Control And Output In No-Protocol (Tcp) / No-Protocol (Udp) - Omron FQ2-S/CH Series User Manual

3-4 Control and Output in No-Protocol (TCP) / No-Protocol (UDP)

FQ2-S1 FQ2-S2 FQ2-S3
This section explains communication settings, input formats, and other information necessary to communicate
with the sensor and external devices using no-protocol communication.
Overview of No-Protocol (TCP) / No-Protocol (UDP)
No-protocol (TCP) complies with TCP/IP protocol and communicates with Ethernet communication equipment
corresponding to TCP/IP protocol.
Check the communication equipment corresponding to Socket service communication (TCP) when you use
OMRON PLC.
No-protocol (UDP) complies with UDP/IP protocol and communicates with Ethernet communication equipment
corresponding to UDP/IP protocol.
Check the communication equipment corresponding to Socket service communication (UDP) when you use
OMRON PLC.
Communications Processing Flow
You can use no-protocol communications between an external device (such as a PLC) and the Sensor to
perform control from the external device via command/response communications or to output data after
measurements. You can use these communications methods simultaneously.
Control by command/response is accomplished by issuing ASCII text commands (example: "MEASURE" for
single measurement) from the external device (PLC, etc.). The Sensor returns a response such as "OK", "NG",
or values.
Data output by the data output method after measurement is in ASCII format or binary format, and is sent to the
external device (PLC, etc.) serially. There is no handshake to determine whether the external device (PLC,
etc.) is ready to receive the data.
Setting Up No-protocol Communications
Setting Network Settings in the Sensor
Set the IP address of the Sensor according to the network where the external devices, such as PLCs, are
connected.
(Setup Mode) − [Sensor settings] − [Network] − [Ethernet] − [IP address setting]
1
Press [Fixed].
2
Set the IP address and subnet mask according to the network where the external devices, such
as PLCs, are connected.
Note
If you connect OMRON CS/CJ-series PLCs to the Ethernet, the following default IP addresses are assigned to the
PLCs.
• IP address: 192.168.250.node_address
FQ2-S/CH User's Manual
for Communications Settings
FQ2-S4 FQ2-CH
Control and Output in No-Protocol (TCP) / No-Protocol (UDP)
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