Mitsubishi FX2-16E series, User Manual

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7
FX
3U
Series Programmable Controllers
User's Manual - Hardware Edition
Table of Contents
10.5 Pulse Catch (M8170 to M8177) ................................................................................................ 204
10.5.1 Allocation of special memories to input numbers (ON duration of input signals) ...................... 204
10.5.2 Cautions for pulse catch ............................................................................................................ 204
10.5.3 Examples of external wiring....................................................................................................... 205
11. Use of High-speed Counters (C235 to C255) 206
11.1 Outline....................................................................................................................................... 206
11.2 Input Specifications ................................................................................................................... 207
11.2.1 High-speed input special adapter (FX
3U
-4HSX-ADP)............................................................... 207
11.2.2 Cautions on connecting mating device...................................................................................... 207
11.3 Types of Counting and Operations ........................................................................................... 208
11.3.1 Classification according to counting method ............................................................................. 208
11.3.2 Types and input signal forms..................................................................................................... 208
11.3.3 High-speed counter device notations ........................................................................................ 208
11.4 List of Device Numbers and Functions ..................................................................................... 209
11.5 Allocation of Device Numbers to Input Numbers ...................................................................... 211
11.5.1 Allocation table .......................................................................................................................... 211
11.5.2 Inhibition of redundant use of input numbers ............................................................................ 212
11.6 Handling of High-speed Counters ............................................................................................. 213
11.6.1 1-phase 1-count input................................................................................................................ 213
11.6.2 1-phase 2-count input................................................................................................................ 214
11.6.3 2-phase 2-count input................................................................................................................ 215
11.7 Timing of Updating of Current Value and Comparison of Current Value .................................. 216
11.7.1 Timing of updating of current value ........................................................................................... 216
11.7.2 Comparison of current value ..................................................................................................... 216
11.8 Conditions for Hardware Counter to be Handled as Software Counter .................................... 217
11.8.1 Conditions under which counters are handled as software counters ........................................ 217
11.8.2 Method of confirming operation status of counters.................................................................... 217
11.9 Calculation of Response Frequency and Overall Frequency.................................................... 218
11.9.1 Response frequencies of hardware counters ............................................................................ 218
11.9.2 Response frequencies and overall frequency of software counters .......................................... 218
11.10 Examples of External Wiring (Rotary Encoder)....................................................................... 221
11.10.1 1-phase 1-input [C235 to C245] .............................................................................................. 221
11.10.2 2-phase 2-input [C251 to C255] .............................................................................................. 222
11.10.3 Cautions for the other side device ........................................................................................... 223
11.11 Related Devices and Function Switching Procedures ............................................................ 224
11.11.1 Related devices ....................................................................................................................... 224
11.11.2 [Function switching] switching of logic of external reset input signal....................................... 226
11.11.3 [Function switching] switching of allocation and functions of input terminals .......................... 226
11.11.4 [Function switching] procedures for using 2-phase 2-count input counters
C251 to C255 in 4 edge count mode ...................................................................................... 227
11.12 Cautions on Use...................................................................................................................... 228
12. Output Wiring Procedures 229
12.1 Sink and Source Output (Transistor)......................................................................................... 231
12.2 External Wiring for Relay Output............................................................................................... 232
12.2.1 Output specifications (main unit) relay output ........................................................................... 232
12.2.2 Product life of relay contacts ..................................................................................................... 233
12.2.3 Handling of relay output............................................................................................................. 233
12.2.4 External wiring precautions ....................................................................................................... 234
12.2.5 Example of external wiring ........................................................................................................ 235
12.3 Exte
rnal Wiring of Transistor Output (Sink/Source) Type ................................................................. 236
12.3.1 Output specifications (main unit) transistor output (sink) type................................................... 237
12.3.2 Output specifications (main unit) transistor output (source) type .............................................. 238
12.3.3 Handling of transistor output...................................................................................................... 239
12.3.4 External wiring precautions ....................................................................................................... 241
12.3.5 Example of external wiring ........................................................................................................ 243
12.4 External Wiring for Triac (SSR) Output Type ............................................................................ 245
12.4.1 Output specification (main unit) triac output type ...................................................................... 245
12.4.2 Handling of triac output.............................................................................................................. 246
12.4.3 External wiring precautions ....................................................................................................... 247
12.4.4 Example of external wiring ........................................................................................................ 248