Eaton ELC-PB - Page 41

ELC Programming Manual
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2-12
Special
D1000~D1999, 1000 words,
some are latched
For AIO modules
D9900~D9999，100 words,
Note 1, Note 5
Word Register
D
Data register
Index
E0~E7, F0~F7, 16 words,
Note 1
General storage for word
length data
N Master control loop N0~N7, 8 points Master control nested loop
P Pointer P0~P255, 256 points
The location point of CJ,
CALL
External interrupt
I000/I001(X0), I100/I101(X1),
I200/I201(X2), I300/I301(X3),
I400/I401(X4), I500/I501(X5),
I600/I601(X6), I700/I701(X7), 8
points (01, rising-edge trigger
,
00, falling-edge trigger
)
Timer interrupt
I602~I699, I702~I799, 2 points
(Timer resolution = 1ms)
High-speed
counter interrupt
I010, I020, I030, I040, I050, I060,
I070, I080,8 points
Pointer
I
Interrupt Service
Communication
interrupt
I140(COM1), I150(COM2),
I160(COM3), 3 points, Note 3
Address for interrupt
subroutines
K Decimal
K-32,768 ~ K32,767 (16-bit operation),
K-2,147,483,648 ~ K2,147,483,647 (32-bit operation)
Constant
H Hexadecimal
H0000 ~ HFFFF (16-bit operation),
H00000000 ~HFFFFFFFF (32-bit operation)
Serial ports
COM1: built-in RS-232 ((Master/Slave), COM2: built-in RS-485
(Master/Slave), COM3: built-in RS-485 (Master/Slave),
COM1 is typically the programming port.
Clock/Calendar (RTC) Year, Month, Day, Week, Hours, Minutes, Seconds
Special Modules Up to 8 AIO modules can be connected
Notes:
1. Data area is non-latched.
2. Data area is latched.
3. COM1: built-in RS232 port. COM2: built-in RS485 port. COM3: built-in RS485 port.
4. When input points(X) are expanded to 256 points, only 16 output points(Y) are applicable. Also,
when ouput points(Y) are expanded to 256 points, only 16 input points(X) are applicable.
5. This area is applicable only when the MPU is connected with AIO modules. Every AIO module
occupies 10 points