The CRC check is done internally inside the module, and you will for this reason not see the CRC un the UART message.
Last Update: January 18, 2018
January 18, 2018 1022 Wireless M-Bus Q&A
Related Knowledge Base Posts -
- [W-MBUS]”We have a board for Wireless M-Bus which is connected one of the UARTs at the Arm Cortex A5 which we are using. Now we have had some units which have stopped working. We got one to the office last week and this one seems not work at all. We could not send the configuration commands etc. “
- [W-MBUS] “we have a problem with the configuration of RC1700HP(MBUS4). We start our micro and we start the comunicacion for the uart with the radiocraft RC1700HP likewise with the RC1180 MBUS3 (with a low level in the nConfig pin) but the Radiocraft RC1700HP don’t responde (with the symbol >). We watch with the oscilloscope that in the pin RTS/SLEEP in this case we have a High level and in the RC1180 we have a low level, could be this the problem, you know why can be? The supply that we use for the RC1700HP is Vcc = 2.5v and Vcc_PA = 3.6v. Is this ok? “
- [W-MBUS] “In your mbus manual wrote (pag 4): “”In OMS (MBUS3) the master sends a command with its own address as Link Layer Address, and the slaves address as Application Layer Address.”” You mean that only long Appl header (12 byte) containing the slave address is granted ? If I got it the MUC and slaves have same link address (i.e MUC address) .. is it correct? Does your mailbox feature use this format ? “