Eaton ELC-PB, Programming Manual

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2. Prog rammi ng Con cep ts
M N050 03003E F or m ore info rm ati on vi sit: www.eaton.co m 2-93
Can be used in master or slave mode. Supports ASCII/RTU communication format, baud rate
(115200bps max), and modification on data length (data bits, parity bits, stop bits).
D1036: COM1
(RS-232) communication protocol of master/slave ELC. (b8 - b15 are not used) Please refer to
table below for settings.
COM2:
Can be used in master or slave mode. Supports ASCII/RTU communication format, baud rate
(921kbps max), and modification on data length (data bits, parity bits, stop bits).
D1120: COM2
(RS-485) communication protocol of master/slave ELC. Please refer to table below for settings.
COM3:
Can be used in master or slave mode. Supports ASCII/RTU communication format, baud rate
(921kbps max), and modification on data length (data bits, parity bits, stop bits).
D1109: COM3
(RS-485) communication protocol of master/slave ELC. (b8 - b15 are not used) Please refer to
table below for settings.
Content
b0 Data Length 0: 7 data bits, 1: 8 data bits
00: None
01: Odd
b1
b2
Parity bit
11: Even
b3 Stop bits 0: 1 bit, 1: 2bits
0001(H1): 110
0010(H2): 150
0011(H3): 300
0100(H4): 600
0101(H5): 1200
0110(H6): 2400
0111(H7): 4800
1000(H8): 9600
1001(H9): 19200
1010(HA): 38400
1011(HB): 57600
b4
b5
b6
b7
Baud rate
1100(HC):
1101(HD):
1110(HE):
1111(HF): 115200
500000 (COM2 / COM3)
31250 (COM2 / COM3)
921000 (COM2 / COM3)
b8 Select start bit 0: None 1: D1124
b9 Select the 1
st
end bit 0: None 1: D1125
b10 Select the 2
nd
end bit 0: None 1: D1126
b11~b15 Undefined
Example 1: Modifying COM1 communication format
1. Add the below instructions on top of the program to modify the communication format of
COM1. When the ELC switches from STOP to RUN, the program will detect whether M1138
is ON in the first scan. If M1138 is ON, the program will modify the communication settings of
COM1 according to the value set in D1036