Character String and Flags from Same Master in S7-1200 PLC Modbus Communication


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I am working on a project where I have connected my S7-1200 1214c CPU with a PC Software (Consider Modscan). I need to write a Character string of 20 Character as well as Write Flag bits to the Slave PLC S71200. I took an array of Char as data type in PLC Modbus slave holding register, but there i can only write data in Char from Master.