CHAPTER 4: SETPOINTS
DEVICE
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
4–25
The slave response to this function code is the slave address, function code, a count of the
number of data bytes to follow, the data itself and the CRC. Each data item is sent as a two
byte number with the high order byte sent first.
For example, consider a request for slave 17 to respond with 3 registers starting at address
006B. For this example the register data in these addresses is as follows:
The master/slave packets have the following format:
Table 4-5: Master Packet Format for Function Code 03H
Table 4-6: Slave Packet Format for Function Code 03H
ASE 2000 V2 Example
--> 00 00 00 00 00 06 FE 03 4A 8A 00 04
--> 00 00 00 00 00 0B FE 03 08 00 00 04 B0 00 00 00 64
Administrator Login and Commands via Modbus for 8 Series Relays
Logging in as Administrator
Logging in as Administrator is demonstrated in the example below. The process requires
writing 44 bytes which consist of the Role ID and Password. Password characters are 22
bytes and role characters are also 22 bytes. The logging in must be done using a single
Modbus command using Function 10H (Store Multiple Setpoints).
The following table shows data to be written to the relay to login as Administrator. The
relay password in this example is 0.
Address
Data
006B
022B
006C
0000
006D
0064
MASTER TRANSMISSION
BYTES
EXAMPLE
DESCRIPTION
SLAVE ADDRESS
1
FE
message for slave 254
FUNCTION CODE
1
03
read registers
DATA STARTING ADDRESS
2
4A 8A
data starting at 4A8A
NUMBER OF SETPOINTS
2
00 04
4 registers = 8 bytes total
CRC (low, high)
2
67 F4
CRC error code
SLAVE RESPONSE
BYTES
EXAMPLE
DESCRIPTION
SLAVE ADDRESS
1
FE
message from slave 254
FUNCTION CODE
1
03
read registers
BYTE COUNT
1
08
4 registers = 8 bytes total
DATA 1
2
00 00
value in address 4A8A (16-bit)
DATA 2
2
04 B0
value in address 4A8B (16-bit)
DATA 3
2
00 00
value in address 4A8C (32-bit)
DATA 4
2
00 64
CRC (low, high)
2
E7 75
CRC error code
Содержание 869
Страница 10: ...VIII 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ...
Страница 48: ...1 38 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION ...
Страница 78: ...2 30 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ELECTRICAL INSTALLATION CHAPTER 2 INSTALLATION ...
Страница 127: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL 3 49 ...
Страница 129: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL 3 51 ...
Страница 538: ...4 406 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 4 SETPOINTS ...
Страница 578: ...6 22 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FLEXELEMENTS CHAPTER 6 METERING ...
Страница 592: ...7 14 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL CLEAR RECORDS CHAPTER 7 RECORDS ...