2. Programming Concepts
MN05003003E For more information visit: www.eaton.com
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Example 4: RTU mode setting of COM1、COM2、COM3
1. COM1, COM2 and COM3 support ASCII/RTU mode. COM1 is set by M1139, COM2 is set by
M1143 and COM3 is set by M1320. Set the flags ON enables RTU mode while OFF enables
ASCII mode.
2. Modify COM1/COM2/COM3 communication format to RTU mode, 9600bps, 8 data bits, even
parity, 1 stop bits (9600, 8, E, 1).
COM1:
MOV
D1036
SET M1138
M1002
SET M1139
H87
COM2:
MOV
H87 D1120
SET M1120
M1002
SET M1143
COM3:
MOV
H87 D1109
SET M1136
M1002
SET M1320
Note:
1. The modified communication format will not be changed when the ELC state turns from RUN
to STOP.
2. If the ELC is powered OFF then ON again after communication format is modified,
COM1~COM3 will be reset to default communication format (9600, 7, E, 1).
Function Group
Speed of X0~X5 can be detected at the same time
Number
M1036
Contents:
For ELC-PH VERSION 1.4 and above, SPD can detect the speed of X0~X5 at the same time. The
total bandwidth is 40KHz.
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