Every PLC and HMI tutorial on plctr.com: project setup, ladder and structured text, communication, troubleshooting and commissioning, written from the plant floor.
Kepware OPC Configuration After opening the KepwareServerEx application on your computer or server with Kepware server installed, right-click on the connectivity tree under the project tab and create a new channel. If you want to know about OPC you can read the below article. What is Kepware OPC? … Read more
OPC Systems OPC is a client/server technology. One application acts as the server providing data, and the other acts as a client using data. OPC is a widely accepted industrial communication standard that enables the exchange of data between multi-vendor devices and control applications without any proprietary restrictions. With kepware, you can read the data on your various … Read more
If a Logix Designer project is online with a controller that communicates to or through the EtherNet/IP communication device, you can use the Logix Designer application to assign an IP address. To use the Logix Designer application to set the communication device’s IP address, follow these steps 1. In the Controller Organizer, right-click the EtherNet/IP … Read more
Allen Bradley SLC 500 Errors SLC 500 Major Error Codes can be found in: Processor Status in RSLogix 500 Data File S2 Status Errors S:6 = xxxxh (hex 0 to FFFF) Whenever major error is encountered bit S:1/13 – Major Error Halted Bit is set. S:54 – Last Major Error Fault Code mirrors the last error code value stored … Read more
OSR One Shot Rising – Rungs 3 and 4 use the OSR One Shot Rising bit. Pressing the Yellow Button once will turn on the Yellow Light. Pressing the Yellow Button again will turn off the Yellow Light. The OSR One Shot Rising has two bits. Storage bit – is used to remember the state of the … Read more
Allen Bradley PLC Programming Cable Supports RSLinx communications with DF1 driver Controllogix Flexlogix RSLogix 500 RSLinx Classic RS-232 Communication MicroLogix 1000 MicroLogix 1100 MicroLogix 1200 MicroLogix 1400 MicroLogix 1500 SLC-5/03 SLC-5/04 SLC-5/05 Serial Cable Pinout
DeviceNet Scanner Errors Numbers are significant: Numbers 63 and below are node numbers Numbers 64 and higher are error or status codes. Most status codes apply to one or more devices. This is shown by alternately flashing the code and the node number. If many codes and node numbers must be shown, the display cycles through them in … Read more
OperShelve The alarm instruction only processes the OperShelve tag on transition from cleared to set to prevent unwanted reshelving of the alarm. For example, if an operator presses a push button to shelve the alarm while the ProgUnshelve tag is set, the alarm is not shelved because the ProgUnshelve tag takes precedence. To shelve the … Read more
BootP DHCP Usage This tools useful for assign an IP address via DHCP and BOOTP for Allen Bradley products. 1. Connect your PLC and your PC to an Ethernet switch. 2. Go to Start Menu > Rockwell Software > BOOTP-DHCP Server and select the program BOOTP-DHCP Server. Your shortcut may vary on your computer but this … Read more
Timing Diagrams These timing diagrams show the sequence of analog alarm operations. Level Conditions Behavior Acknowledge Level Conditions Behavior No Acknowledge ROC Conditions Behavior Acknowledge ROC Conditions Behavior No Acknowledge
PLC Analog Alarm State These illustrations show the manner in which an analog alarm responds to changing alarm conditions and operator commands.
PLC Analog ALMA Function This information applies to the CompactLogix 5370, ControlLogix 5570, Compact GuardLogix 5370, GuardLogix 5570, Compact GuardLogix 5380, CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, and GuardLogix 5580 controllers. Controller differences are noted where applicable. The ALMA instruction provides level and rate-of-change alarming for any analog signal. Structured Text ALMA (ALMA,In,ProgAckAll,ProgDisable,ProgEnable) Operands Operand … Read more