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60
ABB
ARC GUARD SYSTEM™ – CSU-2LV/2MV INSTALL ATION AND MAINTENANCE GUIDE
Modbus parameters
Parameters defining the Modbus settings.
Modbus id in range 0 – 248.
Parameter name
MODBUS_DEVICE_ID
Bit
15
14
13
ID
Modbus baud rate
0
(9600)
1
(19200)
2
(38400)
3
(57600)
Parameter name
MODBUS_BAUD_RATE
Bit
15
14
13
ID
Modbus frame format
0
(8 bits, even parity, 1 stop bit)
1
(8 bits, odd parity, 1 stop bit)
2
(8 bits, no parity, 1 stop bit)
3
(8 bits, no parity, 2 stop bit)
Parameter name
MODBUS_FRAME_FORMAT
Bit
15
14
13
Unit name
Unit name is 16 letters in ASCII format, stored in 8
registers each containing ascii code for two letters.
Parameter name
UNIT_NAME_1_2
UNIT_NAME_3_4
UNIT_NAME_5_6
UNIT_NAME_7_8
UNIT_NAME_9_10
UNIT_NAME_11_12
UNIT_NAME_13_14
UNIT_NAME_15_16
Bit
15
14
13
Register access
0x142 (R)
12
11
10
9
-
Register access
0x143 (R)
12
11
10
9
-
Register access
0x144 (R)
12
11
10
9
-
Register access
0x153 (RW)
0x154 (RW)
0x155 (RW)
0x156 (RW)
0x157 (RW)
0x158 (RW)
0x159 (RW)
0x15A (RW)
12
11
10
9
First letter
8
7
6
5
8
7
6
5
8
7
6
5
8
7
6
5
Second letter
4
3
2
1
Device id
4
3
2
1
ID
4
3
2
1
ID
4
3
2
1
0
0
0
0
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