Eaton ELC-PB - Page 34

2. Programming Concepts
MN05003003E For more information visit: www.eaton.com
2-5
C235~C245, 1 phase 1
input, 11 points, Note 3
C246, C247, C249, C250, 1
phase 2 input, 4 points
Note 1
C
Counter
PH controllers,
32bit high-
speed count
up/down
C251, C252, C254, C255, 2
phase 2 input, 4 points,
Note 3
Total
19 bits
ELC-PH12xxxx only
Initial step point
S0~S9, 10 points
Note 1
Zero point
return
S10~S19, 10 points (use
with IST instruction)
Note 1
General
S20~S511, 492 points
Note 1
Latched
S512~S895, 384 points
Note 3
Bit Contacts
S
Step point
Alarm
S896~S1023, 128 points
Note 3
Total
1024 bits
Sequential Function Chart
(SFC) usage
T Current value T0~T255, 256 words
C0~C199, 16-bit counter, 200 words
C Current value
C200~C254, 32-bit counter
General D0~D199, Note 1
D200~D999, Note 3
Latched
D2000~D4999, Note 3
Special D1000~D1999, 1000 words
D
Data register
Index E0~E3, F0~F3, Note 1
Total
5000
words
General storage for word
length data
Word Register
None
File register
0~1599, 1600 words
Note 4
Additional storage area to
be used
N Master control loop N0~N7, 8 points Master control nested loop
P Pointer P0~P255, 256 points Subroutine pointer
External
interrupt
I001 (X0), I101 (X1), I201 (X2), I301
(X3), I401 (X4), I501 (X5); 6 points
(all are rising-edge trigger)
Time interrupt
I601~I699, I701~I799, 2 points
(Timer resolution = 1ms)
Hi-speed
counter
I010, I020, I030, I040, I050, I060;
6 points
Pointer
I
Interrupt Service
Communication I150, 1 point
Address for interrupt
subroutines
Items Specifications Remarks