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 - 2 8 7
Program Example 1:
Communication between the ELC and MVX AC drives (ASCII Mode, M1143= OFF)
Program diagram
MOV D1120 H87
M1002
SET M1120
M1127
RST M1127
Receiving
completed
Setting communication protocol 9600, 8, E, 1
Communication protocol latched
Setting communication timeout 100ms
Process of receiving data
Receiving completed and flag reset
Setting transmission flag
X1
X0
Setting communication command:
Data address H0706
Data H1770
Device address 01
The receiving data in ASCII character
format is stored in D1070~D1085
MOV D1129 K100
SET M1122
MODWR H0706 K1 H1770
ELC
→
MVX, ELC transmits: “01 06 0706 1770 65 ”
MVX
→
ELC, ELC receives: “01 06 0706 1770 65 ”
ELC transmit message
Register Data Descriptions
D1089 low ‘0’ 30 H ADR 1
D1089 high ‘1’ 31 H ADR 0
ADR (1,0) is AC drive address
D1090 low ‘0’ 30 H CMD 1
D1090 high ‘6’ 36 H CMD 0
CMD (1,0) is instruction code
D1091 low ‘0’ 30 H
D1091 high ‘7’ 37 H
D1092 low ‘0’ 30 H
D1092 high ‘6’ 36 H
Data address
D1093 low ‘1’ 31 H
D1093 high ‘7’ 37 H
D1094 low ‘7’ 37 H
D1094 high ‘0’ 30 H
Data contents
D1095 low ‘6’ 36 H LRC CHK 1
D1095 high ‘5’ 35 H LRC CHK 0
LRC CHK (0,1) is error check
code