Retentive Memory - KEP MMI-1500 Installation & Operation Manual

Mmi-touchscreen series

Table of Contents

LW Address

Description

9080-9085

Project name

9086-9087

Project size in bytes

9088-9089

Project size in K bytes

9090-9091

Compiler version ID

Project Compile Date/Year

9092

9093

Project Compile Date/Month

9094

Project Compile Date/Day

9100

Indirect Addressing, For external PLC only 9100 indirect window number

9101

Indirect Addressing, For external PLC only 9101 indirect offset

9130

Language control word

9135

Li-Battery Voltage in millivolts

Note: This is not the PLC's battery. It is the

touchscreen's internal battery.

9136

CF card download status

0: inactive

1: download in progress

2: download complete

3: download failed

10.4 Retentive memory

The HMI units have 64K of battery backed RAM. This memory is accessed by using the following data types:

RB - accesses the first 2047 registers as 16 bit groups. The bit is designated as a hexadecimal number. (i.e. accessing bit

10 of word 63 would be Device type RB, Device address 63A)

RBI - accesses the first 2047 register's bits and sets the index pointer to that bit. LW9000 is used in conjunction with the RBI

value to give an offset value for Recipe Transfer parts. (i.e. If RBI is set to device address 20 and LW9000 has a value of 5 in

it, then bit downloads and saves would begin at RB25 = RBI20 + 5.)

RW - accesses the retentive registers as words. The full range (0 to 65535) is available but registers above 60000 are

reserved for system use (See below).

RWI - Reads the register and sets the index pointer to the value in that register. LW9000 is used in conjunction with the RWI

value to give an offset value for Recipe Transfer parts. See Recipe Transfer Part for an example of the RWI register is used.

The valid range of RWI types is 0~ 32767.

Ms_RB and Ms_RW are used by Slave configured units for accessing retentive memory locations in a remote Master unit.

NOTE: All retentive data types overlap in retentive memory. (i.e. changing RB0002 to ON changes the value of RW00001.

This also affects RWI00001 and RBI0002.)

Some Retentive Words are reserved for special purposes. Users should not use these areas except for their specified

purposes. Retentive Words: 60000~65535 are reserved

NOTE

Use ASCII Data to show project name

It occupies 12 bytes.

(read only)