Siemens 6ES5 370-0AA31 SIMATIC S5 4 KB EPROM Memory Submodule

Features

-4 KB EPROM capacity
-Storage for 2K instructions
-Two 2716 EPROM devices
-Non-volatile data retention
-Byte-oriented operation
-Siemens programming identification

Product Overview

The Siemens 6ES5 370-0AA31 is a SIMATIC S5 Series 370 EPROM memory submodule used for fixed user-program storage. It has a capacity of 2K instructions, equivalent to 4 KB, and is equipped with two 2716 EPROM devices. The submodule can be installed in compatible SIMATIC S5 memory configurations, including the 350 memory board. Program data is written to the EPROM with compatible Siemens programming equipment before installation. Because EPROM is non-volatile, the stored program does not depend on the controller’s backup battery.

Technical Specifications

Benefits

-Retains program data without battery backup
-Protects fixed program content from normal online modification
-Supports established SIMATIC S5 memory configurations
-Provides a smaller-capacity option within the 370 family
-Allows programmed modules to be stored separately from the controller
-Fits documented 350 memory-board positions

Application Areas
Fixed S5 Program Storage--The 6ES5 370-0AA31 can hold a completed user program or a fixed program section that does not require regular online modification. Its non-volatile EPROM technology preserves the data after controller power is removed.

S5-130W and S5-150A/K Memory Systems--The submodule can be used with a compatible 350 memory board in documented S5-130W and S5-150A/K systems. The EPROM area must be assigned through the appropriate address-coding socket on the carrier.

Machine Program Distribution--A programmed EPROM provides a physical method of retaining and transferring a defined machine program. Before installation, the receiving controller, carrier board, address range and program revision must match the intended system.

Frequently Asked Questions

1. What is the storage capacity of the 6ES5 370-0AA31?
The module stores 2K instructions, corresponding to 4 KB. These figures describe the same storage capacity in instruction and byte units.

2. How does the 370-0AA31 differ from the 370-0AA41?
The 370-0AA31 contains two 2716 EPROM devices and provides 4 KB. The 370-0AA41 contains four 2716 devices and provides 8 KB. Their capacities and programming identifications are different.

3. What programmer settings identify this EPROM module?
Siemens programming documentation lists programming number 2, hardware identification code 18 and byte operating mode for the 6ES5 370-0AA31. The selected programming equipment must support this exact module designation.