41
EASTRON SDM320Y User Manual
06-2018 V1.0
2018 EASTRON Electronic. All Rights Reserved. www.eastron.com.cn
record
FF 00Stands for relay off
;
00 00Stands for relay
open
;
2
)
The time of relay operation
,
length
:
6byte
,
data
format
:
BCD
,
Year-Month-Date-Hour-Minute-Second
For example
(
Hex
):
FF 00
18 07 16 13 12 20,
FF 00
Stands for relay off, 18 07 16Stands for2018.7.16
,
13 12
20Stands for13:12:20
Data length : 8 byte
464511
Meter fault code
FB
FE
00 00 Stands for no trouble
00 01 Stands for relay cannot open
Data length : 2 byte
Data type : Hex
Only
read
464513
Serial number
FC
00
Meter serial number
Data length : 4 byte
Data type : unsigned int32
Only
read
464517
Electric unit price
FC
04
Read the electric unit price of the prepaid meter
;
Data length : 4 byte
Data type: Float
Only
read
464535
Meter alarm
amount
FC
16
Read the threshold value of the meter two - level alarm
,
unit RMB
Alarm value 1
,
Alarm value 2
For example
:
41 20 00 00
40 A0 00 00,
41 20 00 00
Stands for Alarm threshold1
(
RMB 10
),
40 A0 00 00
Stands for Alarm threshold2
(
RMB 5
)
Data length : 8 byte
Data type: Float
Only
read
464539
Meter emergency
amount
FC
1A
Read the emergency amount of the meter
,
unit:RMB
Data length : 4 byte
Data type: Float
Only
read
4.3 For example
1. Read input register
For example: Read "total active power"
Send: 01 04 01 56 00 02 90 27
, 01 = The modbus address of meter
04 = Function code
01 = High byte of register start address
56 = Low byte of register start address
00 = High bytes of register number