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Omron CPM2C User Manual

Omron CPM2C
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221
SECTION 7
Simple Communications Unit
This section describes the features and functions of the CPM2C-CIF21 Simple Communications Unit, the settings
required to use the Unit, and an example application. DM Settings Assignment Sheets are provided in Appendix C to
record data settings.
7-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
7-1-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
7-1-2 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
7-1-3 Processing Component Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
7-2 Unit Components and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
7-3 Preparation for Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
7-3-1 Unit Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
7-3-2 Switch Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
7-3-3 PC Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
7-3-4 Component Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
7-4 Data Memory (DM) Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
7-4-1 Shared Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
7-4-2 Individual Unit Areas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
7-5 DM Settings and Component Communications . . . . . . . . . . . . . . . . . . . . . . . 254
7-5-1 DM Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
7-5-2 Starting Communications with the Components . . . . . . . . . . . . . . . 255
7-6 Precautions for Component Communications . . . . . . . . . . . . . . . . . . . . . . . . 255
7-7 Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
7-7-1 Fatal Errors (ERR Indicator Lit) . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
7-7-2 Non-fatal Errors (ERR Indicator Flashing) . . . . . . . . . . . . . . . . . . . 257
7-8 Data Refresh Intervals (Reference Data) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
7-9 Example Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
7-9-1 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
7-9-2 System Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
7-9-3 DM Settings and Component Communications. . . . . . . . . . . . . . . . 261
7-9-4 Ladder Program for DM Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . 265

Table of Contents

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Omron CPM2C Specifications

General IconGeneral
BrandOmron
ModelCPM2C
CategoryController
LanguageEnglish

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