Page 13 Provides a general overview of the types of Using the Message communication, and explains how to establish Instruction network communication using the message instruction. Troubleshooting Your Explains how to interpret and correct problems Troubleshooting System with your MicroLogix controller system. Programming Explains the system status file and provides Appendix B Reference instruction execution times.
Valid Addressing Modes Page 15 - Allen Bradley,Rockwell,plc,servo,drive Preface Related Documentation The following documents contain additional information concerning Allen-Bradley products. To obtain a copy, contact your local Allen-Bradley office or distributor. Then call your local Allen-Bradley representative.
Your Questions or Comments on this Manual Page Installing Your Controller efesotomasyon. The only tools you require are a Flat head or Phillips head screwdriver and drill. Topics include: compliance to European Union Directives hardware overview master control relay surge suppressors It has been designed and tested to meet the following directives. Page Hardware Overview Installing Your Controller Hardware Overview The MicroLogix programmable controller is a packaged controller containing a power supply, input circuits, output circuits, and a processor.
Since the master control relay allows the placement of several emergency-stop switches in different locations, its installation is important from a safety standpoint. Page 21 efesotomasyon. Any emergency-stop switch should turn off all machine power by turning off the master control relay.
Note The illustrations only show output circuits with MCR protection. In most applications input circuits do not require MCR protection; however, if you need to remove power from all field devices, you must include MCR contacts in series with input power wiring.
Page 23 efesotomasyon. Page Using Surge Suppressors - Allen Bradley,Rockwell,plc,servo,drive MicroLogix Programmable Controllers User Manual Preface Using Surge Suppressors Inductive load devices such as motor starters and solenoids require the use of some type of surge suppression to protect the controller output contacts. Switching inductive loads without surge suppression can significantly reduce the lifetime of relay contacts.
Page 25 Installing Your Controller Suitable surge suppression methods for inductive ac load devices include a varistor, an RC network, or an Allen-Bradley surge suppressor, all shown below. These components must be appropriately rated to suppress the switching transient characteristic of the particular inductive device. See the table on page 1—10 for recommended suppressors. Page Safety Considerations efesotomasyon. Actively thinking about the safety of yourself and others, as well as the condition of your equipment, is of primary importance.
We recommend reviewing the following safety considerations. Page Power Considerations efesotomasyon. Isolation Transformers You may want to use an isolation transformer in the ac line to the controller. This type of transformer provides isolation from your power distribution system and is often used as a step down transformer to reduce line voltage. Page Preventing Excessive Heat efesotomasyon.
Ensure that the specified operating range is maintained. Proper spacing of components within an enclosure is usually sufficient for heat dissipation. Refer to appendix A for controller dimensions. Explosion Hazard — For Class I, Division 2 applications, this product must be installed in an enclosure. Page 33 efesotomasyon. To install your controller on the DIN rail: 1. Mount your DIN rail. Mounting 1. Use the mounting template from Page Wiring Your Controller efesotomasyon.
Topics include: grounding guidelines sinking and sourcing circuits wiring recommendations wiring diagrams, input voltage ranges, and output voltage ranges 2— Use the heaviest wire gauge listed for wiring your controller with a maximum length of Run the ground connection from the ground screw of the controller third screw from left on output terminal rung to the ground bus.
Type Definition The input energizes when high-level voltage is applied to the input terminal Sinking Input active high. Page 39 efesotomasyon. The input and output terminals of the micro controller are designed for the following spade lugs: Call-out Dimension 6. Failure to remove the wrap may cause the controller to overheat. Calculate the maximum possible current in each power and common wire. Controllers with dc inputs can be wired as either sinking or sourcing configurations.
Page 43 efesotomasyon. Page 45 efesotomasyon. Page 47 efesotomasyon. Page 49 efesotomasyon. Page 51 efesotomasyon. Page 53 efesotomasyon. Refer to pages 2—21 through 2—23 for additional information on analog wiring. Analog 14—30V dc Page Minimizing Electrical Noise On Analog Controllers A system may malfunction due to a change in the operating environment after a period of time.
We recommend periodically checking system operation, particularly when new machinery or other noise sources are installed near the MicroLogix system. The analog output can support either a voltage or a current function. Refer to chapter 12 for information on using the high-speed counter. Page Connecting The System efesotomasyon. The method you use and cabling required to connect your controller depends on what type of system you are employing.
This chapter also describes how the controller establishes communication with the appropriate network. Descriptions of these methods follow. Page 61 9-Pin Using a Modem You can also use modems to connect a personal computer to one MicroLogix controller using DF1 full-duplex protocol or to multiple controllers using DF1 half-duplex protocol , as shown in the illustration that follows. Do not attempt to use DH protocol through modems under any circumstance. MicroLogix Series C or later discrete or MicroLogix analog Page 64 Allow enough extra cable to prevent chafing and kinking in the cable.
Use these instructions for wiring the Belden A or cable. Page 65 efesotomasyon. Page 71 45 cm Page 72 If you are making a cable to connect to port 2, you must configure your cable to connect to the Allen-Bradley cable shown above. On port 1, pin 4 is electronically jumpered to pin 6. Page 73 This connection must be made whether or not an external 24V dc supply is used. The default setting for this bit is DF1 0. If the primary protocol bit is set to DF1, the MicroLogix controller will attempt to connect using the configured DF1 protocol; either full-duplex or half-duplex slave.
Read this chapter for basic information about: principles of machine control understanding file organization and addressing understanding how processor files are stored and accessed Page Principles Of Machine Control - Allen Bradley,Rockwell,plc,servo,drive MicroLogix Programmable Controllers User Manual Preface Principles of Machine Control The controller consists of a built-in power supply, central processing unit CPU , inputs, which you wire to input devices such as pushbuttons, proximity sensors, limit switches , and outputs, which you wire to output devices such as motor starters, solid-state relays, and indicator lights.
Page 79 efesotomasyon. This file contains other files that break your program down into more manageable parts. Page 81 efesotomasyon. The RAM provides easy access storage i. Page 83 efesotomasyon. If for some reason power is lost Page 85 efesotomasyon.
Page 87 efesotomasyon. Addressing examples are shown in the table below. Page 88 - Allen Bradley,Rockwell,plc,servo,drive MicroLogix Programmable Controllers User Manual Preface You can also address at the bit level using mnemonics for timer, counter, or control data types.
The available mnemonics depend on the type of data. See chapters 6 through 13 for more information. Page 89 efesotomasyon. These files are addressed with the sign. In the following illustration, the electromechanical circuit shows PB1 and PB2, two pushbuttons, wired in series with an alarm horn. PB1 is a normally open pushbutton, and PB2 is normally closed. Functional Specification Identify the hardware requirements. Perform Match inputs and outputs with actions of the process.
The default is all input channels enabled. The two voltage inputs accept Page Converting Analog Data efesotomasyon. There are six terminals assigned to the input channels that provide two voltage inputs, two current inputs and two return signals commons. The analog outputs can support either a current or voltage function. For example, if an input value of 16, is in the input image, the calculated value is: Page Using Basic Instructions efesotomasyon.
Each of the basic instructions includes information on: what the instruction symbol looks like typical execution time for the instruction how to use the instruction In addition, the last section contains an application example for a paper drilling Timer Off-Delay Counts timebase intervals when the instruction is 6— Page Bit Instructions Overview efesotomasyon. During operation, the controller may set or reset the bit, based on the logical continuity of ladder rungs.
You can address a bit as many times as your program requires. Note Using the same address with multiple output instructions is not recommended. When the instruction is executed, if the bit addressed is on 1 , then the instruction is evaluated as true. Page Output Energize Ote efesotomasyon. Page - Allen Bradley,Rockwell,plc,servo,drive MicroLogix Programmable Controllers User Manual Preface Using OTL When you assign an address to the OTL instruction that corresponds to the address of a physical output, the output device wired to this screw terminal is energized when the bit is set turned on or enabled.
Page One-Shot Rising Osr efesotomasyon. Use the OSR instruction when an event must start based on the change of state of the rung from false to true. Word 0 is the control word, word 1 stores the preset value, and word 2 stores the accumulated value. Page efesotomasyon. Timing accuracy is —0. The 1-second timer maintains accuracy with a program scan of up to 1. PRE Preset value of the timer T ACC Accumulator value of the timer T Page Timer On-Delay Ton efesotomasyon.
Time Base DN Preset DN bit remains set. EN bit is set. ACC value is reset. The RTO instruction is a retentive instruction that lets the timer Page Counter Instructions Overview efesotomasyon.
If the rung is true: EN bit remains set. ACC value remains the same and resumes incrementing. Preset Value PRE Specifies the value which the counter must reach before the controller sets the done bit.
PRE Preset value of the counter C ACC Accumulator value of the counter C Page Count Down Ctd efesotomasyon. The rungs are part of the paper drilling machine application example described in appendix E.
However, another condition must also be met before we start the conveyor: the drill must be in its fully retracted position home. Page Using Comparison Instructions efesotomasyon. Each of the comparison instructions includes information on: what the instruction symbol looks like typical execution time for the instruction how to use the instruction In addition, the last section contains an application example for a paper drilling As an example, suppose a LES instruction is presented with two values.
Page Equal Equ efesotomasyon. If these values are not equal, the Source B instruction is logically false. If the value at source A is less than or equal to the value of Source B source B, the instruction is logically true. Use of this instruction allows portions of the data to be masked Mask by a separate word.
If the Test value is equal to either limit or outside the limits, the instruction is true, as shown below. As the current bit wears out, a light illuminates on the operator panel, below, to warn the operator to change the drill bit. Page Using Math Instructions efesotomasyon. Each of the math instructions includes information on: what the instruction symbol looks like typical execution time for the instruction how to use the instruction In addition, the last section contains an application example for a paper drilling The majority of the instructions take two input values, perform the specified arithmetic function, and output the result to an assigned memory location.
Source A and B can either be a word address Source B or constant. Page Subtract Sub efesotomasyon. Page Divide Div efesotomasyon. If the remainder is 0. Page Clear Clr efesotomasyon. All of the bits reset. The rounded result is added to the offset value and placed in the destination. The input value range is 0V to 10V which corresponds to 0 to 31, counts. The scaled value range is 0 to percent.
Page Using Data Handling Instructions efesotomasyon. Each of the instructions includes information on: what the instruction symbol looks like typical execution time for the instruction how to use the instruction In addition, the last section contains an application example for a paper drilling Page Convert To Bcd Tod efesotomasyon.
The destination parameter can be a word address in a data file, or it can be the math register, S and S The maximum BCD value is Page Convert From Bcd Frd efesotomasyon. You must reset the Minor Error Bit S Page Encode 1 Of 16 To 4 Enc efesotomasyon. The corresponding bit position is Dest written to the destination as an integer as shown in the table below.
After an instruction is executed, the arithmetic status bits in the status file are It uses no status bits. If you need an enable bit, program an output instruction OTE in parallel using an internal bit as the output address. The following figure shows how file instruction data is manipulated. The instruction fills the words of a file with a source value. If you need an enable bit, program a parallel output that uses a storage address. Entering Parameters Source is the address of the value on which the logical or move operation is to be performed.
Page Move Mov efesotomasyon. See the following figure. Source B Page Or Or efesotomasyon. Page Not Not efesotomasyon. The first word in is the first word out.
LIFO instructions load words into a file and unload them in the opposite order as they were loaded. The control structure stores the status bits, the stack length, and the position value. Do not use the control file address for any other instruction. This unloads the contents of the element at stack position 0 into the This loads the contents of the Source, N, into the stack element True False indicated by the Position number, 9. This is done because the controller operates upon integer values.
If this were allowed, the drill bit life calculation could be defeated resulting in poor quality holes due to a dull drill bit. Each of the instructions includes information on: what the instruction symbol looks like typical execution time for the instruction how to use the instruction You must program this instruction as the first instruction of a rung.
This instruction has no control bits. You can program multiple jumps to the same label by assigning the same label number to multiple JMP instructions. Browse Tech Doc Center. Search Literature Library. Get Answers. Chevron Up Chevron Up. Product Compatibility and Migration Solutions Demanding market conditions pose significant challenges. Technical Documentation Center Details Details.
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