Omron

Question 1

Global Variable and Device Variable

Answer 1

One can generate global variables accessible from various POUs. POUs include programs, functions, and function blocks.
A device variable is employed to access data stored in a device, such as a slave or unit, via a port that serves as an interface to an external device. This logical port is referred to as an I/O port.

Question 2

POU

Answer 2

POU in Omron Sysmac Studio refers to a Program Organization Unit, which is a modular block of code that performs a specific function within a larger program.

Question 3

OMRON Safety I/O Bus

Answer 3

Safety I/O can be freely placed and combined on the NX bus master and mixed with standard I/O

SI => two types, SIH400: 4 points input and 2 points outputs with PNP Sinking . SID800: 8 points input and 2 points outputs with PNP Sinking
SO => two types, SOH200 and SOD 400 with PNP outsourcing

Question 4

NX Bus Master

Answer 4

The NX series from Omron does not have a dedicated bus master. It utilizes a distributed architecture where each module on the network can communicate directly with the controller or other modules. This allows for flexible system configurations and efficient data transfer.

Question 5

NJ/NX-series CPU Unit

Question 6

NX-series Communications Coupler Units

Answer 6

EtherCAT Coupler Unit => two main types depend on the speed;
Communications cycle in DC Mode, 250 to 4,000 μs: NX-EEC201
Communications cycle in DC Mode, 250 to 4,000 μs with two subtypes; NX-EEC202 and NX-EEC203

Question 7

OMRON Safety CPU Unit

Answer 7

two types: NX-SL300 with 256 IO points and 32 Safety IO connections
NX-SL3500 with 1024 IO points and 128 Safety IO connections

Question 8

See the architecture of Safety configuration here

Answer 8

https://www.farnell.com/datasheets/3743081.pdf