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Chapter 6
Application Instructions
73
6.12.2 IVFWD: FREQUENCY CONVERTER Forward Rotation Instruction............................................................165
6.12.3 IVREV: FREQUENCY CONVERTER Reverse Rotation Instruction ............................................................166
6.12.4 IVDFWD: FREQUENCY CONVERTER Touch Forward Rotation Instruction ..............................................166
6.12.5 IVDREV: FREQUENCY CONVERTER Touch Reverse Rotation Instruction...............................................167
6.12.6 IVSTOP: FREQUENCY CONVERTER Stop Instruction ..............................................................................167
6.12.7 IVFRQ: FREQUENCY CONVERTER Set Frequency Instruction ................................................................168
6.12.8 IVWRT: FREQUENCY CONVERTER Write Single Register Value Instruction ...........................................169
6.12.9 IVRDST: FREQUENCY CONVERTER Read Status Instruction..................................................................170
6.12.10 IVRD: FREQUENCY CONVERTER Read Single Register Value Instruction ............................................171
6.12.11 XMT: Free-Port Sending (XMT) Instruction................................................................................................172
6.12.12 RCV: Free-Port Receiving (RCV) Instruction .............................................................................................173
6.13 Data Check Instruction ............................................................................................................................................174
6.13.1 CCITT: Check Instruction.............................................................................................................................174
6.13.2 CRC16: Check Instruction............................................................................................................................175
6.13.3 LRC: Check Instruction ................................................................................................................................176
6.14 Enhanced Bit Processing Instruction.......................................................................................................................177
6.14.1 ZRST: Batch Bit Reset Instruction ...............................................................................................................177
6.14.2 ZSET: Set Batch Bit Instruction....................................................................................................................177
6.14.3 DECO: Decode Instruction...........................................................................................................................178
6.14.4 ENCO: Encode Instruction ...........................................................................................................................178
6.14.5 BITS: Counting ON Bit In Word Instruction ..................................................................................................179
6.14.6 DBITS: Counting ON Bit In Double Word Instruction ...................................................................................179
6.15 Word Contactor Instruction......................................................................................................................................180
6.15.1 BLD: Word Bit Contactor LD Instruction.......................................................................................................180
6.15.2 BLDI: Word Bit Contactor LDI Instruction.....................................................................................................180
6.15.3 BAND: Word Bit Contactor AND Instruction.................................................................................................181
6.15.4 BANI: Word Bit Contactor AND Instruction ..................................................................................................181
6.15.5 BOR: Word Bit Contactor OR Instruction .....................................................................................................182
6.15.6 BORI: Word Bit Contactor ORI Instruction ...................................................................................................182
6.15.7 BOUT: Word Bit Coil Output Instruction.......................................................................................................183
6.15.8 BSET: Word Bit Coil Set Instruction.............................................................................................................183
6.15.9 BRST: Word Bit Coil Reset Instruction.........................................................................................................183
6.16 Compare Contactor Instrucitons..............................................................................................................................184
6.16.1 Compare Integer LD (=, <, >, <>, >=, <=) Instrucitons .................................................................................184
6.16.2 Compare Integer AND (=, <, >, <>, >=, <=) Instruction ................................................................................185
6.16.3 Compare Integer OR (=, <, >, <>, >=, <=) Instruction ..................................................................................186
6.16.4 Compare Double Integer LDD (=, <, >, <>, >=, <=) Instruction ....................................................................187
6.16.5 Compare Double Integer ANDD (=, <, >, <>, >=, <=) Instruction .................................................................188
6.16.6 Compare Double Integer ORD (=, <, >, <>, >=, <=) Instruction ...................................................................189
6.16.7 Compare Floating Point Number LDR Instruction ........................................................................................190
6.16.8 Compare Floating Point Number ANDR Instruction .....................................................................................191
6.16.9 Compare Floating Point Number ORR Instruction .......................................................................................192
6.17 Locating Instructions ...............................................................................................................................................193
6.17.1 Setting Up An Absolute Position System .....................................................................................................193
6.17.2 Overview Of Locating Instructions For IVC Series PLC ...............................................................................193
6.17.3 Mechanical Diagram Of Absolute Position System ......................................................................................194
6.17.4 Points To Note For Using Locating instructions ZRN, PLSV, DRVI And DRVA ...........................................194
6.17.5 Notes On Servo Amplifiers...........................................................................................................................195
6.17.6 Special Elements Related To Locating instructions .....................................................................................195
6.17.7 ZRN: Regress To Origin Instruction .............................................................................................................196
IVC Series Small PLC
Programming Manual