Fnc290 - Loadr / Load From Er - Mitsubishi Electric FX3G SERIES Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
33.1 FNC290 – LOADR / Load From ER
Outline
This instruction reads the current values of extension file registers (ER) stored in the attached memory cassette (flash
memory or EEPROM) or EEPROM built into the PLC, and transfers them to extension registers (R) stored in the RAM
in the PLC.
1. Instruction format
FNC 290
LOADR P
2. Set data
Operand Type
S
n
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS
S
n
Explanation of function and operation
1. 16-bit operation (LOADR and LOADRP)
1) In FX /FX
3U 3UC
The contents (current values) of extension file registers (ER) stored in a memory cassette (flash memory) with the
same numbers as the extension registers specified by
extension registers specified by
Command
input
LOADRP
Extension file registers (ER)
inside memory cassette
E S
E S +1
E S +2
S
E +3
S
E +n-2
E S +n-1
• Reading (transfering) is executed in device units. Up to 32,768 devices can be read (transferred).
• As apposed to the SAVER (FNC291), INITR (FNC292) and LOGR (FNC293) instructions, it is not necessary to
execute this instruction in sector units.
• If "n" is set to "0", it is handled as "32768" when the instruction is executed.
Mnemonic
16-bit Instruction
LOADR
5 steps
LOADRP
Device number of extension register to which data is to be transferred
(The extension file register with the same number is handled as the data transfer source.)
Number of points to be read (transferred)
: 1 ≤ n ≤ 24000, FX
[FX /FX
3G 3U 3UC
Digit Specification
PLCs
S to
FNC290
S n
Read
(transfer)
33 Extension File Register Control – FNC290 to FNC299
Operation Condition
32-bit Instruction
Continuous
Operation
Pulse (Single)
Operation
Description
: 0 ≤ n ≤ 32767]
Word Devices
Special
System User
Unit
T C D R U \G V
S to S
S +n-1 stored in the PLC's built-in RAM.
Extension registers (R)
inside built-in RAM
S
S +1
S +2
S +3
+n-2
S
S +n-1
33.1 FNC290 – LOADR / Load From ER
Mnemonic Operation Condition
Data Type
16-bit binary
Others
Con- Real Charac-
Index
stant Number ter String
Z Modify K H E " "
+n-1 are read, and transferred to the
31
32
33
34
35
Pointer
P
36
37
38
A
B
713