B&R Community

Topic	Replies	Views	Activity
P77 behaviour after PLK communication loss Mechatronics & Motion acopos-inverter Hello, does anybody know the exact behavior of the P77 after a communication loss (PLC X20CP0484-1 reset)? It seems that most of the time it recovers correctly with a zero ErrorCode (0x603F) and the fault bit cleared (…	1	30	September 8, 2026
B&R Community Guidelines Announcements getting-started Hello and welcome to our B&R Community! This is a collaborative space that connects all B&R users to ask and answer questions, share ideas, and discuss all things related to B&R. The following guidelines are in place to …	0	3271	June 6, 2023
Firmware update request for PPT50.101E-16A HMI & Visualization t-c-panels	10	43	September 8, 2026
PP220.1043-75 test CF image or Automation Studio 3.0.90 B&R Software & Runtime automation-studio	6	69	September 8, 2026
Error after mappMotion upgrade [5.24 -> 5.31] (-1067377735) Mechatronics & Motion mapp-motion	3	19	September 8, 2026
B&R 2005 PLC software B&R Software & Runtime automation-studio	3	60	September 8, 2026
Why does SDM log me out when I switch browser tabs HMI & Visualization automation-runtime , sdm	8	33	September 8, 2026
AS 4.12.10 — “Browsing for targets…” never finishes, but PLC responds to ping B&R Software & Runtime automation-studio	2	23	September 8, 2026
Mappview Event Binding not working HMI & Visualization mapp-view , toclose	8	78	September 8, 2026
Plot settings HMI & Visualization mapp-view	2	57	September 8, 2026
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Multiple Dialogs HMI & Visualization mapp-view	3	86	September 7, 2026
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WEBINAR: Agentic Engineering for Industrial Automation: From AI Assistants to Autonomous Engineering Workflows (LINK TO RECORDING) How-To & Wikis ai , innovation_2025	4	621	September 6, 2026
DatObjCreate error 20613 Programming library	1	27	September 6, 2026
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Identify the servo motor Mechatronics & Motion motors	5	71	September 5, 2026
#Software_requirement_CP360 B&R Software & Runtime automation-studio , plc	2	43	September 5, 2026
What's in the box? Power Panel C650 How-To & Wikis whats-in-the-box	4	174	September 4, 2026
RFID tag reader deffective 5АP92D.215I HMI & Visualization automation-panel	5	80	September 4, 2026
CAN Bus freestyle / IO performance best practices Programming automation-runtime , fieldbus , can	4	156	September 4, 2026
B&R X20AI/AO modules not detected Controls & Vision x20 , automation-studio	4	59	September 4, 2026
Communication between AS4.12 Safety Release and AS4.12 mapp Safety 5.24.2.1 SF Domain Controls & Vision mapp-safety	1	34	September 4, 2026
Is there a tactile area on the C650 HMI & Visualization vc4 , t-c-panels	1	48	September 4, 2026
Use and connect multiple AlarmXcores B&R Software & Runtime mapp-services , mapp-alarmx	4	99	September 4, 2026

P77 behaviour after PLK communication loss

acopos-inverter

Hello, does anybody know the exact behavior of the P77 after a communication loss (PLC X20CP0484-1 reset)? It seems that most of the time it recovers correctly with a zero ErrorCode (0x603F) and the fault bit cleared (…

1

30

September 8, 2026

B&R Community Guidelines

Announcements

getting-started

Hello and welcome to our B&R Community! This is a collaborative space that connects all B&R users to ask and answer questions, share ideas, and discuss all things related to B&R. The following guidelines are in place to …