Non-Procedure Communications; Communications Processing Flow - Omron SYSMAC FH Series User Manual

2 Methods for Connecting and Communicating with External Devices
2-5

Non-procedure Communications

This section provides the communications settings, communications specifications, input formats, and
other information required to perform Non-procedure (normal) communications between the Sensor
Controller and an external device.
2-5-1

Communications Processing Flow

The Sensor Controller communicates with an external device using command-based Non-procedure
communications via Ethernet or RS-232C/422.
In Ethernet, UDP/IP or TCP/IP protocol is used for the communications.
External device
*1 : If Xon/Xoff is selected for the flow control and no response is received from the computer within the set
timeout interval, there must either be a disconnection or the computer is not functioning correctly, caus-
ing the communications to time out.
2 - 316
Command
ASCII character command
For example, when MEASURE is sent to execute a single measurement.
Response
OK, NG, values, etc.
Measurement data
There is no handshaking to determine if data can or cannot be
received from an external device that is being sent serially
(continuous).
FH/FHV Series Vision System User's manual for Communication Settings (Z342-E1)
Sensor Controller
Measurement Flow
Execution of processing items
Data Output Unit