# US 2026/0086969 A1 · Bridging field bus module and method for operating a bridging field bus module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0086969 A1 - Document ID: US20260086969A1 - Status: Published application - Kind: A1 - Application number: 19/401,455 - Filed: 2025-11-26 - Published: 2026-03-26 - Earliest claimed: 2023-06-02 - Assignees: Turck Holding GmbH - Applicants: Turck Holding GmbH - Inventors: Benjamin Schelte; Marius Melnik; Christian Weustenfeld; Johannes vom Stein - Web page: https://patentgrep.com/patent/US20260086969A1 ## CPC - G06F 13/4027: {using bus bridges (G06F13/4022 takes precedence)} - H04L 12/4625: {Single bridge functionality, e.g. connection of two networks over a single bridge} - H04L 12/40176: {involving redundancy (error detection or correction of the data by redundancy in hardware using active fault-masking in interconnections G06F11/2002; error detection or correction of the data by redundancy in hardware using active fault-masking in storage systems using spares or by reconfiguring G06F11/2053)} - H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks - G06F 2213/40: Bus coupling - H04L 69/08: Protocols for interworking; Protocol conversion - H04L 2012/4026: {Bus for use in automation systems} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A bridging field bus module designed for connecting two field bus networks to each other, comprising a coupling element, which is designed to detect a safety-relevant message received from the first field bus network on the field bus bridging module, wherein the bridging field bus module is designed to receive the safety-relevant message corresponding to the first safety protocol from the first field bus network, convert the detected safety-relevant message received from the first field bus network into a first and a second safety-relevant message, each corresponding to the second safety protocol, compare the first and second safety-relevant messages with each other, and output the first and/or second safety-relevant message to the second field bus network depending on a result of the comparison. ## Claims ### Claim 1 A bridging field bus module designed for connecting two field bus networks to each other, wherein a first field bus network of the two field bus networks uses a first safety protocol and a black channel principle for safety-relevant messages, and a second field bus network of the two field bus networks uses a second safety protocol, different from the first safety protocol, and the black channel principle for the safety-relevant messages, the bridging field bus module comprising: a coupling element, which is designed to detect a safety-relevant message received from the first field bus network on the field bus bridging module, wherein the bridging field bus module is designed to receive the safety-relevant message corresponding to the first safety protocol from the first field bus network, convert the detected safety-relevant message received from the first field bus network into a first and a second safety-relevant message, each corresponding to the second safety protocol, compare the first and second safety-relevant messages with each other, and output at least one of the first and second safety-relevant message to the second field bus network depending on a result of the comparison. ### Claim 2 (depends on 1) The bridging field bus module according to claim 1, wherein: the conversion of the safety-relevant message received from the first field bus network into the first safety-relevant message includes forming a first checksum for the first safety-relevant message, the conversion of the safety-relevant message received from the first field bus network into the second safety-relevant message includes forming a second checksum for the second safety-relevant message, and the first safety-relevant message together with the first checksum are output to the second field bus network depending on the result of the comparison. ### Claim 3 (depends on 2) The bridging field bus module according to claim 2, wherein the second safety-relevant message is output together with the second checksum to the second field bus network depending on the result of the comparison. ### Claim 4 (depends on 1) The bridging field bus module according to claim 1, wherein the bridging field bus module comprises a first data processing device, designed to convert the safety-relevant message received from the first field bus network into the first safety-relevant message. ### Claim 5 (depends on 2) The bridging field bus module according to claim 2, wherein the bridging field bus module comprises a first data processing device, designed to convert the safety-relevant message received from the first field bus network into the first safety-relevant message, and to form the first checksum. ### Claim 6 (depends on 4) The bridging field bus module according to claim 4, wherein the coupling element is designed to output the detected safety-relevant message to the first data processing device. ### Claim 7 (depends on 4) The bridging field bus module according to claim 4, wherein the first data processing device comprises a first safe memory, which is designed to buffer the first safety-relevant message. ### Claim 8 (depends on 1) The bridging field bus module according to claim 1, wherein the bridging field bus module comprises a second data processing device designed to convert the safety-relevant message received from the first field bus network into the second safety-relevant message. ### Claim 9 (depends on 2) The bridging field bus module according to claim 2, wherein the bridging field bus module comprises a second data processing device designed to convert the safety-relevant message received from the first field bus network into the second safety-relevant message and to form the first checksum. ### Claim 10 (depends on 8) The bridging field bus module according to claim 8, wherein the coupling element is designed to output the detected safety-relevant message to the second data processing device. ### Claim 11 (depends on 8) The bridging field bus module according to claim 8, wherein the second data processing device comprises a second safe memory designed to buffer the second safety-relevant message. ### Claim 12 A method for operating a bridging field bus module designed to connect two field bus networks to each other, wherein a first field bus network of the two field bus networks uses a first safety protocol and the black channel principle for safety-relevant messages, and a second field bus network of the two field bus networks uses a second safety protocol, different from the first safety protocol, and the black channel principle for the safety-relevant messages, the method comprising: receiving a safety-relevant message, which corresponds to the first safety protocol, from the first field bus network on the bridging field bus module, detecting the safety-relevant message received from the first field bus network on the field bus bridging module using a coupling element, converting the detected safety-relevant message received from the first field bus network into a first and a second safety-relevant message, each corresponding to the second safety protocol, comparing the first and second safety-relevant messages with each other, and outputting at least one of the first and second safety-relevant message to the second field bus network depending on a result of the comparison. ### Claim 13 (depends on 12) A non-transitory computer-readable medium comprising commands which, when the commands are executed by a bridging field bus module, which is designed to connect two field bus networks to each other and comprises a coupling element, cause said module to carry out the method as claimed in claim 12.