SIMATIC C7 626

The SIMATIC C7 626 control systems combine a programmable controller and an operator panel in one unit. This enables complete machine control system to be implemented with minimum size, at an economical price.

Some applications of SIMATIC C7 626 control system are

General Engineering Systems

Special Machines

Plastic Industry Machines

Textile Machines

Tobacco Machines

Packing Machines

The SIMATIC C7 626 system can be operated in many types of environments.

The system consists of the following individual components:

SIMATIC S7 300 consisting of CPU, Signal Modules and interface board. The performance is about equal to SIMATIC S7 CPU 314 - 315 2DP.

Simatic Operator Panels OP3, OP7, OP17 or OP25.

The process control system SIMATIC PCS 7

The SIMATIC PCS 7 distributed control system enables you to respond swiftly to constantly changing market requirements. Integrated safety concepts ensure continuous operation of your systems and protect man, machine and the environment. The SIMATIC PCS 7 offers high system availability, investment security and future-safe technology, together with a reduced total cost of ownership.



SIMATIC PCS 7 offers more than a conventional process control system: a scalable system architecture, high performance engineering tools, additional features such as Alarm Management, Process Safety, Asset Management, a flexible modernization strategy of previously installed systems – all of these are unique advantages your business will benefits.

High-performance system components, redundancy on all levels, and engineering
tools that are easy to use – this is how SIMATIC PCS 7 offers you more reliability and increased performance across your entire system and the entire life cycle of your plant.

Getting Started with High Speed Counters in Siemens Step 7.... continue

Defining Counter Modes and Inputs

Use the High-Speed Counter Definition instruction to define the counter modes and inputs. This shows the inputs used for the clock, direction control, reset, and start functions associated with the high-speed counters. The same input cannot be used for two different functions, but any input not being used by the present mode of its high-speed counter can be used for another purpose. For example, if HSC0 is being used in mode 1, which uses I0.0 and I0.2, I0.1 can be used for edge interrupts or for HSC3.

Four counters have three control bits that are used to configure the active state of the reset and start inputs and to select 1x or 4x counting modes (quadrature counters only). These bits are located in the control byte for the respective counter and are only used when the HDEF instruction is executed.





Setting the Control Byte
After you define the counter and the counter mode, you can program the dynamic parameters of the counter. Each high-speed counter has a control byte that allows the following actions:
- Enabling or disabling the counter
- Controlling the direction (modes 0, 1, and 2 only), or the initial counting direction for all other modes
- Loading the current value
- Loading the preset value

Setting Current Values and Preset Values
Each high-speed counter has a 32-bit current value and a 32-bit preset value. Both the current and the preset values are signed integer values. To load a new current or preset value into the high-speed counter, you must set up the control byte and the special memory bytes that hold the current and/or preset values, and also execute the HSC instruction to cause the new values to be transferred to the high-speed counter. Table 6-29 lists the special memory bytes used to hold the new current and preset values. In addition to the control bytes and the new preset and current holding bytes, the current value of
each high-speed counter can only be read using the data type HC (High-Speed Counter Current) followed by the number (0, 1, 2, 3, 4, or 5) of the counter. The current
value is directly accessible for read operations, but can only be written with the HSC instruction.

Addressing the High-Speed Counters (HC)

To access the count value for the high-speed counter, specify the address of the high-speed counter, using the memory type (HC) and the counter number (such as HC0). The current value of the high-speed counter is a read-only value that can be addressed only as a double word (32 bits).

Getting Started with High Speed Counters in Siemens Step 7....

In this post, i will explain the use of high speed counters in Step-7 PLCs. Typically, a high-speed counter is used as the drive for a shaft timer, where a shaft rotating is fitted with an incremental shaft encoder. The encoder provides a specified
number of counts per revolution and a reset pulse that occurs once per revolution. The clock and the reset pulse from the shaft encoder provide the inputs to the high-speed counter.

The high-speed counter is loaded with the first of several presets, and the desired outputs are activated for the time period where the current count is less than the current preset. The counter is set up to provide an interrupt when the current count is equal to preset and also when reset occurs. Compare function is also used for this purpose to provide an interrupt when the current count is equal to the preset counts. We can easily use memory bits for the interrupt at different count positions i.e at different angels.

You can use the HSC Instruction Wizard to configure the counter. The wizard uses the following information:

Type and mode of counter, counter preset value, counter current value, and initial counting direction. To start the HSC Instruction Wizard, select the Tools, Instruction Wizard menu command and then select HSC from the Instruction Wizard window. To program a high-speed counter, you must perform the following basic tasks:

- Define the counter and mode.
- Set the control byte.
- Set the current value (starting value).
- Set the preset value (target value).
- Assign and enable the interrupt routine.
- Activate the high-speed counter.

to be continued....

Mitsubishi Q Series Input Module QX42D for High Speed Control....

[Features]
QX41-S1, QX42-S1
􀁹 High speed input module that provides response time 0.1ms.
(Response time is variable using GX Developer Version5 or later.)
􀁹 New positive common type 32-point and 64-point modules are now available, in addition to 16-point module
(QX40-S1).

QX42-S1 DC Input Module (Positive Common Type)
Type DC Input Module (Positive Common Type)
Specifications QX42-S1 Appearance
Number of input points 64 points
Isolation method Photocoupler
Rated input voltage 24VDC (+20/-15%, ripple ratio within 5%)
Rated input current Approx. 4mA
Input derating Refer to the derating chart.
ON voltage/ON current 19V or higher/3mA or higher
OFF voltage/OFF current 9.5V or lower/1.5mA or lower
Input resistance Approx. 5.6k
Set value 1 0.1 0.2 0.4 0.6 1
TYP. 0.05ms 0.15ms 0.30ms 0.55ms 1.05ms
OFF to ON
MAX. 0.12ms 0.20ms 0.40ms 0.60ms 1.20ms
TYP. 0.15ms 0.20ms 0.35ms 0.60ms 1.10ms
Response
time
ON to OFF
MAX. 0.20ms 0.30ms 0.50ms 0.70ms 1.30ms
Dielectric withstand voltage 560VAC rms/3 cycles (altitude 2000m (6557.38ft.))
Insulation resistance 10M or more by insulation resistance tester
By noise simulator of 500Vp-p noise voltage, 1 s noise width
Noise durability and 25 to 60Hz noise frequency
First transient noise IEC61000-4-4: 1kV
Level of protection IP2X
Wiring method for common 32 points/common (common terminal: 1B01, 1B02, 2B01, 2B02)
Number of occupied I/O points 64 (I/O assignment is set as a 64-point high speed input module)
Operation indication ON indication (LED), 32 point switch-over
Applicable connections 40-pin connector
Applicable wire size 0.3mm2 (For A6CON1)
Applicable wiring connector A6CON1, A6CON2, A6CON3, A6CON4 (Sold separately)
Applicable connector/terminal block
conversion module A6TBXY36, A6TBXY54, A6TBX70
5VDC internal current
consumption 90mA (TYP. all points ON)
Weight 0.18kg
QX42-S1
24VDC
4mA
QX42-S1

1: CPU parameter setting. (default: 0.2ms)
Response time is variable using GX Developer Version5 or later.
2: Pin number specifies the connectors; the first digit number “1” indicates left side connector and “2” indicates right side connector.
3: The LED displays X00 to X1F by turning the SW to F. It displays X20 to X3F by turning the SW to L.

FBs-1LC Fatek Load Cell input module...

Introduction

FBs-1LC is one of the analog input modules
of FATEK FBs series PLC. It can connect
one load cell input for weight measurement.
The conversion result is represented by a
signed 16 bit integer value. In order to filter
out the field noise imposed on the signal, it
also provides the average of sample input
function.

Specifications

Total Channels - One channel
Resolution- 16 bit (include signed bit)
I/O Points Occupied - 1 RI(Input Register) and 8 DO
Conversion Rate- 5/10/20/25 Hz selectable
Non-Linearity- 0.01% F.S. (@25℃)
Zero Drift- 0.2 μV/℃
Gain Drift- 10 ppm/℃
Excitation Voltage – 5V with 250Ω load
Sensitivity - 2mV/V, 5mV/V, 10mV/V, 20mV/V
Software Filter- Moving average
Average Samples- 1~8 configurable
Isolation- Transformer(Power) and photo-coupler(Signal)
Indicator(s) - 5V PWR LED
Supply Power- 24V-15%/+20%, 2VA
Internal Power Consumption- 5V, 100mA
Operating Temperature- 0 ~ 60 ℃
Storage Temperature- -20 ~ 80 ℃

Using Fiber Cams for timing and positioning......

The use of Cams is very common and easy for the positioning and timing setting for a moving shaft. It is the manual and the cheapest method for this application instead of using the digital shaft encoder. For Example if we look at the example of Packing machine when we want to sense the blank faulty packet of the soap on a specific angle or position of the shaft. Then we have to use encoder for this application i.e when the shaft is on at that angle the sensor sense the packet at that time only of that specific angle or position.

So, for this purpose we use encoder but if the timing is much more i.e 5 or 6 we can easily use a fiber cams for setting up the timing instead of a encoder. The main advantage is also that we can use the fiber cam with normal sensor i.e metal detector and can easily be connected with the normal input of the PLC, there is no need of any High speed input or High speed counter for the software to use this.

Well, the parameters used for the above mentioned setup for the plc program will that the sensor of the Cam will be our INBIT and the sensor of the fault i.e packet sensor will be the DATA BIT and then the both will generate the pulse at the same time the plc will start counting and will reject the packet at required counting of the shaft from the cam. For this, we use SHRB function in Siemens step 7 PLCs. The program example for this is also given below.

Using Fiber Cams for timing and positioning......

The use of Cams is very common and easy for the positioning and timing setting for a moving shaft. It is the manual and the cheapest method for this application instead of using the digital shaft encoder. For Example if we look at the example of Packing machine when we want to sense the blank faulty packet of the soap on a specific angle or position of the shaft. Then we have to use encoder for this application i.e when the shaft is on at that angle the sensor sense the packet at that time only of that specific angle or position.

So, for this purpose we use encoder but if the timing is much more i.e 5 or 6 we can easily use a fiber cams for setting up the timing instead of a encoder. The main advantage is also that we can use the fiber cam with normal sensor i.e metal detector and can easily be connected with the normal input of the PLC, there is no need of any High speed input or High speed counter for the software to use this.

Well, the parameters used for the above mentioned setup for the plc program will that the sensor of the Cam will be our INBIT and the sensor of the fault i.e packet sensor will be the DATA BIT and then the both will generate the pulse at the same time the plc will start counting and will reject the packet at required counting of the shaft from the cam. For this, we use SHRB function in Siemens step 7 PLCs. The program example for this is also given below.

Wonderware HMI/SCADA

HMI/SCADA solutions often impose complex demands on software architectures. Wonderware InTouch HMI Visualization, coupled with the award-winning ArchestrA-based Wonderware System Platform is uniquely positioned to meet these challenges.

Solutions built on ArchestrA technology benefit from a single, open and scalable software architecture that can connect to virtually any automation system, remote terminal unit (RTU), intelligent electronic device (IED), programmable logic controller (PLC), database, historian or business system in use today. The open nature of this platform enables users to expand their existing systems without having to buy new hardware or control systems.

Geographically dispersed applications, from a few hundred to one million I/O and from a single node to hundreds of stations, can be rapidly and securely implemented.

FLASHER OUTPUT IN PLC

This is the simple flasher for plcs. The output Q0.0 will turn on for a time and will then off after some time and then so on it will continue the sequence.

PID Control in FATEK PLC

Temperature Measurement of FBs-PLC and PID Control
FBs-PLC provides two kinds of temperature modules to meet the great temperature measurement applications.
One kind of these modules are directly interfacing with the thermocouple, and the others are interfacing with the RTD
sensor. The modules FBs-TC2/FBs-TC6/FBs-TC16 support 2/6/16 temperature channels correspondingly to connect
the J,K,T,E,N,B,R,S type of thermocouple. The modules FBs-RTD6/FBs-RTD16 support 6/16 temperature channels
correspondingly to connect the PT-100,PT-1000 type of RTD sensor. The total temperature inputs can be expanded up
to 32 channels at the most.
By the time domain multiplexing design method, each temperature module occupies 1 point of register input and 8
points of digital output for I/O addressing. The update rate for temperature reading value can be set as normal (Update
time is 4 second, the resolution is 0.1°) or fast (Update time is 2 second, the resolution is 1°).
The Winproladder provides the very user friendly table editing operation interface to configure the temperature
measurement, for example, selecting the temperature module, type of sensor, and assign the registers to store the
reading values… As to the temperature control, it has the convenient instruction FUN86(TPCTL) to perform the PID
operation to control the heating or cooling of the temperature process.
21.1 Specifications of temperature measuring modules of FBs-PLC
21.1.1 Thermocouple input of FBs-PLC
Specifications Module
Items FBs-TC2 FBs-TC6 FBs-TC16
Number of input points 2 Points 6 Points 16 Points
Thermocouple type and
temperature
measurement range
J(−200～900°C) E(−190～ 1000°C)
K(−190～1300°C) T(−190～ 380°C)
R(0～1800°C) B(350～ 1800°C)
S(0～1700°C) N(−200～ 1000°C)
I/O Points Occupied 1 IR(Input Register)、8 DO(Discrete Output)
Software Filter Moving Average
Average Samples NO、2、4、8 Configurable
Compensation Built-in cold junction compensation
Resolution 0.1°C
Conversion Time 1 or 2 Sec. 2 or 4 Sec. 3 or 6 Sec.
Overall Precision ±(1%+1°C)
Isolation Transformer(Power) and photo-coupler(Signal) isolation (per-channel isolation)
Internal Power
Consumption
5V，32mA 5V，35mA
Power Input 24VDC-15%/+20%、2VA max
Indicator(s) 5V PWR LED
Operating Temperature 0～60 °C
Storage Temperature -20～80°C
Dimensions 40(W)x90(H)x80(D) mm 90 x90 x80mm
21-2
21.1.2 RTD input of FBs-PLC
Specifications Module
Items FBs-RTD6 FBs-RTD16
Number of input points 6 Points 16 Points
RTD type and
temperature
measurement range
3-wire RTD sensor JIS(α=0.00392) or DIN(α=0.00385)
Pt-100(−200～850°C)
Pt-1000(−200～600°C)
I/O Points Occupied 1 IR(Input Register)、8 DO(Discrete Output)
Software Filter Moving Average
Average Samples NO、2、4、8 Configurable
Resolution 0.1°C
Conversion Time 1 or 2 Sec. 2 or 4 Sec.
Overall Precision ±1%
Isolation Transformer(Power) and photo-coupler(Signal) isolation (per-channel isolation)
Internal Power
Consumption
5V，35mA 5V，35mA
Power Input 24VDC-15%/+20%、2VA max
Indicator(s) 5V PWR LED
Operating Temperature 0～60 °C
Storage Temperature -20～80°C
Dimensions 40(W)x90(H)x80(D) mm 90(W) x90(H) x80(D)mm
21.2 The Procedure of Using FBs Temperature Module
21.2.1 Temperature measurement Procedure
Start
Connect Modules to the expansion interface on PLC in
series and connect an external 24VDC source and
temperature measure input wires.
- - - - - - - Please refer to section 21.6 for setting and wiring.
Executing the WinProladder and configure the
configuration table address、Temperature register
address and working register in “Temp. configuration”
windows then you can read temperature value from
register directly.

MT8000i Series Widescreen HMI Panels

* Combined with 400Mhz RISC CPU & powerful EB8000 software,i Series elaborates the performance to the utmost.
* Adopted TFT LCD with LED backlights; ensuring no turning yellow phenomenon on the screen of i series after long period usage.
* Equipped with wide-screen, high quality LCD :
7” wide-screen LCD (480x234) is 50% pixels more than 5.6” LCD (320x234).
10” wide-screen LCD (800x480) is 25% pixels more than 10.4” LCD (640x480).
** 7” wide-screen LCD (800x480) provides equivalent resolution to 10” to satisfy customers’ need in high quality of display.
* Built-in power isolation technology makes i Series more reliable in noisy environment.
* Designed in direct connection of i Series USB client and PC USB interfaces, users can experience the convenience in USB 2.0 high-speed transmission.
* Equipped with built-in high-capacity SD card slot (except for MT6050i) making i Series store data, download project, upload/download recipe more easily.
* Equipped with 128MB extra-size flash memory storage; user program flexibility is up to 16MB; user storage space (ex. Event log, Data sampling) is up to 50MB.
* Equipped with 128MB extra-size flash memory storage; user program flexibility is up to 16MB; user storage space (ex. Event log, Data sampling) is up to 50MB.
* All MT8000 i Series supprot network through Ethernet 10/100 base-T.


LCD Display


High Contract , High Brightness and Widescreen TFT LCD
High-quality color displays with superior clarity, wide viewing angels
and durable lifespan.

MT8000 i support 65536[16bit] colors and provide finer and more vivid
visibility.Quick response in screens exchange; Smooth screens switch
without flashing.Clearly exhibit pictures, text and GIF dynamic files.


32-bit RISC Processor


Touch the screen and you can feel the power
of the fastest RISC processor used in any touch
screen on market. MT8000 i serioffers high performance features for the industrial environment.Even the most complicated graphics can be called up in a snap.

USB 2.0 Interface


The flexibility of USB interface enriches the functionality of MT8000 i.Each MT8000 is
equipped with 1 USB and 1 USB 2.0 interfaces which are not only for project download/upload and data storage but
also for connection to printer, bar code reader,mouse and a variety of USB devices.


Ethernet


Multiple MT8000s/PLCs can be connected
as a network through Ethernet 10/100 base-T.
Ethernet allows several MT8000s on the network
to exchange data at fast speed.Besides,any
MT8000 can access data from other MT8000s.
Users can also download project/data via
Ethernet in a short time.


Serial Port


Each MT8000i is equipped with 3
serial ports(except for MT6050i) which can connect to 3 different PLCs/controllers simultaneously.

Secure Digital Card


MT8000 i Series provide standard SD Card slot to
improve the efficiency of recipe file, data logging and
project downloading as well as simplify the data
processing.


Printer


Each MT8000 i supports USB or RS232 Printers.
High Reliability Touch Panel

Featured by high reliable industrial analog resistive touch panel, MT8000 i perform high touch accuracy. With high hardness and long lifetime, it conforms to your need of industrial environment.