Circutor RGU-10 - CONFIGURATION; DIRECT SETTING; SETTING THE SENSITIVITY TRIP; DELAY SETTING AND MAIN RELAY CURVE

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Page 28
Example of MODBUS©
reading
QUESTION
0A 04 00 00 00 0A 71 76
0A Peripheral number, 10 in decimal
04 Reading function
00 00 Recording at which the reading is to start
00 0A Number of recording to be read: 10 in decimal
71 76 CRC character
RESPONSE
0A 04 14 00 0A 00 02 00 00 00 32 00 00 00 01 00 00 00 01 00 14 00 00 7E C9
0A Number of the peripheral that is responding, 10 in decimal
04 Reading function- the one used in the question
14 Number of bytes received (20)
00 0A 0000h address: Peripheral number (10)
00 02 0001h address: Baud rate (2- 9,600 bauds)
00 00 0001h address: Type of parity (0 - None)
00 32 0003h address: Operating frequency (50 Hz)
00 00 0004h address: Preset trip current (0-30mA)
00 01 0005h address: Preset time for trip delay (1-INS)
00 00 0006h address: Relay output trip polarity (0-Standard)
00 01 0007h address: % I
∆ N trip by pre-alarm. (1-50%)
00 14 0008h address: Preset time for pre-alarm delay (1-20 ms)
00 00 0009h address: Pre-alarm output relay polarity (0-Standard)
7E C9 CRC Character
Example of MODBUS© writing
QUESTION
01 10 00 00 00 05 0A 00 01 00 03 00 00 00 3C 00 00 FF 64
01 Peripheral number (1)
10 Modbus instruction number: multiple parameter writing (16)
00 00 Initial recording of writing (0)
00 05 Number of recordings to be changed (5)
0A Number of bytes to pass (10)
00 01 0000h address: Equipment peripheral number.
00 03 0001h address: baud rate (3 - 19,200 bauds)
00 00 0002h address: type of preset parity (0 -None)
00 3C 0003h address: operating frequency (3C - 60 Hz)
00 1E 0004h address: trip current (0 - 3030 mA)
FF 64 CRC character
RESPONSE
01 10 00 00 00 05 00 0A
01 Peripheral number (1)
10 Modbus instruction number: multiple parameter writing (16)
00 00 Initial recording of writing (0)
00 05 Number of recordings to be changed (5)
00 0A Frame CRC
Each Modbus frame has a maximum limit of 26 recordings