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  1. Hello, -I'm considering using an AB 1734-IB8 to count input pulses from a Micro Motion flow meter transmitter and, since I'm very new to this stuff, would like a little guidance as to how/if this can be done.       My first concern is the wiring. The manual for the transmitter shows this wiring diagram for the specific model I'm using.       Here, B would represent the 1734-IB8 module. I'm not going to be using the analog loop. In addition to this wiring, terminals 9 & 10 on the transmitter will be wired to the same 24V and Common as my PLC modules.        The 1734-IB8 manual shows this diagram for wiring.       Should I consider the pulse output of the transmitter as a 3-wire device, connect terminal 3 of the transmitter to my 1734-IB8 input terminal and disregard the connection from terminal 4 of the transmitter, or should I just tie terminal 4 to my common? Or, Should I consider my pulse output as a 2-wire device, tie terminal 3 of the transmitter to my 24V and terminal 4 to my input module? My guess is the pulse output should be considered a 3-wire device with terminal 4 of the transmitter tied to my common, but I'd like a little bit of explanation with this. -My second main concern has to do with the capability of the 1734-IB8 module to read pulses. More specifically, I would like to know what parameters of the module I need to research to see if it will be possible to read the pulses from my transmitter in the application I'm considering. If the 1734-IB8 can't be used, I would end up going to a high-speed counter card.   Thanks  
  2. TOTAL FLOW OR TOTALIZER

    Hi there .. i am new to plc... i have flow rate in m3/h and i want total flow or totalizer ... what is the formula for that and how can i implement it in gx developer. any kind of help will be a life saver.
  3. Please assist me with the following; regarding the ME96SSHA-MB Power meter data transition with Melsec-Q series PLC; We acquire to read various values on dedicated Modbus storage address registers at the simultaneous into a Melsec-Q series PLC via Modbus (TCP or RTU)  for calculation purposes. Naturally, since the reading of these variables are to provide accurate instantaneous results, it is a requirement that these values are to be read at one scan.   However, as can be seen below, there is a gap in address register range – of which, if all of these are scanned simultaneously, yields an exception error when read. This error is only avoided by scanning these data sets separately – which is not ideal for our application – since accuracy in calculations is imperative.
  4. Please assist me with the following; regarding the ME96SSHA-MB Power meter data transition with Melsec-Q series PLC; We acquire to read various values on dedicated Modbus storage address registers at the simultaneous into a Melsec-Q series PLC via Modbus (TCP or RTU)  for calculation purposes. Naturally, since the reading of these variables are to provide accurate instantaneous results, it is a requirement that these values are to be read at one scan.   However, as can be seen below, there is a gap in address register range – of which, if all of these are scanned simultaneously, yields an exception error when read. This error is only avoided by scanning these data sets separately – which is not ideal for our application – since accuracy in calculations is imperative.
  5. I have a "paddle wheel" style flow meter that I am trying to wire to my Micrologix 1400. It is a three wire device and there is a tag on it that says it can run at 6-36VDC. So, naturally, I thought to wire this to one of the HSC inputs of the Micrologix directly. I hooked the ( + ) on the meter to 24V, ( - ) on the meter to common, signal to the oscilloscope, and ground on the scope went to common. I see a small 60Hz sine wave @ like 5mv when the wheel is not turning. When the wheel is turning I get a small square wave but in the same mV range. It is not a nice smooth square wave either its all jumbled up with the 60Hz sine wave.  I hooked this thing up to a transmitter and scoped the signal and ( - ) in parallel with the wheel - I get a nice smooth square wave signal when the wheel turns. It is only at 4.5V though. My questions are? Why does't the paddle wheel give me what I am expecting directly? Also, what is the voltage range on the pulse that a micrologix will see? I am assuming that it will not count a wave with a 4.8V amplitude.... Thanks for your help in advanced! neech   
  6. We have a contract to refurbish/upgrade a filling/bottling machine. We have the machine but not its control panel or PLC. We've built a new control panel based on the original drawings. We've changed the obsolete 1756-MVI/A serial comms modules to ProSoft MVI56E-MCM modules. These two comms modules are to talk to sixteen (16) Endress & Hauser Promass 63MT08-WOW00A9092B mass flow meters - each module talks to 8 of the 16 meters on separate RS-485 networks. My problem at the moment is that there seems to be no way of knowing the port configuration parameters (i.e. baud rate, data bits, stop bits, parity etc.) without having the original 1756-MVI modules. I should add that these meters are 'blind' with no built-in keypad or display for programming or querying the program. I've approached E&H in the hope that they would have a method of extracting the configuration from the meters but they are saying that the meters are so old that all their expertise and equipment for performing such a task is no longer around. I'm going to attempt to track down the original equipment manufacturer in the hope that they may have kept records. Other than connecting up to a meter and trying multiple combinations of settings in the hope that we hit on the right one, does anyone have any ideas on how we can make progress with this? Also, the meters use what appears to be E&H's proprietory Rackbus protocol. The original 1756-MVI modules could talk to them (presumably!). Any ideas if the new ProSoft modules will be able to?
  7. Version 1.0.0

    66 downloads

    This file is an example showing how the sequence diagram template is used. This file is in .pdf form but is available as a Visio file. Message me through this forum to request a copy.
  8. View File Sequence Diagram Example This file is an example showing how the sequence diagram template is used. This file is in .pdf form but is available as a Visio file. Message me through this forum to request a copy. Submitter pop29684 Submitted 09/07/16 Category Tutorials and Guides
  9. Version 1.0.0

    47 downloads

    This is a simple sequence diagram format I have developed and used. You may or may not find it to be helpful. This file is in .pdf format but if you message me through this forum I can send you the Visio file. I am offering the Visio file without charge, and without copyright restriction.
  10. View File Simple Sequence Diagram This is a simple sequence diagram format I have developed and used. You may or may not find it to be helpful. This file is in .pdf format but if you message me through this forum I can send you the Visio file. I am offering the Visio file without charge, and without copyright restriction. Submitter pop29684 Submitted 09/07/16 Category Tutorials and Guides
  11. Version 1.0.0

    4 downloads

    The OMNI Flow Computer driver provides the ability to communicate with the OMNI 3000 and 6000 family of flow computers. It supports both real-time communications and Electronic Flow Measurement (EFM) for historical data. For real-time only communications, the OMNI Flow Computer driver can be purchased individually or as part of theOil and Gas Suite. For applications requiring EFM and real-time communications, the OMNI Flow Computer driver can be purchased as part of the EFM Suite. EFM capabilities include scheduling and exporting EFM History, Alarms, and Events data to industry standard and custom formats. Features - OMNI.Net Client (Master) for communication with OMNI Slaves (Via standard PC serial ports, USB adapters; RTU and ASCII encapsulation in TCP/IP as well as Modbus TCP) - Supports all OMNI devices which uses flavor of OMNI Protocol. - Supports 1,3,5,7,9,11,13,15,17 memory types - Can read up to 128 Words of Input / Holding registers or 2000 Bits of Discrete Coils / Input coils in one transaction. - Performance - 500mhz Pentium - 10 words: 15msecs - 100 words: 35msecs (avg) - Full implementation of Class 0 and Class 1 OMNI protocol functions as well as a subset of the most commonly used Class 2 functions  This driver can be conviniently used with Visual Studio in development of complete large scale complex HMI/SCADA Systems. It can be used to perform advanced reporting MES, analytics, IoT, Big data type apps. One example is available to download here For More Info Overview of Parijat Drivers: Click here  Additional supporting Info about Parijat Drivers:Click here Complete Related Driver options: Click here    
  12. Omni Flow Computer Driver for HMI/SCADA View File The OMNI Flow Computer driver provides the ability to communicate with the OMNI 3000 and 6000 family of flow computers. It supports both real-time communications and Electronic Flow Measurement (EFM) for historical data. For real-time only communications, the OMNI Flow Computer driver can be purchased individually or as part of theOil and Gas Suite. For applications requiring EFM and real-time communications, the OMNI Flow Computer driver can be purchased as part of the EFM Suite. EFM capabilities include scheduling and exporting EFM History, Alarms, and Events data to industry standard and custom formats. Features - OMNI.Net Client (Master) for communication with OMNI Slaves (Via standard PC serial ports, USB adapters; RTU and ASCII encapsulation in TCP/IP as well as Modbus TCP) - Supports all OMNI devices which uses flavor of OMNI Protocol. - Supports 1,3,5,7,9,11,13,15,17 memory types - Can read up to 128 Words of Input / Holding registers or 2000 Bits of Discrete Coils / Input coils in one transaction. - Performance - 500mhz Pentium - 10 words: 15msecs - 100 words: 35msecs (avg) - Full implementation of Class 0 and Class 1 OMNI protocol functions as well as a subset of the most commonly used Class 2 functions  This driver can be conviniently used with Visual Studio in development of complete large scale complex HMI/SCADA Systems. It can be used to perform advanced reporting MES, analytics, IoT, Big data type apps. One example is available to download here For More Info Overview of Parijat Drivers: Click here  Additional supporting Info about Parijat Drivers:Click here Complete Related Driver options: Click here     Submitter Scadadoctor Submitted 03/10/16 Category Other PLC Demo Software
  13. PAROCK1 for HMI/SCADA View File Now a software solution is available for your Modbus (MB) needs in Rockwell/Allen-Bradley Control Logix or Compact Logix (Clgx) family processors, instead of a traditional 3rd party hardware like Prosoft MVI-56, Molex SST-SR4-CLX-RLL etc.  It is an Add-on instruction (AOI) for PLC/PAC firmware v16 or later, (other solutions are available for pre v16 systems).  For hardware interface, use PLC’s channel 0 (serial) or TCP/IP Interface module(s) to have as many MB TCP/IP devices or serial devices.  (Some limits apply based on system configurations, Comm. settings depending on HW used.) Connect any MB Client/Master or Server/Slave device(s) to your CLgx PLC, including flow computers, analyzers, VFDs, Power Monitors, Level gauges, Smart I/O, etc.  All the MB public/native function codes are supported.  32-Bit integers/floats as single entity are supported with byte and word level swapping. A separate utility automates the data mapping to your PLC logic.  Features -Serial Master (BASIC required Option); TCP; Slave; Redundancy; More than 5000 accumulative registers; MB CFC (Custom/Private Function Code) Support; Data mapping too – Between PAROCK1 & your PLC logic; Packaged with Rockwell; TCP/IP Interface Module; Volume Discounts; Annual Support Requirements -Rockwell/AB-CLgx processor with v16 or later.  Contact PCI for earlier versions. -If using CPU’s Chan0, you cannot use Chan0 for any other user mode activity. You can use it for non-user mode activities -TCP/IP Interface Modules from Rockwell/AB supported, are: -1756-EN2xx ControlLogix® Ethernet/IP communication modules, firmware revision 5.007 or later -1756-EWEB ControlLogix Ethernet/IP web server module, firmware revision 4.006 or later -1768-EWEB CompactLogix Ethernet/IP web server module, firmware revision 1.002 or later -1769-L30ER, 1769-L30ERM, 1769-L30ER-NSE, 1769-L33ER, 1769-L33ERM, and 1769-L36ERM CompactLogix controllers, firmware revision 20.011 or later -1769-L24ER-QB1B, 1769-L24ER-QBFC1B, 1769-L27ERM-QBFC1B CompactLogix controllers, firmware revision 20.011 or later -1769-L16ER, 1769-L18ER, 1769-L18ERM CompactLogix controllers, firmware revision 20.011 or later Other Related Services/Items -Custom PLC Add-on instructions building -PLC upgrades, troubleshooting, applications -PC Windows, iOS5, Linux, Mobile devices Comm. Drivers -Custom development, Technology Transfer Services  -Other Non-AB communication drivers for serial or TCP  -Full control system integration, training, architecture design This driver can be conviniently used with Visual Studio in development of complete large scale complex HMI/SCADA Systems. It can be used to perform advanced reporting MES, analytics, IoT, Big data type apps. One example is available to download here For More Info Overview of Parijat Drivers: Click here  Additional supporting Info about Parijat Drivers:Click here Complete Related Driver options: Click here     Submitter Scadadoctor Submitted 03/10/16 Category Other PLC Demo Software
  14. I need to make a setup like the readings in the energy meter should be a GSM then from this GSM the data should be sent to another GSM using Twido PLC.,please help me how to establish this connection. (Energy meter ----+ Twido PLC----+GSM) data from this should go to another similar set up (GSM----+Twido PLC---+Energy Meter) I dont know is this possible or not please help me,,
  15. Hello Everyone, I am new to ladder logic, and trying to understand flow of below attached ladder logic- How does the program flow ? Does PT4601_I in rung 3 waits for rung 2 to complete inorder to consider updated value of PT4601_I or it consider PT4601_I default value and runs simultaneously with rung 2 ? Thank you in advacne
  16. Daily logging of flow in WinCC

    Hello, I am working on a Siemens S7-300 PLC with a WinCC HMI and I am looking to perform logging of certain values every 12 or 24 hours. Basically I have a Flow meter that constantly has flow through it. Right now I have the PLC set up to record the current value of the flow, as well as a totalizer to indicate how much flow has gone through the valve. (until an operator chooses to reset it) I need to create some sort of logic or utilize something in WinCC to calculate the flow through the valve only for that day. After that day, the value will be either deleted or replaced with a new value the next day... If anyone has any tips or advice it would be greatly appreciated. Thank you,
  17. Hi Good Day, I need a suggestion, I have an omron encoder, encoder counter meter (K3NC-NB1A) and communication card RS-232C 25pins (K31-FLK1). My question is, what is the best omron software to read and manipulate the data from the encoder (I have CX-one software but I only use CX-programmer). I want to capture the encoder pulse and convert to velocity, acceleration, deceleration and also energy absorbtion. I have to use mathematical formula such as two times differentiation. I also need to show grapf and display final result that is energy absorbtion reading. Or is it much simple if I use VB / labview / java software? Thank you in advance
  18. Micrologix 1400 HSC:0 Looking for a configuration example. Using a gas meter with a contact output representing x pulses per cubic foot of gas. Want to calculate flow rate and totalize.
  19. Dear All, I have a little problem in reading data from Power Meter to Vijeo Citect v6.0 I'm using Schneider PM810MG for Energy reading from Power Meter and for the SCADA I'm using Vijeo Citect v6.0. I can do some simple data reading like current, voltage and the others using variable tags from Vijeo Citect with Data type INT. But i dont know how to read the data for "Real Energy In" since the data range from 0 to 9,999,999,999,999,999. Waiting for all your help soon. Thx. Best Regards, Budiman Chandra