Eaton ELC-PB, Programming Manual

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3 . I n s t r u c t i o n S e t
M N 0 5 0 0 3 0 0 3 E F o r m o r e i n f o r m a t i o n v i s i t : w w w. e a t o n . c o m
3 - 3 3 9
API Mnemonic Operands Function
149 D MEMW P S, m, n
File Memory Write
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S *
m * * *
n * * *
MEMW, MEMWP: 7 steps
DMEMW, DMEMWP: 13 steps
ELC ELCB ELCM
PB PC/PA/PH PV PB PH/PA
32 16 P 32 16 P 32 16 P 32 16 P 32 16 P
Operands:
S : Address for storing the data to be written to the file register m : Constant offset into the file
register n : Quantity of data to be written to the file register
Description:
1. Range of S: D2000 ~ D4999 (ELC-PC/PA/PH); D2000 ~ D9999 (ELC-PV)
2. Range of m: K0 ~ K1,599 (ELC-PC/PA/PH); K0 ~ K9,999 (ELC-PV)
3. Range of n: For 16-bit instruction K1 ~ K1,600 (ELC-PC/PA/PH), K1 ~ K8,000 (ELC-PV); For
32-bit instruction K1 ~ K800 (ELC-PC/PA/PH), K1 ~ K4,000 (ELC-PV)
4. ELC-PC/PA/PH uses this instruction to write data register data into file registers.
5. ELC-PC/PA/PH allows for writing a maximum of 1,600 16-bit file registers.
6. ELC-PV allows for writing a maximum of 10,000 16-bit file registers.
7. m and n of ELC-PC/PA/PH do not support E and F index registers.
8. If operands m, D and n are out of range, an operand error will occur. M1067, M1068= ON and
error code 0E1A will be recorded in D1067.
9. Flag: M1101, please refer the Note below .
Program Example:
1. When X0= ON, the double word instruction DMEMW is executed. Write 100 32-bit data words
starting from D2001, D2000 into the file register address 0 to 199.
2. When X0= ON, the instruction is executed. When X0 goes to OFF, the instruction is not
executed.
X0
DMEMW D2000 K0 K100
File Register Notes:
1. ELC-PC/PA/PH series, when the ELC starts up, it will determine the state of M1101 and the
contents of D1101 (file register provides numbers, K0~K1,599), D1102 ( the number of file
registers to be read, K1~K1,600), D1103 (destination address which stores the read data from
the file register, specified by a data register D number, K2,000~K4,999) and automatically
transfers the contents of the file register to the specified data register.