DVP Series PLC File Register Application Guide

This document explains how to use file registers in Delta DVP series PLCs to store and manage data when internal data registers are insufficient. It covers methods for reading and writing file registers using API 148 MEMR and API 149 MEMW instructions, as well as using software tools like WPLSoft and ISPSoft, and special auxiliary relays M1101 and D1101~D1103.