Commands in the Process Integration Mode

MERLIC provides various commands that can be used during the execution of the process integration MERLIC can be used in machine vision systems that are integrated in a manufacturing machine. The machine controller, e.g., a programmable logic controller (PLC), must be able to control an integrated vision system, to monitor the execution, and to query the results. Therefore, MERLIC provides a process integration mode to enable the communication with a machine controller. The process integration mode can be started with the application "MERLIC RTE" that is provided with the MERLIC installation. mode as described in the topic Signals and Commands. Depending on the type of device that is used for the process integration, different commands are supported.

The following table gives a short overview of the commands that are available for the respective devices. To get information about how to use these commands during the process integration, see the topics below.

Device	Start continuous execution	Start single execution	Change recipe	Get MVApp results	Check MERLIC state
Hilscher card	✔	✔	✔	✔	✔
Digital I/O device	✘	✔	✔	(✔) Only Boolean data types	✔ (Only "Ready" and "Error")
Camera Device with GenICam compliant Digital I/O channels	✘	✔	✘	(✔) Only Boolean data types	✔ (Only "Ready" and "Error")
Plug-ins via the MERLIC Communicator SDK	✔	✔	✔	✔	✔

As listed in the overview above, MERLIC also supports digital I/O devices and camera devices with digital I/O channels. Both types of these devices contain digital inputs and digital outputs that are used for the process integration. Therefore, the procedure how to work with MERLIC during the process integration, e.g., how to check the current state, is the same for these types of devices. You can find the information about how to use the available commands for digital I/O devices and camera devices with digital I/O channels in the same topic.

Get More Information

Using the Commands for Hilscher PCI Card

Learn how to use the available commands when using MERLIC in process integration mode with a Hilscher PCI card.

Using the Commands for Digital I/O

Learn how to use the available commands when using MERLIC in process integration mode with a digital I/O device or a camera device with GenICam compliant digital I/O devices.