10/5/2023 8:38 AM | |
Joined: 6/15/2016 Last visit: 5/28/2024 Posts: 12 Rating: (0) |
Dear Duris, Thank you for your reply. COMM LOAD and MDBUS SLAVE blocks are called in FC14 which is called in OB1. Blocks Execution The request for COMM LOAD is triggered from OB100 and it gets cleared in FC14 after the FB is executed without error. COM RST for both FBs is coming from OB100. So COMM LOAD gets executed once during every CPU WARM RESTART cycle and MDBUS SLAVE is executed along with OB1. "8454" Error Code I know the CAUSE for error code so I checked the DB no and its size but both are matching the pointer defined at MDBUS SLAVE FB input "MB_HOLD_REG". I have no idea what else to ensure, looks like the FB is not able to recognize the DB or its size. I have attached the pdf which includes screenshots to give more insights. Please, note that pointer has 512 words mentioned which was only to enter for troubleshooting purposes. Get same error code with 120 words. Looking forward to receiving healthy advices. Br, AttachmentCPU412-5H and ET200SP Modbus Slave RS485.pdf (309 Downloads) |
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