TOUCH PLS TOUCHSCREEN PLS A NEW HORIZON IN PROGRAMMABLE LIMIT SWITCHES Touchscreen PLS and Graphical Operator Interface in One Unit Five Screen Sizes Available: 5" Color, 6" Monochrome, 8" Color, 9" Monochrome EL, and 10" Color Most-Advanced PLS with Leading- and Trailing- Edge Speed Compensation PLS Settings and Machine Data Totally Integrated with Your PLC Programmable Graphical Interface to Over 30 Models of PLCs Dynamic zeroing upon external command 32 PLS Programs 8 levels of security Brake-wear Monitor Built-in Motion Detector and Tachometer Angle ON/Angle OFF and Angle/ON/Time OFF Broken wire detection Short-Circuit-Proof Resolver Self Diagnostics Optically Isolated Inputs & Outputs SECTION D TOUCH PLS Touch PLS is a traditional PLS that's been combined with a touchscreen-based Graphical Operator Interface. No longer do you have to contend with LEDs, switches, pushbuttons, and keypads. Touch PLS graphically depicts your application, while providing machine settings and status and production data. All programming and fine-tuning of the PLS settings occurs in a Windows-type environment. While the unit comes with predesigned screens, AVG Automation's µwin software makes it easy to create or customize screens to suit your particular application. One size fits all! You don't need separate PLS and PLC operator interfaces when you use Touch PLS because it does double duty; serving as a PLS interface/control as well as an operator interface to the PLC. There's no need to clutter up your machine's operator panel with several different displays when Touch PLS does it all! It reduces panel space, which also reduces installation costs and hardware costs. Touch PLS Principle of Operation The Touch PLS, as shown in the block diagram, uses two processors, one for the PLS and the other to manage, display, and communicate to the PLC. The PLS processor reads its position signals from the resolver mounted on the machine's shaft. It controls position-based outputs independent of the interface processor, providing fast repeatable outputs. The PLS processor and the interface processor share information using a 1,024-register shared memory. The dynamic information, such as position, RPM, and output status, is available to the interface processor for display through registers. The interface processor also shares data with the connected PLC through a second set of 1,024 registers. This arrangement makes it easy to display data from both the PLC and PLS on one screen. In addition, 32 registers (16 in each direction) are used to exchange time-critical information between the PLS and PLC through the interface processor. These registers can be used to send position, RPM, and output status information to the PLC. D-7
pressing a button on a touch screen to select the program corresponding to the job. Remote selection of PLS programs may also be accomplished by a PLC. Leading- and Trailing-Edge Speed Compensation Touch PLS features a Speed Compensation (Rate Offset) to compensate for speed variations. The Rate Offset, individually programmable for each channel, is used to advance the PLS settings as a function of the machine speed Rugged, Reliable Resolver for Position Transducer The Touch PLS uses a resolver as a position transducer. Unlike incremental encoders, the resolver, along with its noiseimmune ratiometric converter, always gives true machine position even if the machine moved during a power outage. The resolver, due to its construction, is immune to temperature and humidity extremes and mechanical shocks and vibrations. Short-Circuit-Proof Resolver The Touch PLS uses AVG Automation's standard short-circuit-proof resolver circuit. Thus, in case of an accidental short in the resolver wiring, costly damage to the PLS resolver decoder and the resulting downtime is avoided. Broken-Wire Detection The Touch PLS features a broken resolver-wire detector to supervise the resolver input signal. The broken-wire detector will signal the fault output if the resolver is missing any signals. FEATURES: Highest Processing Speed Touch PLS uses AVG Automation's patented DMA technique, which converts the resolver's analog output signal to a digital form, then compares all the setpoints, and activates all the outputs in less than a millisecond. The high-speed ratiometric resolver-to-digital converter and the microscan time guarantees perfect machine operation at speeds up to 1,800 RPM. Multiple Program Storage The Touch PLS can internally store 32 independent programs for different jobs. With a pre-programmed Touch PLS for different product runs, the product change over is as simple as Pulse Programming Touch PLS can be fine-tuned while your machine is running. Either or both of the ON and OFF Setpoints can be incremented or decremented, or a fixed dwell can be incremented or decremented, as needed. Angle ON/Time OFF Touch PLS can be programmed to have its outputs turned ON at an angle and turned OFF after a programmed time by touching the screen. For example, Channel 12 can be turned ON at an angle of 100 and stay ON for a period of 2.45 seconds. Programmable Functionality: Brake and ModZ Touch PLS features a dynamic zeroing or ModZ (Modification Zero) to modify the zero reference point, independent of the actual resolver position. After the PLS receives the ModZ input, the resolver position is reset to zero. Touch PLS can also perform Brake Monitoring to satisfy the OSHA requirement. This PLS can be field-programmed to have Brake Monitoring Functionality (initiated by entering a Caution and Danger limit). If you do not select Brake Monitoring, the user must select ModZ or the unit defaults to normal PLS functionality. (If Brake Monitoring is selected, the unit cannot function as ModZ.) Flexible Group Assignment Touch PLS's Flexible Group Assignment can be a powerful and useful feature. When it is desirable to control several different machines linked to the same drive shaft, output channels may be grouped together into one of five independent sections. The base group is always PLS, while the other four groups (1-4) may be defined as PLS or ModZ type. Each PLS group has its own group offset, while each ModZ group has its own ModZ inhibit zone. Built-in Motion Detector and Tachometer Touch PLS has a built-in tachometer and motion detector. The motion detector energizes a relay when the RPM is between the programmed LOW and HIGH alarm values. D-8
8-Levels of Password Protection Touch PLS has a password protection feature eight levels deep. Up to eight different passwords that are user-programmable from the touchscreen, allow access to different screens in the Touch PLS, providing ultimate protection and security of machine settings. Touch PLS has Choice Of 6 Displays Touch PLS offers four different types of flat panel touchscreen displays to suit any application and its budget. Except for the size and availability of colors on the screen, all other features remain the same. 5" Color The 5" color LCD model offers 16 colors, high-contrast, 320 x 240-pixel resolution, and an 8 x 6 touch-cell grid. 5" Color The 5" active matrix color LCD model offers 16 bright colors, high-contrast, 320 x 240-pixel resolution, and an 8 x 6 touchcell grid. 8" Color The 8" color model provides 640 x 480-pixel resolution with 16 colors and a 16 x12 touch-cell grid. 9" Monochrome EL The 9" monochrome electroluminescent model provides 640 x 400-pixel resolution with three shades of amber and an 16 x 10 touch-cell grid. SECTION D 6" Monochrome The 6" monochrome model provides 320 x 240-pixel resolution with three shades of gray and an 8 x 6 touch-cell grid. 10" Color The 10" color model comes with a bright 640 x 480-pixel resolution, 16-color, flat panel display, and 16 x 12 touch-cell grid. D-9
Touch PLS-Total Integration With any PLC Network Until the advent of Touch PLS, the only way you communicated machine position, speed, or PLS status to your PLC network, was through hard-wired discrete outputs from the PLS to the PLC inputs. As far as the PLS program settings were concerned, they were simply not available to the PLC. Touch PLS can communicates to more than 30 different PLCs and their networks, or through a serial connection, such as A- B DH+, A-B Remote I/O, or Profibus. The entire PLS program can be either uploaded or downloaded to the PLC through the same bus connection. Hard PLS outputs are also available to activate the machine solenoids directly freeing the PLC's CPU from this task. Touch PLS Eliminates the Need for a Separate Operator Interface for Your PLC Touch PLS is a complete Graphical Operator Interface for use with the PLC in your system. Therefore, you do not need another OI for the PLC if you are using Touch PLS. It can communicate to your PLC, even while performing PLS functions. The OI part of Touch PLS is more than a pushbutton replacement. It offers functionality not possible with other discrete operator panels. Not only can it replace common panel components, such as pushbuttons, pilot lights, selector switches, etc. very economically, but you also have complex flexibility. With Touch PLS, your control panel is never obsolete. Any changes can be made in minutes on-line, off-line, or even remotely. µwin: The Windows-Based On-Line Software to Program PLC Screens and Customize PLS Screens Touch PLS is shipped with preprogrammed screens for PLS operation. However, with AVG Automation's µwin software, a user can modify or customize the screens to his or her imagination. The µwin software works with Microsoft Windows 3.11 or later. In addition to supporting advanced features like CAD drawing capability, library support, etc., µwin offers a tool box of commonly used panel components. The tool box helps create simple operator panels quickly without drawing. A library of several components are available on AVG Automation's web site to save valuable drawing time. With µwin, the user can develop screens off- or on-line. With the off-line feature, the screens can be developed in the convenience of your office or remotely, and then downloaded to the unit. With the on-line programming feature, you can develop the screens while the Touch PLS is operating and communicating to the PLC. This allows modifying screens without taking the Touch PLS off line. The program development can be done through a modem, allowing you to change the program on a Touch PLS virtually anywhere in the world. D-10
The operator can't push the wrong button Touch PLS panels display only the necessary controls that are needed for a particular function, and only when they are needed. Thus, not only can the machine's control panel be made far less cluttered; but, controls that are not needed at that moment are simply not available to the operator. This reduces possible operator confusion. And by locking out the operator's ability to touch the wrong control, using Touch PLS minimizes or eliminates damage and the resulting cost that could be caused by introducing inappropriate control signals to the machine. Multiple Language Displays Touch PLS units offer a unique multiple languages feature. Today, many production personnel do not speak English as a first language. Companies are finding they can convey information to these operators faster, and with less confusion, when the display is in the operator's native language. Studies have shown that in emergency situations, a person reacts fastest in that person's native tongue. AVG Automation's µwin programming software enables you to enter display messages in several different languages. Currently only English and Cyrillic character sets are available. This is not to say that µwin translates English-language phrases into those of other languages it only recognizes strings of ASCII characters. You can create up to 16 text strings (memory dependent) for each object each in a different language. (Please note the more screens and words you use, the more memory you use, and the fewer sets of text strings per object you can create.) To use this feature, a user will design a screen as usual, and enter text strings, where applicable, in as many languages as desired (16 max.). You do not have to design & maintain separate screens for each language. All your operator has to do is go to the language selection screen and select the language you've already programmed into the Touch PLS. All screens will then display their messages in the language selected. SECTION D D-11
TOUCH PLS SPECIFICATIONS Power Requirements: 5" Color and 6" Models: 24 VDC @ 18 W 8" Color Model: 24 VDC, 24 W 9"Amber EL Model: 115/230 VAC <40 VA or 24 VDC <40 VA 10" Color Model: 120 VAC ±10%, 50-60 Hz, @ 1 A or 24 VDC @ 1.25 A Operating Temperature: 5" Models: 32 to 122 F (0 to 50 C) 6" and 8" Models: 32 to 104 F (0 to 40 C) 9" Model: 32 to 140 F (0 to 60 C) 10" Model: 32 to 113 F (0 to 45 C) Position Resolution: 1 part in 1,000 (consult factory for higher resolution) Update Time: 1.5 msec PROGRAMMABLE PARAMETERS: Scale Factor: Programmable from 16 to 999, common to all PLS setup Position Offset: Programmable to full scale factor value, common to all PLS setup Number of PLS ON/OFF Setpoints: 112 per PLS setup Number of PLS Setups: 32 Speed Compensation: Leading and Trailing edge, programmable in scale factor units per 100 RPM, up to fullscale factor value. Each PLS output (channel) has its own speed compensation Motion Detector: LOW and HIGH motion limits, common to all PLS setups, programmable from 0-999 RPM Brake Monitor: Caution and Danger Limit, Stopping time 9.99 sec. max. Number of PLS outputs: 16 Dynamic Zero or ModZ Input or Brake Input: Modification Zero on the fly with an external input (edge triggered) or brake input Serial Communication: Via RS-485A port Broken Resolver Wire Detection: Indication for broken wire in I/O Status RESOLVER INTERFACE: Position Transducer: Resolver, AVG Automation Series RL100, RL101, E7R, and E8R. Resolver Cable: CBL-10T22-CXXX or CBL-10T22-MXXX Resolver Decoder: Ratiometric, tracks resolver shaft angle up to 1,800 RPM. Cable Length: 2,500 ft. max., shielded, twisted-pair. INPUTS/OUTPUTS: Electrical Specifications: I/O Power Input: 20 to 30 VDC @ 100 ma + user's loads N-Channel Sinking I/O Output Logic Levels: Logic TRUE: MOSFET ON, 0.2 V Max. @ 100 ma Logic FALSE: MOSFET OFF, 0.05 ma leakage @ 30 V Max. Current per Output: 600 ma Max. Current per Card: 2 A Output Isolation: 1,500 V Input Logic Levels: Logic FALSE: 6-30 VDC Logic TRUE: 0-1.5 VDC Input Isolation: 1,500 V P-Channel Sourcing I/O Output Logic Levels: Logic TRUE: MOSFET ON, 0.5 V Drop @ 100 ma Logic FALSE: MOSFET OFF, 0.05 ma leakage @ 30 V Max. Current per Output: 600 ma Max. Current per Card: 2 A Output Isolation: 1,500 V Input Logic Levels: Logic TRUE: 6-30 VDC Logic FALSE: 0-1.5 VDC Input Isolation: 1,500 V Display Size Resolution (pixels) Touch Cells Shades/ Colors Enclosure Ratings Color (Active) 5" 320 x 240 8 x 6 16 NEMA 4 Color 5" 320 x 240 8 x 6 16 NEMA 4 Monochrome 6" 320 x 240 8 x 6 3 NEMA 4, 4X Color 8" 640 x 480 16 x 12 16 NEMA 4 Amber EL 9" 640 x 400 16 x 10 3 NEMA 4X Color (Active) 10" 640 x 480 16 x 12 16 NEMA 4X D-12