Posts

Basic Overview of ET200 SP HA

Image
The high-performance I/O system SIMATIC ET 200SP HA – perfectly matched to the requirements of the process industry and with clear advantages wherever ruggedness and maximum availability are important in the process and manufacturing industry. Benefits Availability: Redundancy at the PROFINET interface (S2 or R1) Hot swapping during runtime station expansion possible during runtime Easy to Use: Compact modules with permanent wiring. One terminal block for all 24 V standard signals Tool-free connection system with push-in-terminals Compact Design Compact with up to 56 i/o modules per station High concentration of up to 32 channels on a module that is only 22.5 mm wide System-integrated power bus Seamless integration in SIMATIC PCS new PROFINET IO communication standard Functions Main functions Compact I/O modules Up to 32 channels on a module that is 22.5 mm wide Up to 56 modules per station Perfectly suited for applications in the field Installation up to hazardous zone 2 Extended temp...

FAQ#1

what are the various possible way of communication with OP27. how to check transfer setting as unable to enter transfer settings?? 1. Power OFF. 2. Keep pressed ESC+Aroow UP 3. Power ON. 4. System switches to Download Mode. (you will see a message). 5. Release the buttons. I am using   Siemens PLC (S7-200 CPU  .Micro Win V4.0  SP 8, and for communication  am using ppi adapter.the plc can not communicate with the computer .it gives me   "The port cannot be opened, or  is being used by by another application. Shutdown all applicatons, look in your startup folder for applications that might use the same (pc) port. Restart PC. Start microwin and select right pc/pg interface. Put CPU in stop mode and try again.  

Difference Between Thermocouple and RTD

What is the Difference between thermocouple and RTD? The most notable difference between a thermocouple and an RTD (Resistance Temperature Detector) is the principle of operation.   A thermocouple operates on the principle that two dissimilar metals joined together will produce a voltage related to a temperature difference. An RTD operates on the principle that electrical resistance of certain metals changes in a predictable way depending on the rise or fall in temperature. Advantages of the thermocouple include a wide temperature measuring range (depending on the thermocouple type the range can be as much as from -300°F to 2300°F), fast response time (under a second in some cases), low initial cost, and durability. Overall, thermocouples are able to withstand rugged applications.    Advantages for RTDs include stable output over a long period of time, ease of recalibration, and accurate readings over narrow temperature spans. Disadvantages, when compared to the ther...

Basic Concept of Y link and its module.

Image
Basics Of Y link structure and Its module Y link is used to connect the Single DP salve system to Redundant Master DP system. It consist of Two IM 153-2 and Y couple with backplane bus. When DP slaves are connected to Y link then it forms the separate individual Profibus network. The Y link creates a gateway from a redundant DP master system to a unilateral DP master system. Below is the brief architecture of Y link:   Steps to incorporate in Hardware Configuration: 1. Select the IM from the hardware catlog 2. Drag and Drop on the Profibus network of H system and check the properties 3. Select wether to define as PA link or Profibus Y link as per below 4. Finally it will come as per below. Add single port DP slaves on the new network created. Important Points 1.  The Y Link 6ES7197-1LA12-0XA0 comprises the following hardware components: Hardware component Article number 2 x IM 153-2 6ES7153-2BA70-0XB0 1 x Bus module IM/IM 6ES7195-7HD80-0XA0 1 x Y Coupler 6ES7197-1LB00-0XA0 1 ...