AS Series Programming Manual Table of Contents Chapter 1 Introduction 1.1 Overview ............................................................................................... 1-2 1.1.1 Related Manuals ........................................................................... 1-2 1.1.2 Model Description ......................................................................... 1-2 1.2 Software ................................................................................................ 1-8 1.2.1 Program Editor ............................................................................. 1-8 1.2.2 Program Organization Units and Tasks............................................
1-10 Chapter 2 Devices 2.1 Introduction to Devices ......................................................................... 2-2 2.1.1 Device Table ................................................................................. 2-2 2.1.2 Basic Structure of I/O Storage ........................................................ 2-3 2.1.3 Relation Between the PLC Action and the Device Type ........................ 2-3 2.1.4 Latched Areas in the Device Range .................................................. 2-4 2.2. Device Functions ..................................................................................
2-5 2.2.1 Values and Constants .................................................................... 2-5 2.2.2 Floating-point Numbers .................................................................. 2-7 2.2.2.1 Single-precision Floating-point Numbers .......................................... 2-7 2.2.2.2 Decimal Floating-point Numbers ..................................................... 2-8 2.2.3 Strings ........................................................................................ 2-8 2.2.4 Input Relays (X) ...........................................................................
2-9 2.2.5 Output Relays (Y) ....................................................................... 2-10 2.2.6 Auxiliary Relays (M) .................................................................... 2-10 2.2.7 Special Auxiliary Relays (SM) ........................................................ 2-11 2.2.8 Refresh Time for Special Auxiliary Relays ........................................ 2-53 2.2.9 Stepping Relays (S) ..................................................................... 2-61 2.2.10 Timers (T) .................................................................................
2-62 2.2.11 Counters .................................................................................... 2-63 2.2.12 32-bit Counters (HC) ................................................................... 2-65 2.2.13 Data Registers (D) ...................................................................... 2-67 2.2.14 Special Data Registers (SR) .......................................................... 2-67 2.2.15 Special Data Registers Refresh Conditions .................................... 2-104 2.2.16 Additional Remarks on Special Auxiliary Relays and Special Data Registers .................................................................................
2-107 2.2.17 Index Register (E) ..................................................................... 2-127 2.2.18 File Registers (FR) ..................................................................... 2-127 i