Program; Overview - Omron CJ Series Connection Manual

9. Program

This section describes the details on the program used in this document.

9.1. Overview

The following explains specifications and functions of the program that are used to check the
connection between Sensor Controller (hereinafter referred to as Destination Device) and
PLC (Serial Communications Unit (hereinafter referred to as SCU)).
This program uses the protocol macro function of SCU to send and receive the "version
information acquisition" command to/from Destination Device and to detect a normal end or
an error end.
A normal end of the send/receive processing means a normal end of the communications
sequence.
An error end means an error end of the communications sequence and an error of Destination
Device (detected with the response data from Destination Device).
Here, the "&" prefix is added to decimal data and the "#" prefix is added to hexadecimal data
when it is necessary to distinguish between decimal and hexadecimal data. (e.g., "&1000" for
decimal data and "#03E8" for hexadecimal data)
Additional Information
OMRON has confirmed that normal communications can be performed using this program
under 5.2. Device Configuration, however, we do not guarantee the normal operation under
the disturbance such as electrical noise or the performance variation of the device.
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