Functions And Operation Examples Of Extension File Registers - Mitsubishi Electric FX3G SERIES Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
4.10.6

Functions and operation examples of extension file registers

Extension file registers (ER) are usually used as log data storage destinations and set data storage destinations.
Extension file registers can be handled only with dedicated instructions shown in the table below. When using data
contents with other instructions, transfer them to an extension register of the same device number, and then use the
extension register.
However, extension file registers (ER) are available in FX
• FX /FX
3U 3UC
Instruction
LOADR(FNC290)
SAVER(FNC291)
INITR(FNC292)
LOGR(FNC293)
RWER(FNC294)
INITER(FNC295)
*1. Extension file registers are only accessible when a memory cassette is mounted.
• FX PLCs
3G
Instruction
LOADR(FNC290)
RWER(FNC294)
*2. When the memory cassette is attached, extension file registers in the memory cassette are accessed.
When the memory cassette is not attached, extension file registers in the EEPROM built in the PLC are
accessed.
136
PLC
This (transfer) instruction reads data of extension file registers (ER)
This (transfer) instruction writes data of extension registers (R) to extension file registers (ER)
sector) units. Use this instruction to store newly created sectors (2048 points) of data to extension file registers
*1
(ER) .
This instruction initializes extension registers (R) and extension file registers (ER)
Use this instruction to initialize extension registers (R) and extension file registers (ER)
by the LOGR instruction.
This instruction logs specified data, and writes it to extension registers (R) and extension file registers (ER)
This (transfer) instruction writes specified extension registers (R) to extension file registers (ER)
supported in FX PLCs Ver.1.30 or later.Use this instruction to store the contents of any extension register (R) to
3UC
*1
extension file register (ER)
This instruction initializes extension file registers (ER)
in FX PLCs Ver.1.30 or later.Use this instruction to initialize extension file registers (ER)
3UC
SAVER instruction.
This (transfer) instruction reads data of extension file registers (ER) to extension registers (R).
This (transfer) instruction writes specified extension registers (R) to extension file registers (ER)
Use this instruction to store the contents of any extension register (R) in extension file registers (ER)
4.10 Extension Register [R] and Extension File Register [ER]
/FX PLCs only when the memory cassette is attached.
3U 3UC
Description
.
*1
in 2048 point (1 sector) units. This instruction is supported
Description
4 Devices in Detail
*1
to extension registers (R).
*1
in 2048 point (1
*1
in 2048 point (1 sector) units.
*1
before starting to log data
*1
.This instruction is
*1
before executing
*1
.
*2
.