Omron SYSMAC NX-CIF105 User Manual

7 - 23
7 Serial Communications
NX-series Communications Interface Units User’s Manual (W540)
7-4 Examples of Communications between CPU Unit or Communications Master and CIF Unit
7
7-4-5 Example of Control Command Execution
This example executes a control command to restart a port.
In response to this
, the CPU Unit or communications master must initialize the value of the Output SID.
In this example, the value of the Output SID is initialized before the Restart Por
t control command is
executed in case an unexpected error, such as a communications error, occurs.
For a programming sample for this example, refer to A-4-2 Programming Sample 1: Restarting CIF Unit
Ports
on page A-32.
Here, we will assume that the input notification data and output notific
ation data are in the following sta-
tus before the control command is executed.
 Input Notification Data
4 • Input-
ting
456
• Discard-
ing 456
• The communications master
receives the inp
ut notification data
given on the right.
• The communications master knows
th
at
the CIF Unit detected the end of
the receive data because the End
Detected in the Port Status in the
input notification data is TRUE.
• The communications master dis-
cards 456 because it is part of the
receive data
for which a parity error
occurred.

• The CIF Unit inputs the following input noti-
fication data to pass 456 to the CPU Unit or
communi
cations master.
•
At the same time, the CIF Unit tells the CPU
Unit or communica
tions master that the end
of the receive data was detected.
5 Input
response
fo
r 4
56
The communications master outputs
the following output notification data to
tell the CIF Unit that 456 was received
normally.

• The CIF Unit receives the output notification
da
ta given on the left.
• The CIF Unit knows that 456 was normally
recei
v
ed by the CPU Unit or communica-
tions master because the Input SID
Re
sp
onse in the output notification data is
06 hex.
*1. : Output notification data is output from the CPU Unit or communications master to the CIF Unit.
: Input notification data is input from the CIF Unit to the CPU Unit or communications master.
7-4-5 Example of Control Command Execution
NX object name Value
Port Status 0010 hex
Input SID 05 hex
Output SID Response 03 hex
Input Data Type 2000 hex
Input Sub Info 0000 hex
Step Process
CPU Unit or communications mas-
ter processing
Communi-
cations
direction
*1
CIF Unit processing
456
Incremented.
End was detected.
3 bytes
This is the final
receive data.
8012 hex
06 hex
03 hex
2000 hex
0000 hex
0003 hex
34 hex,
35 hex,
36 hex,
00 hex
Input Data 01
Port Status
Input SID
Output SID
Response
Input Data Type
Input Sub Info
Input Data Length
03 hex
06 hex
0000 hex
0000 hex
0000 hex
00 hex,
00 hex,
00 hex,
00 hex
Set the Input
SID.
Output SID
Input SID
Response
Output Data
Type
Output Sub Info
Output Data
Length
Output Data 01

Omron SYSMAC NX-CIF105 Specifications

General

Number of Ports	1
Port Type	RJ45
Operating Temperature	0 to 55 °C
Type	Communication Interface Unit
Compatible Series	NX-series
Isolation Voltage	500 VAC

Summary

Features and System Configuration

Features of Communications Interface Units

Details the features of the Communications Interface Units as Sysmac and NX devices.

System Configuration

Describes system configurations for connecting CIF Units to CPU Units or Coupler Units.

Unit Models, Functions, and Support Software

Outlines available CIF Unit models, their functions, and necessary support software.

Serial Communications Instructions for the CIF Units

Explains serial communication instructions for implementing no-protocol transfers.

Specifications and Application Procedures

Specifications

Provides general specifications and individual unit specifications for CIF Units.

Application Procedures

Details the procedures for setting up, wiring, and operating CIF Units.

Part Names and Functions

Part Names

Identifies and describes the physical parts of the CIF Units.

Indicators

Explains the indicators on the CIF Units and their operational meanings.

Installation and Wiring

Installing NX Units

Provides instructions for installing NX Units, including CIF Units.

Connecting the Power Supply and Ground Wires

Details how to connect power supply and ground wires to the CIF Units.

Wiring the Terminals

Explains how to wire the terminals on the CIF Units, including connector types.

Wiring Communications

Special Information

Precautions for Safe Use

Precautions on what to do and not to do to ensure safe usage.

Precautions for Correct Use

Precautions on what to do and not to do to ensure proper operation.

Safety Precautions

During Power Supply

Safety precautions related to the power supply.

Fail-safe Measures

Requirements for external fail-safe measures in the system.

Voltage and Current Inputs

Precautions regarding input voltage and current ranges.

Online Editing

Precautions for Safe Use

Mounting

Installation

Safety precautions during the installation process.

Wiring

Safety guidelines for wiring communications cables.

Power Supply Design

Turning ON the Power Supply

Precautions for Correct Use

Storage, Mounting, and Wiring

Precautions for storing, mounting, and wiring Units correctly.

Transferring Data

Turning OFF the Power Supply

Unit Replacement

Regulations and Standards

Conformance to EU Directives

Conformance to UL and CSA Standards

Conformance to Shipbuilding Standards

Conformance to KC Certification

Sections in this Manual

Features and System Configuration

Describes unit features and system configurations.

Specifications and Application Procedures

Provides specifications and application procedures.

Part Names and Functions

Details part names and functions of CIF Units.

Installation and Wiring

Covers installation and wiring procedures for CIF Units.

I/O Data Specifications

Unit Settings

Serial Communications

Serial Line Monitor

Troubleshooting

Provides error information and corrections.

Maintenance and Inspections

I/O Data Specifications

I/O Data Specifications for NX-CIF101 and NX-CIF105

I/O Data Specifications for NX-CIF210

Unit Settings

Unit Operation Settings

Unit Operation Setting Procedure

Setting the Divided Data Size

Serial Communications

No-protocol Communications

How Data Is Sent and Received

Data Used by the Serial Communications Protocol

Examples of Communications between CPU Unit or Communications Master and CIF Unit

User Programming to Send Data

User Programming to Receive Data

User Programming to Restart a Port

Communications Performance

Serial Line Monitor

How the Serial Line Monitor Works

Support Software Operations

Troubleshooting

How to Check for Errors

Methods for checking and identifying errors.

Checking for Errors with the Indicators

Using unit indicators to check for errors.

Checking for Errors and Troubleshooting on the Support Software

Troubleshooting errors using support software.

Resetting Errors

Procedures for resetting detected errors.

Troubleshooting Flowchart

A flowchart for the troubleshooting process.

Maintenance and Inspections

Cleaning and Inspections

Maintenance Procedures