ControlLogix Messaging – RSLogix MSG Instruction

The Message (MSG) instruction is an instruction in RSLogix 5000 reads or writes a block of data to another module on a network. MSG instruction is available in Ladder logic but not in function block language. Different From Produce / Consume Model You can send data between processors by using the produce and consume method. [...]

ControlLogix Message Instruction Path

To write a message instruction (MSG) in ControlLogix one needs to give it a path to define where it needs to go. Following is how to set that communication path. The path looks something like this: What do the numbers mean? Pay attention that the numbers below don’t necessary correspond to the position in the [...]

How to Inhibit a Task Programmatically in ControlLogix

To programmatically inhibit a task in ControlLogix (RSLoigx 5000) you have to use the SSV instruction.

ControlLogix Coordinated System Time

In ControlLogix the coordinated system time is 64 microseconds.

ControlLogix Flashing Green I/O LED Controller

In ControlLogix flashing green I/O LED means Problem with I/O configuration however it is not a major fault.

ControlLogix Flashing Red OK LED on Controller

In ControlLogix a flashing red Ok LED on the controller mean Major Fault.