Chapter 6 Applied Instructions 6.15.2 Explanation of Module Instructions Symbol 6_ m 1 ： CPU module number or the remote extension module number m 2 ： Order numbers of the extension number m 3 ： Control register number D 1 ： Device where the data is stored D 2 ： Device where the error code is stored n ： Data length Explanation 1. This instruction reads data from the control register in an extension module. 2. The value in m 1 must be 0. If the value in m 1 is NOT 0, it will be seen as 0. 3.
The operand m 2 represents the number of the right-side special extension modules (digital I/O module excluded) 6-411 API Instruction code Operand Function 1400 D FROM P m1, m2, m3, D1, D2, n Reading data from the control register in an extension module Device X Y M S T C HC D FR SM SR E K 16# “$” F m1 m2 m3 D1 D2 n BOOL WORD DWORD LWORD UINT INT DINT LINT REAL LREAL TMR CNT STRING Data type m1 m2 m3 D1 D2 n Pulse instruction 16-bit instruction 32-bit instruction ES3 ES3 ES3