Discover new perspectives and gain insights with IDNLearn.com. Receive prompt and accurate responses to your questions from our community of knowledgeable professionals ready to assist you at any time.
Instead of a second PC and a null modem cable, you can also use virtual null modem software (vnullmod20 - downloadable from the Internet or Eltima or TAL software) and run both RTU master and slave on one machine. Just do not use a COM port that already exists on your machine (such as COM1). This can also be run in the Remote Labs. IMPORTANT: Change the slave ID to ‘4’ and set coils 12/13 (absolute addressing in decimal) so that your data (bit values) with a ‘read coil’ command (FC01) becomes 03 hex (i.e. 0000 0011) in the response message. IMPORTANT: Address ONLY these two coils.
a) Provide screenshots of BOTH the Modbus Poll and Modbus Slave screens showing the requests and responses. (DisplayCommunication). Capture a minimum of four Modbus transactions: one with both coils cleared, one with both coils set, and one each with one of the coils set.
Sagot :
Thank you for using this platform to share and learn. Keep asking and answering. We appreciate every contribution you make. Thank you for choosing IDNLearn.com for your queries. We’re here to provide accurate answers, so visit us again soon.
