Delta DVP-ES3 — 6.19.2 Explanation of Communication Instructions

DVP-ES3 Series Programming Manual Example 2 1. Function code 03 (16#03): the PLC reads the data from several bit devices that are not discrete input devices (eight pieces of data is read in this example). For function code 04, the operation is the same as for function code 03. 2. ES3 Series CPU module is connected to the DVP-ES2 Series PLC. When SM96 and M0 are on, the ES3 Series CPU module sends and receives D32–D39 from the DVP-ES2. _6 3. When the address of D32 is 16#1020, the values of D32–D39 in DVP-ES2 are listed in the following table. The following table lists the operands of the MODRW instruction.

6-538 Device D32 D33 D34 D35 D36 D37 D38 D39 Value (16#) 1234 5678 1122 3344 5566 7788 99AA BBCC Operand Description Device S1 Unit address 16#0001 S2 Function code 16#0003 S3 Device address (D32) 16#1020 S Register involved for reading and writing the data D10 n Data length 8