OPC UA Server Certificates ..................................................................................................................................196

OPC UA Performance Considerations ............................................................................................................197

Sessions and Subscriptions for OPC UA ........................................................................................................197

Chapter 11

RX7i PLC Monitoring Via the Web .......................................................................................... 199

11.1

System Requirements ............................................................................................................................. 199

11.2

Disabling Pop-up Blocking ..................................................................................................................... 199

11.3

Web Server Operation in a Redundant System .................................................................................. 199

11.4

Standard Web Pages ............................................................................................................................... 199

RX7i Home Page ........................................................................................................................................................200

Factory Default Web Page ...................................................................................................................................200

Reference Tables Viewer Page ..........................................................................................................................200

PLC Fault Table Viewer Page ..............................................................................................................................202

I/O Fault Table Viewer Page ................................................................................................................................204

11.5

Downloading PLC Web Pages ................................................................................................................ 204

FTP Connect and Login ..........................................................................................................................................204

Changing the Password ........................................................................................................................................205

Web Page File Transfer ..........................................................................................................................................205

11.6

Viewing the RX7i PLC Web Pages .......................................................................................................... 206

Chapter 12

Diagnostics................................................................................................................................. 207

12.1

What to do if You Cannot Solve the Problem ...................................................................................... 207

12.2

Diagnostic Tools Available for Troubleshooting ................................................................................ 208

12.3

States of the Ethernet Interface (Rack-based and RX7i Embedded Interfaces) ........................... 209

12.4

EOK LED Blink Codes for Hardware Failures (Rack-based and RX7i Embedded Interfaces) ...... 211

12.5

Controller Fault Table ............................................................................................................................. 212

Controller Fault Table Descriptions .................................................................................................................212

12.6

Monitoring the Ethernet Interface Status Bits ................................................................................... 214

LAN Interface Status (LIS) Bits ............................................................................................................................217

Channel Status Bits ..................................................................................................................................................218

12.7

Monitoring the FT Output of the COMMREQ Function Block. .......................................................... 219

12.8

Monitoring the COMMREQ Status Word .............................................................................................. 219

Format of the COMMREQ Status Word .........................................................................................................220

Major Error Codes in the COMMREQ Status Word...................................................................................221

Minor Error Codes for Major Error Codes 05H (at Remote Server PLC) and 85H (at Client PLC)

............................................................................................................................................................................................222

Minor Error Codes for Major Error Code 11H (at Remote Server PLC) ...........................................224

viii

PACSystems* RX7i & RX3i TCP/IP Ethernet Communications User Manual

GFK-2224Q

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