Index

Numerics

1:N connection among RS-422A ports, 119 1:N connection among RS-485 ports, 121

1:N connection between RS-422A/485 at the NT631/ NT631C and RS-232C at the host, 86

A

Allowable power supply voltage range, 245

Applicable connectors, 286

Automatic transmission (memory unit), 41

B

Backlight (for NT631C only), 235

Backlight brightness adjustment, 189

Battery cover, 30

Before operating, 23

C

Cable connection dimensions, 257

Cable for peripheral port of CS1-series PLC, 286 Cables with connectors, 285

Calling the System Installer mode, 134

Calling the System Menu, 133

Cell size (Touch panel), 248 Changing the system settings, 147 Checking communications at serial ports, 210 Checking communications with a printer, 213 Checking communications with the Support Tool, 209 Checking interfaces, 209

Checking screen data, 198

Checking the backlight (for NT631 only), 204 Checking the battery voltage, 208 Checking the buzzer, 202

Checking the LCD (screen display), 204

Checking the PT setting status, 193

Checking the RUN LED, 203

Checking touch switches, 207

Chemical-resistant cover, 288

Cleaning method, 242

Clearing screen data, 135, 148

Clearing/installing the system program, 145

Comm. A Method, 153

Comm. B Method, 153

Comm. B Select, 153

Communications Board, 62, 66, 70, 95 Communications Boards, 106 Communications by Using Memory Link, 21 Communications condition, 152

Communications condition settings for bar code readers, 184

Communications condition settings for the host link method, 153

Communications errors and their remedies, 233

Communications method for communications with the host, 152

Communications method settings, 154

Communications methods, 26

Communications port, 26

Communications specifications, 250

Communications type, 26

Communications Unit, 281

Comparison between NT631 and NT631C, 7 Connecting a bar code reader, 36 Connecting a printer, 36

Connecting directly between RS-232C ports, 73 Connecting to other model PLCs, 21 Connecting to the Support Tool, 35 Connection cable, 286

Connection method, 26

Contrast adjustment, 187

CPU Unit, 95

CPU Units, 62, 66, 70, 106, 108, 112

CPU Units (for connection via a host link), 282

CPU Units connectable with Host Link Units or Communi- cations Board, 95

D

Device check, 201

Device Monitor function, 220

Dimensions, 245

Direct connection function, 18 Disabling/enabling System Menu display, 147 Disabling/enabling writing to the screen data memory, 147

Display, 29

Display color, 247

Display device, 247

291

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Image 308
Omron NT631C manual Numerics