FAQ Can I change on PLC the devices that operator interface connects to? When multiple devices are connected to operator interface, it's possible to change devices that the operator interface connects to if the [Indirect Device] feature is used.   → What is the "Indirect Device" feature?           For the [Indirect Device] feature, addresses to be specified for changing connected devices are internal devices (LS/USR area) in the operator interface only. To change devices on PLC, it's necessary to combine the [Indirect Device] feature with the [D-Script (or Global D-Script)]/[Logic] feature.   IMPORTANT - In order to use the [Indirect Device] feature, GP-Pro EX Ver.2.7 or later is required. GP-Pro EX Upgrade Service - Changing devices is possible for the same makers and series. For details, see Device/PLC Connection Manual.     ■ Settings 1. Make settings of the [Indirect Device] feature. (→How to set indirect devices) 2. Using the D-Script (or Global D-Script) or Logic feature, write the value to [Device ID Address] of the [Indirect Device] from PLC.       - When using the D-Script (or Grobal D-Script) feature   - When using the Logic feature       NOTE D-Script is set to a base screen. While the base screen is displayed, a program is executed according to a trigger condition. For Global D-Script, while operator interface is running, a program is executed according to a trigger condition regardless of display screens.     <When using the D-Script/Global D-Script feature> 1. When using D-Script:   Click [D-Script] on the [Parts] menu.   When using Global D-Script:   Click [Global D-Script] on the [Common Settings] menu.     2. Click [Create]. 3. Write a script to assign the value of a device address in PLC to [Device ID Address] specified in [Indirect Device].   EX) [Device ID Address] of [Indirect Device] = "LS100" The device address in PLC (PLC1) for device-switching control = "D100"         NOTE Specify any [Trigger] for the D-Script above. EX)   Specify [On Bit Change] for 0 bit of the internal device, LS2032, which toggles ON/OFF every communication cycle: Every communication cycle, the D-Script program is excuted.     Specify [On Bit Change] for 0 bit of the internal device, LS2038, which is the counter that increments each time the processing of the part displayed on the screen is completed: Every time the screen processing is completed, the D-Script program is excuted.     4. Transfer the project file to the operator interface.       NOTE Reference: [Using Scripts (Programmming without Parts)] in GP-Pro EX Reference Manual. <When using the Logic feature> 1. On [Screen List Window], double click [MAIN] of Logic Screens and open the logic edit screen.       2. Create logic program to assign the value of a device address in PLC to [Device ID address] specified in [Indirect Device].   EX) [Device ID Address] of [Indirect Device] = "LS100" The device address in PLC (PLC1) for device-switching control = "D100"     3. Store the value of D100 in LS100 using the transfer instruction, MOV.   4. Transfer the project file to the operator interface.       NOTE Reference: [Logic Programming] and [Logic Instruction List] in GP-Pro EX Reference Manual.

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