User manual OMRON NC413

[. . . ] W334-E1-04 SYSMAC C200HW-NC113/NC213/NC413 Position Control Units C200HW-NC113/NC213/NC413 Position Control Units Operation Manual Revised July 2003 iv Notice: OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual. The following conventions are used to indicate and classify precautions in this manual. Failure to heed precautions can result in injury to people or damage to property. ! DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. ! [. . . ] The conditions to be set are the same as those for the data writing example. The beginning word of the DM area, where the read data is to be stored, is set to DM 0500. Position Control Unit (NC413, Unit No. 0) Work bit Operating memory area READ DATA (10113) Common parameters Data area Operating data area Speed #0 Data transfer Speed #1 105 Reading Data with the READ DATA Bit Example of Program The work bit 23500 is used to begin reading. Section 5-3 Read switch. Set total number of words to be read from Position Control Unit to "2. " Work bit Data transferring Set the read destination beginning address for Position Control Unit data area to "1300" (transfer source). Set the beginning word address of the DM area where the read data is to be stored to "0500" (transfer destination). READ DATA Contents of DM after read is completed. DM0500 DM0501 1 5 0 5 0 0 0 0 Speed #0 Speed #1 106 Writing Data with IOWR Section 5-4 5-4 Writing Data with IOWR With a C200HX/HG/HE-series PC, the Intelligent I/O Write instruction (IOWR) can be used to write data. 5-4-1 Outline The following diagram outlines the way in which positioning sequences are written to the Position Control Unit. With IOWR, 128 words of data in consecutive addresses can be transferred at one time. Position Control Unit (NC413) Write C: Beginning address of data. S: Beginning word address of transfer source. Data area D: Transfer destination unit number and number of transfer words. to Sequence #0 Data Sequence #1 to Sequence #99 Other data · Speeds · Positions · Acceleration times · Deceleration times · Dwell times · Zones to The Position Control Unit for which IOWR is used to write data must be mounted on the Programmable Controller's CPU Rack or an Expansion I/O Rack. Refer to 5-4-2 Instruction Specifications and the Programmable Controller's operation manual for details on how to set the operand for the IOWR instruction. Setting IOWR C: Beginning address of the data area in the Position Control Unit where the data is to be stored. S: Beginning word address of the area in the PC on which the data has been set. D: Unit number of the Position Control Unit which is the transfer destination, and the total number of words to be read. Writing the data Execute IOWR. 107 Writing Data with IOWR Section 5-4 5-4-2 Instruction Specifications The following describes the format of IOWR instructions. IOWR C S D @IOWR C S D Operand C 15 Beginning address of data. Explanation 00 Set the beginning address of the data area in the Position Control Unit where the data is to be stored. S Source address. Set the beginning word address of the area in the PC on which the data has been set. Set the unit number of the Position Control Unit to which the data is to be transferred (the transfer destination unit number) and the total number of words to be written (the number of transfer words). The number of transfer words can be set anywhere in the range from 1 to 128. 5-4-3 Flags Used When data is transferred using IOWR, it will be possible to use the ER Flag (25503) and the Equals Flag (25506) to check whether the transfer has been completed successfully. If the Error Flag (word n+8, bit 12) is ON, an error code will be output to I+27 in the operating data area. Check this error code to determine the cause of the error and correct it. Flag ER (25503) ON Condition · Number of transfer words is not BCD. · Number of transfer words is 0 or 129 and above · When DM was set, the contents of DM was not 6656 and above, or BCD. · The transfer destination unit number is outside the permissible range. · The unit number for the transfer destination unit is for a Remote I/O Slave Unit. OFF Condition Anything else. 108 Writing Data with IOWR Section 5-4 5-4-4 Precautions when Using IOWR IOWR is an improvised instruction which transfers all data with a single instruction. It increases the transfer time for the data as well as the cycle time for the ladder program. The monitoring time for the cycle time should be adjusted as required. The transfer time is influenced by such factors as the model of the Programmable Controller being used, the ladder program, and the status of the Position Control Unit, and cannot be calculated easily. [. . . ] Page 138: Note in 7-3-3 Multiple Starts with Direct Operation corrected. Information on multiple reversals added to 7-3-4 Multiple Start Operating Patterns. Page 151: The sequence number enable bit corrected from 03 to 00 in the Operating Memory Area table. Page 155: The first chart in Interrupt Feeding Completion (Codes 5 and 6) corrected. [. . . ]