link–compatible flow sensors
NQ Series network communication module
Connection example
With an N-bus–compatible flow sensor
NU Series network communication units can be used to connect N-bus–compatible devices.
- Using N-bus–compatible devices makes it possible to connect different models together.
- Up to 16 sensors can be connected to a single communication unit.
From left: NU-EP1, LV-N10, FS-N40, NU-EN8N
With a D-bus–compatible flow sensor
DL Series network communication units can be used to connect D-bus–compatible displacement sensors.
- Multiple D-bus–compatible displacement sensors can be connected to a single communication unit.
- Different models can be connected together.
- Cannot be connected together with FD-S/FD-MH Series D-bus–compatible flow sensors or SK-1000 electrostatic sensors.
Network example
Supported networks
Sensors
| Series | Field network | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| EtherNet/IP® |
EtherCAT® |
DeviceNet® |
CC-Link | IO-Link | PROFINET |
PROFIBUS |
Modbus/ TCP |
||
| Clamp-on Flow Sensor FD-H Series |
Field network
—
|
—
|
—
|
—
|
✓
|
—
|
—
|
—
|
|
| Gas Flow Meter FD-G Series |
Field network
✓
|
—
|
—
|
—
|
—
|
—
|
—
|
✓
|
|
| Clamp-on Flow Meter FD-R Series |
Field network
✓
|
—
|
—
|
—
|
✓
(NQ Series) |
—
|
—
|
—
|
|
| N-bus– compatible |
Flow Sensor FD-Q Series*1 |
Field network
✓
(NU-EP1) |
✓
(NU-EC1A) |
✓
(NU-DN1) |
✓
(NU-CL1) |
—
|
*2
|
*2
|
—
|
| Flow Sensor FD-X Series |
Field network
✓
(NU-EP1) |
✓
(NU-EC1A) |
✓
(NU-DN1) |
✓
(NU-CL1) |
✓
(NQ Series) |
*2
|
*2
|
—
|
|
| D-bus– compatible |
Flow Sensor FD-MH Series |
Field network
✓
(DL-EP1) |
✓
(DL-EC1A) |
✓
(DL-DN1) |
✓
(DL-CL1) |
—
|
*2
|
*2
|
—
|
| Flow Sensor FD-S Series |
Field network
✓
(DL-EP1) |
✓
(DL-EC1A) |
✓
(DL-DN1) |
✓
(DL-CL1) |
—
|
*2
|
*2
|
—
|
|
Controller
| Series | Field network | ||||||
|---|---|---|---|---|---|---|---|
| EtherNet/IP® |
EtherCAT® |
DeviceNet® |
CC-Link | PROFINET |
PROFIBUS |
||
| N-bus– compatible |
Multi-Sensor Controller MU-N Series |
Field network
✓
(NU-EP1) |
✓
(NU-EC1A) |
✓
(NU-DN1) |
✓
(NU-CL1) |
*2
|
*2
|
- Requires an MU-N Series Multi-Sensor Controller.
- Click here to contact KEYENCE regarding PROFINET and PROFIBUS connections.
Typical connection example
Connecting to a field network makes it possible to collect and manage various information from flow sensors. This allows for the construction of information systems for batch monitoring of flow rates at various locations, predictive maintenance, changeovers, quality management, and more.
The following example includes a network-connected flow sensor.
Monitor discharge volumes from a central location.
In this example, the PLC can obtain not only OK/NG judgment output results but also information on discharge amounts, total flow rates, and alarms. The ability to monitor multiple sensors from a central location makes it possible to ensure the optimal discharge amounts are being used.
Instantaneous flow rate
Accumulated flow rate
Control output status
Alarm information, etc.
