https://community.cadence.com/cadence_technology_forums/pcb-design/en-USTelligent Community 13https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66303/spmhge-779-place-replicate-module-component-net-profiles-incompatible-with-design-module-instance-cr_xxxxxx_mapped1_1-instance-not-modified/1409276Thu, 03 Sep 2026 17:58:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:d5193841-5d6c-48ba-90db-7c8da1b49891JuanCRThe error SPMHGE-779 typically indicates a mismatch in the net connectivity or component properties (Device/Value) between the module definition ( .mdd ) and the instance in your design. Ensure that the net assignment profile for the components matches. The tool cannot automatically resolve matches if the netlists are inconsistent. If you need to bypass these checks (e.g., when using different component values in different groups), select the module instance and choose the Place Replicate Update option. This opens a dialog where you can disable Device Name / Value matching options . If you encounter SPMHGE-779 during a module replacement or update, follow these steps to resolve the incompatibility: Disband the Existing Group: Switch the application mode to General Edit ( Setup > Application Mode > General edit ). In the Find tab, enable Groups and select the problematic module instance. Right-click and select Disband group . This removes the module association while keeping the components in place. Re-apply the new or updated module using Place replicate apply in Placement edit mode. Verify Component Status: Ensure all components intended for the module are UNFIXED . Use the unfix command if necessary to allow the tool to include them in the replication process. Check for Shape Conflicts: By default, dynamic shapes in a module are converted to static shapes during application to prevent conflicts. If you need to maintain dynamic shapes, you can set the environment variable disable_module_shape_convert . Bypass Property Checks (Workaround): As noted in previous investigations, if the mismatch is due to non-critical properties like "Device Name" or "Value," you can use the Place Replicate Update command and disable the matching options for these specific properties to bypass strict checks.https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-capture-cis/66306/hierarchical-design-challenge-new-ports-addedThu, 03 Sep 2026 16:23:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:7f3ed51e-83b4-4b24-8d94-2bbef4200956TechnoBobbyA Buck Converter is implemented as a hierarchical block in the parent schematic. Initially, the child schematic contained only Vin, Vout, and PWM ports, and the H-Block was already placed and connected. Later, the design was expanded and two new ports were added to the child schematic: PGOOD and Fault How would you update the existing H-Block in the parent schematic so the new ports become available? A. Delete and recreate the H-Block B. Manually add and rename hierarchical pins C. Synchronize Up the Hierarchical Block D. Synchronize Down the Hierarchical BlockCapture CISOrCADhttps://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-scripting-skill/66274/skill-to-open-custom-variables-window-in-allegro-x-25-1-pcb-editor/1409275Thu, 03 Sep 2026 08:48:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:eb935f12-1d2d-44ca-952e-85c76721785fMZ20250602835Dear All, i found the solution, i used axlShellPost instead of axlShell, such as axlShellPost("tbx customvar update"), there is no problem anymore. Best Regardshttps://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66304/cut-iterations-converge-faster-design-smarter-with-cadence-agentic-ai-join-us-on-16-september-2026Thu, 03 Sep 2026 07:11:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:d5979c84-dcd6-4a83-b773-07571ee4d3daRenu VibhaJoin this Cadence webinar to learn how teams are leveraging Agentic AI to shorten iteration cycles, improve convergence, and tackle complex design challenges faster. Sept 16, 2026 | 8:00 AM - 9:00 AM PT Hear real success stories, explore the latest AI innovations, and join a breakout tailored to your domain. Register now and save your spot .Cadence #AgenticAI #ArtificialIntelligence #EDA #ChipDesign #SystemDesign #PCBDesign #AdvancedPackaging #Semiconductor #EngineeringInnovationhttps://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66303/spmhge-779-place-replicate-module-component-net-profiles-incompatible-with-design-module-instance-cr_xxxxxx_mapped1_1-instance-not-modifiedWed, 02 Sep 2026 13:31:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:982aa939-9256-4f3c-ab63-158bc82fb86cTT202608257415Hi, I get the following error in OrCAD X PCB Professional 25.1-2025 S030 [3/25/2026] Windows SPB 64-bit Edition: (SPMHGE-779): Place replicate module component net profiles incompatible with design module instance 'CR_xxxxxx_MAPPED1_1'. Instance not modified. This error appears when I try to replicate apply an MDD file. Please see below workflow hat leads up to the error. 1. Extract an mapped module from an existing board (origin.BRD) by selecting module --> RMB "Place replicate update" and save as origin.MDD 2. Create new board (new.BRD) and import netlist from origin.BRD 3. Quickplace all components and select all components --> RMB "place replicate apply" --> choose origin.MDD 4. The module attaches to the cursor ready to be placed --> then placed within outline. 5. PCB Editor is busy for 10 seconds and places the module in the outline, but in the command window the above mentioned error appears. I tried to find information online but I cannot find any explanation of this error or the severity of this error (can it be ignored?). And what does it exactly mean that the instance is not modified? Thanks in advance.https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66291/how-to-install-allegro-free-physical-viewer-16-6/1409274Wed, 02 Sep 2026 06:17:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:30cb27fc-aa90-4779-8986-f6cfe69a36a8JCTEYSSIER017.2 17.4 and 22.1 viewer can open 16.6 brd. 23.3 and upper cannot. If you can one of them (upper: 22.1) i will see your 16.6 brdhttps://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66290/dff-backdrill-to-pad/1409273Tue, 01 Sep 2026 15:16:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:1dd7eafd-0dc2-4cad-9bde-c6cccb150effPCB6453No really. I'm trying to make sure that the clearance from the edge of my backdrill is far enough from the pad that it will delete the whole pad entirely. So, I saw this on the DFF section and I was thinking that this is where I have to put in the rule.https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-capture-cis/66301/access-and-review-designs-with-orcad-x-cloudTue, 01 Sep 2026 06:10:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:37c7f184-7af3-41b1-96d4-f2adf4fabe23JeetThe web-based collaboration capabilities of OrCAD X Cloud help engineers, reviewers, and project stakeholders stay connected throughout the design process. Whether reviewing schematics, providing feedback, or validating PCB layouts, users can work together more efficiently while maintaining a single source of truth for the design. To access the OrCAD X Cloud workspace, follow these steps: Navigate to the pcb.cadence.com/dashboard  website in a web browser. Enter your login credentials to authenticate. Upon successful login, your Cloud Workspace will open, granting you access to the web version of your Workspace , as shown below: Have you started using OrCAD X Cloud for your design reviews and collaboration workflows? Share your experiences and best practices here!https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-capture-cis/66300/tired-of-repetitive-login-pop-upsTue, 01 Sep 2026 05:53:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:fbd3d527-2192-469e-95bf-5fd347386333Renu VibhaDoes the Cloud login prompt in OrCAD X Capture CIS interrupt your workflow every time you start the tool? Find the solution here: In OrCAD X Capture CIS, how do I disable the login pop-up that appears for Cloud services every time I start the tool?https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66253/mounting-ic-in-45deg/1409265Mon, 31 Aug 2026 06:44:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:1799f5c4-dae9-4c34-8ce8-e17974c1707cHS202603175138The 45° rotation introduces coordinate rounding when Allegro snaps the pads to its database grid, so a nominal 0.2000 mm gap becomes 0.1999952 mm. The 4.8 nm differences is physically insignificant, but DRC applies a strict comparison. If 0.2 mm is only an internal rule, reduce it slowly or create a footprint-specific exception. If it is the fabricator’s minimum, adjust the pad geometry to provide real manufacturing margin rather than waiving the error.https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66296/join-us-on-wednesday-sep-9th-2026-for-our-next-live-ask-me-anything-session-on-allegro-x-pcb-editor-libraries-creation-and-managementMon, 31 Aug 2026 05:53:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:2ec69d8f-3496-4f65-8327-c06aa296d0b2Renu VibhaOur next session offers a blend of theoretical insights and practical applications, tailored to enhance your understanding of cutting-edge design principles. As always, each session is moderated by Cadence Engineer providing valuable knowledge and actionable techniques. Do join us here on Wednesday, Sep 9th 2026 for the session at 8:30-9:30PM IST Topic- 'Allegro X PCB Editor Libraries: Creation and Management” Bring your questions. Share your experiences. Be part of the conversationhttps://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66291/how-to-install-allegro-free-physical-viewer-16-6/1409264Sun, 30 Aug 2026 20:24:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:553d22c1-c8bf-4a34-8e02-062a2ddabe82JuanCRDbdoctor is not included in the Allegro Free Viewer. You will need a licensed installation in order to access it.https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-scripting-skill/66295/how-to-write-a-simple-cmxl-code-that-retrieves-or-edits-data-from-constraint-managerSun, 30 Aug 2026 20:22:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:4255e892-a6f8-48c6-a01a-071b918c9eeeJuanCRImagine you want to access some constraint values using SKILL. I know there are AXL functions available; However, what if you want to use CMXL because it dives deeper into the Constraint Manager capabilities. Let's show an example. Let's set static phase values of a differential pair configuration. This is how the code would look like: axlCMDBInit() dsn = cmxlFindObject(ACNS_DESIGN); when(dsn cmxlDBSkillInit(dsn); cset = cmxlFindObject(ACNS_ECSET, "DIFF", dsn); when(cset println(cmxlPutAttribute(cset "DIFFP_PHASE_TOL" ACNS_STRING list("0.5"))) println(car(cmxlGetAttribute(cset "DIFFP_PHASE_TOL" ACNS_STRING))); should return 0.5mm ) ) cmxlDBSkillExit(dsn); Here's a brief explanation of what each section is doing: If the same logic is used with any other attribute name, you can construct the new code to edit a different constraint. Make sure you use the right Object type with cmxlFindObject. You can find all the object types and definitions at the end of the CMXL Reference Manual. Feel free to ask any questions!https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66290/dff-backdrill-to-pad/1409262Fri, 28 Aug 2026 18:44:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:5e47bbf4-2dcf-415b-8830-1f551660b701JuanCRHi! Are you intending to configure these values so that it sets up your backdrill? The way to set up the backdrill is actually in Manufacture > NC > Backdrill Setuphttps://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66291/how-to-install-allegro-free-physical-viewer-16-6/1409261Fri, 28 Aug 2026 17:50:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:cc3f0437-71e0-45b1-b853-4141847c3c53EL202608245635Ok, thanks for the reply. Is it possible to use dbDoctor in the newest version of the Allegro free viewer, or is a license of Allegro needed?https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66291/how-to-install-allegro-free-physical-viewer-16-6/1409260Fri, 28 Aug 2026 17:18:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:e4a2b2be-5711-484b-929c-750ee58205fdJuanCRUnfortunately there is no way to provide this installer. You can use a 25.1 installation to uprev the design using dbDoctor.https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66254/what-is-preventing-designers-from-improving-decoupling/1409258Fri, 28 Aug 2026 14:50:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:c1930015-b569-4053-8d4e-b66a052d5556CC202608287943Thanks for the detailed explanation. I’m still fairly new to PCB layout, so some of this is new to me , but the point about keeping the trace width closer to the pin width makes sense. I’ll keep the via placement and inductance in mind as well.https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-capture-cis/66292/what-do-and-mean-in-intersheet-references-can-they-be-removed/1409257Fri, 28 Aug 2026 12:44:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:df679cf2-b281-45ab-994d-eff84728b046rg13The caret symbol (^) indicates that the signal exists one level higher in the hierarchy. An exclamation (!) symbol indicates that the signal exists one level lower in the hierarchy.https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66254/what-is-preventing-designers-from-improving-decoupling/1409256Fri, 28 Aug 2026 12:29:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:4a09f89e-53c1-4714-8fdd-2d333e216a55John TSometimes it makes you wonder if it would be possible to embed just the ground pad on the lower layer, soldering directly to the inner ground plane...For thin dielectric layers the thickness difference might not be so bad to enable soldering potentially. The technology is already there for making punch openings in the prepreg, or just micro-milling. Hope my meaning is clear.https://community.cadence.com/cadence_technology_forums/pcb-design/f/allegro-x-pcb-editor/66179/from-signal-integrity-to-emc-join-daniel-beeker-for-a-two-day-science-based-pcb-design-seminar-in-derby-united-kingdom-in-october-2026/1409255Fri, 28 Aug 2026 11:18:00 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:e38dd617-2081-4a67-991d-b7a136639c4eAzitech ApsThank you, John, for sharing your experience and recommendation. We really appreciate your support and are glad to hear that you found the seminars valuable.