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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

Hey, this may be an obvious question, but here goes: I have a CompactLogix L36ERM running RL5000 controlling one of our lead die cast machines. When I make a change to the program offline and need to download I always go and shut the machine down for safety reasons before downloading. One of our techs stopped the machine but left the control power and hydraulic pump on while downloading (something we are not supposed to do) when he finished downloading he switched it back to run mode and the machine closed on it's own and started right back up. This is a safety concern to me. We have a "close enable" tag that is true when all necessary conditions are met, and gets latched on when the machine is running in full auto. Before he downloaded the machine was at idle, meaning that the only way to close the machine would be to press the two dead-man switches to start the process. But, when he downloaded it started up automatically. Now I know the reason why is when the program was last saved, the "close enable" tag had a value of 1, it was latched on, so it bypassed the dead-man switches. A quick fix would be to save the program with that tag un-latched so that it can't start up on it's own after downloading. But, in case somebody saves the program while the machine is running and with that tag latched on, I need a better solution. Is there any tag or bit that goes true when a program is downloaded or when the mode of the PLC is switched from run to download to run? I want to manipulate that tag so that when I download it un-latches the "close enable" tag. I'm sure there is a way to do it, I'm just not even really sure what to search for in the online help. Any help is greatly appreciated. Thanks Howard

Hi all. I currently have a scenario where I connect with a SCADA (OPC using virtual com port) to an Controller (A-series) via E300 HMI using transparent mode. This setup works fine, no problems. I have now upgraded the E300 to the E1032 HMI with all the same settings, except the E300 was using an expansion Ethernet card and the E1032 is using the built-in Ethernet port. Now with the E1032 in place the SCADA (OPC) just cannot get healthy comms to the A series PLC. Am I missing something somewhere?

Hello everyone! I am not necessarily new to plc's but simply haven't had as much exposure to programming as I would like to have had over the years. I have a project that requires me to cycle three facility air compressors individually so that each one will aquire equal run time (approx) annually. Some requirements are: The start of the next one must overlap for a few minutes before the previous one shuts down, to avoid any loss of air pressure. Also, the system must run all three at once, upon power up, for a short period when the plant is first start up. The run times in this area are not critical either. I have a C200hs Omron PLC and I am using Cx Programmer to write the logic. So far I am using the one minute clock pulse to count down 5 or 6 hours between compressors and using timers to reset them. Does anyone think there is a way to use a shift register SFT to accomplish the same thing easier or? I am open to any suggestions as long as they're not vulgar. Lol. Thanks for any help!