MPA3 V6.3 MOTOR PROTECTION RELAY MANUAL
Issue: R0, Date: 11/2010, CRN: 8168
MPAB010 Rev0
MPA3 V6.2 Motor Protection Relay Manual
Page 32
Modbus
Address
Description
Bitmask
5 = 100
6 = 120
7 = 140
8 = 160
9 = 180
10 = 200
11 = OFF
DELIBERATELY LEFT
BLANK
62
Analogue Output Mode:
00FF
0 = ???
1 = O/L 0-20mA
2 = Cur 0-20mA
3 = Iel 0-20mA
4 = RTD 0-20mA
5 = Ibal 0-20mA
6 = Va 0-20mA
7 = O/L 4-20mA
8 = Cur 4-20mA
9 = Iel 4-20mA
10 = RTD 4-20mA
11 = Ibal 4-20mA
12 = Va 4-20mA
63
Modbus RTU Comms Mode:
00FF
0 = ???
1 = 1200n
2 = 1200e
3 = 1200o
4 = 2400n
5 = 2400e
6 = 2400o
7 = 4800n
8 = 4800e
9 = 4800o
10 = 9600n
11 = 9600e
12 = 9600o
64
Modbus Address: 0=??, 1..31 00FF
Notes:
1)
MPA is a Modbus Slave RTU device
2)
Supported Modbus Commands:
03: Read Setpoints & Actual Values
04: Read Setpoints & Actual Values
06: Store Single Setpoint (See note 5)
16: Stores Multiple Setpoints (See Note 5)
3)
Supported Modbus Exception Responses:
01: Illegal Function
02: Illegal Data Address
03: Illegal Data Value
4)
Read Address space is 0001 to 0064
5)
Write Address:
Write Address support for address 0065-0096.
The only write address is 0065.
Data written to this location is folded back to
output address 0020.