DVP-ES3 Series Programming Manual _3 3-34 Instruction code Pulse API Symbol Function 16-bit 32-bit instruction 1806 LRC ─ ─ Longitudinal parity check 1807 CRC ─ ─ Cyclic redundancy check 1808 MODRW ─ ─ Reading and Writing MODBUS data 1812 COMRS ─ ─ Sending and receiving communication data 1813 COMDF ─ Setting the communication format for a serial communication port 1814 VFDRW ─ ─ Serial communication instruction, exclusively for Delta AC motor drive 1815 ASDRW ─ ─ Serial communication instruction, exclusively for Delta servo drive 1816 CCONF ─ Setting the parameters in the data exchange table for a communication port 1817 MODRWE ─ ─ Reading and writing Modbus data without using any flags 1818 DNETRW ─ ─ Reading and writing DeviceNet communication data 1819 CANRS ─ ─ User-defined CAN communication sending and receiving