SFLC-211-194

SFLC-110L
COMMUNICATION SPECIFICATION(Modbus RTU mode protocol)
HARDWARE MODEL E

SFLC-211-194

Content

1. Communication specification ･･････････････････････････････････････

2

2. Transmission and reception protocol ･･････････････････････････････

2

3. Calculation method of CRC-16 ･････････････････････････････････････

3

4. Communication process flow chart ･････････････････････････････････

4

5. SFLC communication specification terminal arrangement ････････････

4

6. Modbus protocol RTU mode ･････････････････････････････････････････

5

6.1

Function code ･････････････････････････････････････････････････

5

6.2

Abnormal response ･････････････････････････････････････････････

5

6.3

Measurement range request ･････････････････････････････････････

5

6.4

Setting value request ･････････････････････････････････････････

7

6.5

Status request ････････････････････････････････････････････････ 10

6.6

Model information request ･････････････････････････････････････ 11

6.7

Measurement value request ･････････････････････････････････････ 12

6.8

Maximum / minimum reset request ･･･････････････････････････････ 16

6.9

Loopback test ･････････････････････････････････････････････････ 17

1SFLC-211-194

1. Communication specification
Item

Specification

Standard

Default setting

TIA-485-A (2003)
Modbus protocol RTU mode

Protocol－Function code：03H，04H，06H，08H

Transmission system

Half-duplex two-wire system－

Synchronous system

Asynchronous communication method－

Transmission rate１

( )4800bps / 9600bps / 19200bps / 38400bps

9600bpsModulation code

NRZ－

Start bit

1 bit

－

8 bit

－

Data length
１

Parity( )NONE / Even number / Odd number

Stop bit(１)

1 bit / 2 bit

1 bit

1000m (The total extension)－

Cable length１

Address( )Even number

1 to 247 (Connection is possible to 31 sets.)

1

Error detection

CRC-16 ( X 1 6 ＋ X 1 5 ＋ X 2 ＋ 1 )－Transmission character

Binary－Transmission data are sent out from a bit 0.
Note(１) A setting change is made with a front switch.

2. Transmission and reception protocol(1) Usual request (Query)

Master side
Address

Function
code

Data

CRC

To a response, it takes the following time.
4800bps：10 to 12ms
9600bps：10 to 12ms
19200bps：10 to 12ms
38400bps：10 to 12ms
Address
Address

Function
code

Data

Slave
(SFLC) side

CRC

Please spare the following time
till the next transmission.
4800bps：Over 10ms
9600bps：Over 5ms
19200bps：Over 5ms
38400bps：Over 3ms(2) Brosdcast request (Query)
If all stations are specified in the address, it becomes a broadcast request.
becomes unresponsive.

Functioncode

At this time, the slave side

Please spare the following time till the next transmission.
4800bps：Over 22ms
9600bps：Over 22ms
19200bps：Over 22ms
38400bps：Over 22ms

Master side
Address

Function
code

Data

Address

CRC

Functioncode

No answer
Slave (SFLC) side2

SFLC-211-194(3) The timeout between data
The interval between data must be 1.5 characters or less.
Please make the interval between data fewer than the following time.
A timeout error occurs.
4800bps：Below 3.8ms
9600bps：Below 1.9ms
19200bps：Below 0.9ms
38400bps：Below 0.5ms
Address

Function
code

Data

CRC

3. Calculation method of CRC-16
CRC-16 is adopted as error checking in Modbus RTU mode.
An address, a function code, and data are calculated by the following method.
(1) Arithmetic process

CRC-16① 2 bytes of data-area X is secured to a CRC calculation.
Data X←FFFFH
Assignment② FFFFH is substituted for ① as initial value.
③ XOR of data X and the nth data (n=1) is calculated.
Assign it to data X.
④ The 1-bit right shift of the data X is done.

Data X ←Data X XOR nth data

⑤ If carry occurs in operation of ④, data X and XOR
of A001H are taken.
⑥ Operation of ④,⑤ is repeated until it shifts 8 times.

Data X
1 bit right shift

Carryoccurrence ?
No⑦ The next data (n+1) and XOR of data X is calculated.
Assign it to data X.
Yes

Data X ←Data X XOR A001H⑧ Operation of ④ to ⑦ is repeated until processingof all data is completed.
⑨ 1 byte of upper and 1 byte of lower of data-area X
for a CRC calculation are exchanged.

(2) Example of calculation
No

8 times shift
End ？
Yes

n+1
No

CRC Object range
1 byte1 byte2 byteAddress Function code Data address
All data end？

01H
Yes
The upper and lower
byte of data X,
exchange

END

3

04H

00H

00H

2 byte2 byteNumber ofrequest data

CRC

00H

19H

31C0H

SFLC-211-194

4. Communication process flow chart
Idle

Data receiving

Local address ？

No

YES
Error
Error check

NormalFunction code
check

Error

NormalData-address
range check

Out ofrange

NormalDatatransmission

Error codeanswer

5. SFLC communication specification terminal arrangement
Terminal No.
SFLC-110L
16＋
Please be sure to connect.

17

18

－

SG

(Communication is possible even if not connected.)Ter.

(Please short-circuit a terminal 17 and device used as theterminus on a topology.)

SHIELD(This is a relay terminal for the shielded wire of thecommunication cable.)100Ω
R

Inside common

19

20

4

SFLC-211-194

6. Modbus protocol RTU mode
6.1 Function code
The next function code is supported with this product.
Code

03

04
06
08

Data
addressName
Measurement range
requestSetting value request
Status request
Model information
requestMeasurement value
requestMaximum, Minimum
reset

VT ratio, CT ratio and the readout of multiplying
factor.
The readout of setting value (measurement, alarm).
The status readout of alarm output.
The readout of model information (type code, phasewire, rated voltage).
The readout of measurement value (instant value /maximum value / minimum value).
Reset of the maximum value and the minimum value
is performed.
The communication test of master and slave isperformed.

40001 to40101 to40201 to40501 to30001 to40301 toLoopback test

Modbus originalfunctionContents－

Holding register
readout

Input-register
readout
Writing of simplex
holding register
Diagnosis

6.2 Abnormal response
In case the message transmitted from the master is judged to be abnormal, this product does the next abnormal
answer.
(1) In case it becomes a no answer①：In case a message transmission error occurs. (Overrun，Framing，Parity error，CRC)②：In case the data interval of a message exceeds a regulation value (1.5 characters).
③：In case the message frame exceeding 8 bytes is received.
(2) In case as answered in an error code.
In the error that does not correspond to (1), the following abnormal response is returned.
At this case, the code that applied 80H to the code of a demand is returned to a function code.
And, the generated error code is returned as data.
Error code list
Error code
Contents
01H
The function code besides regulation is received.
02H
Data address is out of range.
The data more than the number of answer data are
03H
required. Setting out of setting range.

1 byte1 byte1 byte2 byteAddress

Functioncode(+80H)

Error
code

CRC

01H

84H

02H

C2C1H

6.3 Measurement range request
Used for reading measurement-range information, such as VT and CT ratio, in this product.
There is no brosdcast. A function code designates 03H.
(1) Data request (Query)
In case it performs setting value request, it is necessary to designate the start address of data to acquire.
When a data address is transmitted, please subtract 40001 from the address in data-address list.
Please assign the number of requested data as the number of data.
1

2

Address

Function
code

Data address

Number of data

CRC

01H

03H

0000H

0003H

05CBH

Data address list
Function code
03H

3

4

Data address
40001
40002
40003

5

6

Item
VT ratio
CT ratio
Multiplying factor
578SFLC-211-194(2) Response
If range request is performed normally, the following response will be returned from this product side.
Example) Data address：40001，Number of data：3.
1
Address23FunctioncodeAnswer
byte
count

4

5

6

VT ratio7
CT ratio

89Multiplying factor

10

11
CRC

● VT ratio，CT ratio
VT ratio data ＝ Primary rated value ÷ 110V
CT ratio data ＝ Primary rated value ÷ 5A × 10
Primary rated
(V)
110
220
380 (２)440460 (２)480 (２)
880
1100
1650
2200
3300
6600
11k
13.2k
13.8k (２)16.5k
18.4k (２)
22k
33k
66k
77k
110k
132k
154k
187k
220k
275k
380k (２)550k

Setting value
data
0001H (1)0002H (2)0003H (3)0004H (4)0005H (5)0006H (6)0008H (8)000AH (10)000FH (15)0014H (20)001EH (30)003CH (60)0064H (100)0078H (120)007DH (125)0096H (150)00A7H (167)00C8H (200)012CH (300)0258H (600)02BCH (700)03E8H (1000)
04B0H (1200)
0578H (1400)
06A4H (1700)
07D0H (2000)
09C4H (2500)
0D7FH (3455)
1388H (5000)

Primary rated
(A)
5
6
7.5
8
10
12
15
20
25
30
40
50
60
75
80
100
120
150
200
250
300
400
500
600
750
800
900
1000
1200

Setting value
data
000AH (10)000CH (12)000FH (15)0010H (16)0014H (20)0018H (24)001EH (30)0028H (40)0032H (50)003CH (60)0050H (80)0064H (100)0078H (120)0096H (150)00A0H (160)00C8H (200)00F0H (240)012CH (300)0190H (400)01F4H (500)0258H (600)0320H (800)03E8H (1000)
04B0H (1200)
05DCH (1500)
0640H (1600)
0708H (1800)
07D0H (2000)
0960H (2400)

Primary rated
(A)
1500
1600
1800
2000
2500
3000
4000
5000
6000
7500
8000
9000
10000
12000
15000
20000
30000

Setting value
data
0BB8H (3000)
0C80H (3200)
0E10H (3600)
0FA0H (4000)
1388H (5000)
1770H (6000)
1F40H (8000)
2710H (10000)
2EE0H (12000)
3A98H (15000)
3E80H (16000)
4650H (18000)
4E20H (20000)
5DC0H (24000)
7530H (30000)
9C40H (40000)
EA60H (60000)

The number of ( ) expresses decimal number data.
Note(２) Because broken numbers will occur if it divides by 110V, it becomes intrinsic set-value data.
● Multiplying factor
Multiplying factor
×0.01
×0.1
×1
×10
×100
×1000
×10000Communication data
0005H (5)0006H (6)0000H (0)0001H (1)0002H (2)0003H (3)0004H (4)The number of ( ) expresses decimal number data.

6

SFLC-211-194

6.4 Setting value request
Read the setting value (measurement, alarm) from this product. There is no broadcast.

Function code is 03H.

(1) Data request (Query)
In case it performs setting value request, it is necessary to designate the start address of data to acquire.
When a data address is transmitted, please subtract 40001 from the address in data-address list.
Please assign the number of requested data as the number of data.
1

2

3

4

5

6

7

8

Address

Function
code

Data address

Number of data

CRC

01H

03H

0064H

000EH

85D1H

Data address list
Function code

03H

Data address

Item

40101

Alarm output

Output factor

40102
40103
40104

0000H (Fixation)
Alarm output
Reset method
Alarm output Contact delay time

40105
40106
40107
40108
40109
40110
40111
40112
40113
40114
40115
40116
40117
40118
40119

0000H (Fixation)
Demand current Upper limit value
Demand current Time interval
Demand power Upper limit value
Demand power Time interval
Demand power Operation method
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)

40120
40121
40122
40123
40124
40125
40126

0000H (Fixation)
0000H (Fixation)
Instantaneous detection
Instantaneous detection
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)

40127
40128

0000H (Fixation)
Tidal current measurement

7

Voltage upper limit value
Voltage lower limit value

SFLC-211-194(2) Response
If data request is performed normally, the following response will be returned from this product side.
Example) Data address：40101，Number of data：10.
1
Address23FunctioncodeAnswer
byte
count

4

14

15

5

Alarm output
output factor

16

Demand current
upper limit value

6

7

8

Alarm output
reset method

0000H

17

18

Demand current
time interval

9

19

20

Demand power
upper limit value

10

12

Alarm output
contact delay time

21

Demand power
time interval

11

22

23

13
0000H

24

Demand power
operation method

25
CRC● Setting value data
(1) Alarm output, output factor
Communication data
0000H
0001H
0002H
000AH

Contents of output
Alarm OFF
Demand current
Demand power
voltageThose without an alarm output,"0000H" is returned.

(2) Alarm output reset method
B15 B14 B13 B12 B11 B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

B0

－

－

－

－

－

－

－

－

－

－

①

－

－

－

－

－

No.

Reset factor

①

Alarm

0：Auto reset
1：Manual resetThose without an alarm output,"0000H" is returned.

Communication data
0000H to 012CH (0 to 300)

Those without an alarm output,"0000H" is returned.

(3) Alarm output 1,2 contact delay time
Contact delay time (s) ＝ Communication data
Contact delay time
0 to 300s (1s step)(4) Demand current upper limit value
Demand current upper limit value ＝ Communication data
Upper limit value
5 to 100％ (1％ step)，OFF

Communication data
0005H to 0064H (5 to 100)，OFF：0065H (101)(5) Demand current time interval
Demand current time interval ＝ Communication data
Time interval
0 second
5 seconds
10 seconds
20 seconds
30 seconds
40 seconds
50 seconds

Communication
data
0000H
(0)
0005H
(5)
000AH
(10)
0014H
(20)
001EH
(30)
0028H
(40)
0032H
(50)

Time interval
1 minute
2 minutes
3 minutes
4 minutes
5 minutes
6 minutes
7 minutes

8

Communication
data
003CH
(60)
0078H (120)00B4H (180)00F0H (240)012CH (300)0168H (360)
01A4H (420)Time interval
8 minutes
9 minutes
10 minutes
15 minutes
20 minutes
25 minutes
30 minutes

Communication
data
01E0H (480)021CH (540)0258H (600)0384H (900)04B0H (1200)
05DCH (1500)
0708H (1800)

SFLC-211-194(6) Demand power upper limit value
Demand power upper limit value ＝ Communication data
Upper limit value
5 to 100％ (1％ step)，OFF

Communication data
0005H to 0064H (5 to 100)，OFF：0065H (101)(7) Demand power time interval
Demand power time interval ＝ Communication data
Time interval
0 second
5 seconds
10 seconds
20 seconds
30 seconds
40 seconds
50 seconds

Communication
data
0000H
(0)
0005H
(5)
000AH
(10)
0014H
(20)
001EH
(30)
0028H
(40)
0032H
(50)

Time interval
1 minute
2 minutes
3 minutes
4 minutes
5 minutes
6 minutes
7 minutes

Communication
data
003CH
(60)
0078H (120)00B4H (180)00F0H (240)012CH (300)0168H (360)
01A4H (420)Time interval
8 minutes
9 minutes
10 minutes
15 minutes
20 minutes
25 minutes
30 minutes(8) Demand power operation method
Operation method
The operation method tailored to the bimetallic typeThe averaging operator in a demand time intervalCommunication data
0001H
0002H

(9) Instantaneous detection voltage upper limit value
Voltage upper limit value ＝ Communication data
upper limit value
30 to 150％ (1％ step)，OFF

Communication data
001EH to 0096H (30 to 150)，OFF：0097H (151)(10) Voltaeg lower limit value
Voltaeg lower limit value ＝ Communication data
Lower limit value
30 to 150％ (1％ step)，OFF

Communication data
001EH to 0096H (30 to 150)，OFF：001DH (29)(11) Tidal current measurement
Measurement
General measurement
Tidal current measurement

Communication data
0001H
0002H

9

Communication
data
01E0H (480)021CH (540)0258H (600)0384H (900)04B0H (1200)
05DCH (1500)
0708H (1800)

SFLC-211-194

6.5 Status request
Used to read the instrument status. There is no broadcast. Function code is 03H.
(1) Data request (Query)
In case it performs setting value request, it is necessary to designate the start address of data to acquire.
When a data address is transmitted, please subtract 40001 from the address in data-address list.
Please assign the number of requested data as the number of data.
1

2

3

4

5

6

7

8

Address

Function
code

Data address

Number of data

CRC

01H

03H

00C8H

0001H

05F4H

Data address list
Function code

Data address

Item

03H

40201

Status of alarm output(2) Response
If status request is performed normally, the following response will be returned from this product side.
Example) Data address：40201，Number of data：1.
123

Address

FunctioncodeAnswer
byte
count

4

5

6

Alarm-output data

7
CRC

● Bit allocation of alarm-output data
B15 B14 B13 B12 B11 B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

B0

－

－

－

－

－

－

－

－

－

－

①

Bit
①

－

－

－

－

Name
Alarm output－

OFF (0)No detection

ON (1)
Detection

10

Those without an alarm output,"0000H" is returned.

SFLC-211-194

6.6 Model information request
Used to read model information, rated voltage and rated current from this product.
There is no broadcast. Function code is 03H.
(1) Data request (Query)
In case it performs a model information request, it is necessary to designate the start address of data toacquire. When a data address is transmitted, please subtract 40001 from the address in data-address list.
Please assign the number of requested data as the number of data.
1

2

3

4

5

6

7

8

Address

Function
code

Data address

Number of data

CRC

01H

03H

01F4H

0003H

45C5H

Data address list
Function code

Data address

03H

40501
40502
40503

Item
Model information,
Model information,
Model information,

Type code
Phase wire
Rated voltage(2) Response
If model information request is performed normally, the following response will be returned from thisproduct side.
Example) Data address：40501，Number of data：3.
12Address

Functioncode

3
Answerbyte
count● Model information.

4

5Type code

6

7

Phase wireType code

Type

Communication data

SFLC

0011H

● Model information.

Phase wireType

Communication data

Three-phase three-wireSingle-phase three-wire (R-B-W)
Single-phase three-wire (R-Y-W)

0001H
0002H
0003H

Single-phase three-wire (Y-B-W)
Single-phase

0004H
0005H

● Model information.

Rated voltage.

Rated voltage

Communication data

AC110V
AC220V

0001H
0002H

11

8

9

Rated voltage

10

11
CRC

SFLC-211-194

6.7 Measurement value request
Read the measurement value from this product. There is no broadcast. Function code is 04H.
(1) Data request (Query)
In case it performs setting value request, it is necessary to designate the start address of data to acquire.
If a data address is transmitted, please subtract 30001 from the address in data-address list.
Please assign the number of requested data as the number of data.
< Caution > Electric energy (Wh, varh) serves as 2 words (4 bytes) composition. Please give the number ofdata as 2. And, the point (data 0000H fixation) where a measurement value does not exist depending
on a phase wire is also treated as one data.
1

2

3

4

5

6

7

8

Address

Function
code

Data address

Number of data

CRC

01H

04H

0000H

001DH

3003H

Data-address list (1)Function
code
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04

Data
address
30001
30002
30003
30004
30005
30006
30007
30008
30009
30010
30011
30012
30013
30014
30015
30016

04

30017

04

30018

04

30019

04

30020

04

30021

04

30022

04

30023

04

30024

04

30025

04

30026

Model
3-phase 3-wireSingle-phase 3-wireSingle-phase
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Voltage (RY)
Voltage (RW)
Voltage
Voltage (YB)
Voltage (BW)0000H (Fixation)
Voltage (BR)
Voltage (RB)
0000H (Fixation)
Current (R)Current (R)Current
Current (Y)Current (W)0000H (Fixation)
Current (B)Current (B)0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Demand current (R)Demand current (R)Demand current
Demand current (Y)Demand current (W)0000H (Fixation)
Demand current (B)Demand current (B)0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Active power
Active power
Active power
Demand power
Demand power
Demand power
Watt-hour (Power receiving)
Watt-hour (Power receiving)
Watt-hour (Power receiving)
High
High
High
Watt-hour (Power receiving)
Watt-hour (Power receiving)
Watt-hour (Power receiving)
Low
Low
Low
Watt-hour (Power transmission) Watt-hour (Power transmission) Watt-hour (Power transmission)
High
High
High
Watt-hour (Power transmission) Watt-hour (Power transmission) Watt-hour (Power transmission)
Low
Low
Low
Reactive power
Reactive power
Reactive power
var-hour (Power receiving LAG) var-hour (Power receiving LAG) var-hour (Power receiving LAG)
High
High
High
var-hour (Power receiving LAG) var-hour (Power receiving LAG) var-hour (Power receiving LAG)
Low
Low
Low
var-hour (Power receiving LEAD) var-hour (Power receiving LEAD) var-hour (Power receiving LEAD)
High
High
High
var-hour (Power receiving LEAD) var-hour (Power receiving LEAD) var-hour (Power receiving LEAD)
Low
Low
Low
var-hourvar-hourvar-hour(Power transmission LAG)
(Power transmission LAG)
(Power transmission LAG)
High
High
High

12

SFLC-211-194

Data-address list (2)Functioncode

Dataaddress

04

30027

04

30028

04

30029

04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04
04

30030
30031
30032
30033
30034
30035
30036
30037
30038
30039
30040
30041
30042
30043
30044
30045
30046
30047
30048
30049
30050
30051
30052
30053
30054
30055
30056
30057
30058
30059
30060
30061
30062
30063
30064
30065
30066
30067
30068
30069
30070
30071
30072
30073
30074

3-phase 3-wirevar-hour(Power transmission LAG)
Low
var-hour(Power transmission LEAD)
High
var-hour(Power transmission LEAD)
Low
0000H (Fixation)
Power factor
Frequency
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Maximum voltage (RY)
Maximum voltage (YB)
Maximum voltage (BR)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Minimum voltage (RY)
Minimum voltage (YB)
Minimum voltage (BR)Maximum current (R)Maximum current (Y)Maximum current (B)0000H (Fixation)
Minimum current (R)Minimum current (Y)Minimum current (B)0000H (Fixation)
Maximum demand current (R)Maximum demand current (Y)Maximum demand current (B)0000H (Fixation)
Minimum demand current (R)Minimum demand current (Y)Minimum demand current (B)0000H (Fixation)
Maximum power
Minimum power
Maximum demand power
Minimum demand power
Maximum reactive power
Minimum reactive power
0000H (Fixation)
0000H (Fixation)
Maximum power factor
Minimum power factor
Maximum frequency
Minimum frequency
0000H (Fixation)

Model
Single-phase 3-wirevar-hour(Power transmission LAG)
Low
var-hour(Power transmission LEAD)
High
var-hour(Power transmission LEAD)
Low
0000H (Fixation)
Power factor
Frequency
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Maximum voltage (RW)
Maximum voltage (BW)Maximum voltage (RB)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Minimum voltage (RW)
Minimum voltage (BW)Minimum voltage (RB)Maximum current (R)Maximum current (W)Maximum current (B)0000H (Fixation)
Minimum current (R)Minimum current (W)Minimum current (B)0000H (Fixation)
Maximum demand current (R)Maximum demand current (W)Maximum demand current (B)0000H (Fixation)
Minimum demand current (R)Minimum demand current (W)Minimum demand current (B)0000H (Fixation)
Maximum power
Minimum power
Maximum demand power
Minimum demand power
Maximum reactive power
Minimum reactive power
0000H (Fixation)
0000H (Fixation)
Maximum power factor
Minimum power factor
Maximum frequency
Minimum frequency
0000H (Fixation)

13

Single-phasevar-hour(Power transmission LAG)
Low
var-hour(Power transmission LEAD)
High
var-hour(Power transmission LEAD)
Low
0000H (Fixation)
Power factor
Frequency
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Maximum voltage
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Minimum voltage
0000H (Fixation)
0000H (Fixation)
Maximum current
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Minimum current
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Maximum demand current
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Minimum demand current
0000H (Fixation)
0000H (Fixation)
0000H (Fixation)
Maximum power
Minimum power
Maximum demand power
Minimum demand power
Maximum reactive power
Minimum reactive power
0000H (Fixation)
0000H (Fixation)
Maximum power factor
Minimum power factor
Maximum frequency
Minimum frequency
0000H (Fixation)

SFLC-211-194(2) Response
If measurement value requirements are performed normally, the following response will be returned fromthis product side.
Example) Data address：30001，Number of data：29 (3-phase 3-wire)
1

2

3

4

5

6

7

8

9

Address

FunctioncodeAnswerbyte count

00

00

00

00

00

00

10

11

12

13

14

15

16

17

RY line voltage
V(RY)

YB line voltage
V(YB)

BR line voltage
V(BR)R phase current
A(R)

18

20

21

22

23

24

Y phase currentA(Y)B phase current
A(B)

00

00

26

28

30

31

32

00

00

Active power
W

38

39

40

19

27

Y phase demand current
DA(Y)
34

35

29

B phase demand current
DA(B)
36

37

Demand power
DW

Watt-hour(Power receiving)
Wh High

42

44

43

Watt-hour(Power transmission)-Wh Low
50

51

45

Reactive power
var
52

53

Watt-hour(Power receiving)
Wh Low
46

47

Reactive power(Power receiving, LAG)
varh（LAG） High
54

55

25

R phase demand current
DA(R)
33

41

Watt-hour(Power transmission)-Wh High
48

49

Reactive power(Power receiving, LAG)
varh（LAG） Low
56

57

Reactive power
Reactive power
Reactive power
Reactive power(Power receiving, LEAD) (Power receiving, LEAD) (Power transmission, LAG)(Power transmission, LAG)
varh（LEAD） highvarh（LEAD） Low-varh（LAG） High-varh（LAG） Low
58

59

60

61

Reactive power
Reactive power(Power transmission, LEAD) (Power transmission, LEAD)-varh（LEAD） High-varh（LEAD） Low

14

62

63
CRC

SFLC-211-194

Transmission scaling
Item
Voltage，
Minimum voltage，Maximum voltage

Input
3φ3W
1φ2W

AC0 to 150V，AC0 to 300V (Line)

AC0 to 300V (Line)
1φ3W
AC0 to 150V Phase-voltage full-scale 150V
４
( )(Phase)Phase-voltage full-scale 300V
Current，Minimum current，Maximum current，
Minimum demand current，
AC0 to 5A
Maximum demand current，Demand current
Active power，-1kW to 0 to +1kW
3φ3W 110V
Minimum active power， 1φ3W 220V
-2kW to 0 to +2kW
Maximum active power，
110V-500W to 0 to +500W
Maximum demand power，
1φ2W
Minimum demand power，
220V-1kW to 0 to +1kW
Demand power
LEAD 1kvar to 0 to LAG 1kvar
3φ3W 110V
Reactive power，
1φ3W 220V
LEAD 2kvar to 0 to LAG 2kvar
Minimum reactive power，
110V
LEAD 500var to 0 to LAG 500var
Maximum reactive power 1φ2W
220V
LEAD 1kvar to 0 to LAG 1kvar
Power factor，Minimum power factor，Maximum power factor
Frequency，
Minimum frequency，Maximum frequency
Watt-hour (Power receiving /Power transmission)
var-hour (Power receiving /Power transmission，LAG/LEAD)

LEAD 0 to 1 to LAG 0
LEAD 0.5 to 1 to LAG 0.5
45 to 55Hz
55 to 65Hz
45 to 65Hz
0 to 99999.9

Communication data (３)0000H to 2710H (0 to 10000)
0000H to 2710H (0 to 10000)
0000H to 2710H (0 to 10000)
0000H to 1388H (0 to 5000)±0.5％0000H to 2710H (0 to 10000)±0.5％

D8F0H to 0000H to 2710H(-10000 to 0 to +10000)±0.5％

EC78H to 0000H to 1388H(-5000 to 0 to +5000)±0.5％

D8F0H to 0000H to 2710H(-10000 to 0 to +10000)±0.5％

EC78H to 0000H to 1388H(-5000 to 0 to +5000)
0000H to 1388H to 2710H(0 to 5000 to 10000)
09C4H to 1388H to 1D4CH(2500 to 5000 to 7500)
1194H to 157CH (4500 to 5500)
157CH to 1964H (5500 to 6500)
1194H to 1964H (4500 to 6500)
00000000H to 000F423FH(0 to 999999)(５)00000000H to 000F423FH(0 to 999999)(５)0 to 99999.9

Intrinsic
error

±0.5％

±2.0％

±0.5％
±2.0％
±2.5％

Note(３) The range of communication data, Data at the case of low input.
・ Current：120％ rating [0000H to 2EE0H](0 to 12000), Less than 0.5％ of rated current is [0000H](0).
・ Demand current, maximum demand current：200％ rating [0000H to 4E20H](0 to 20000), Less than 0.5％ ofrated current is [0000H](0).
・ Voltage：101％ full-scale [0000H to 2774H](0 to 10100), the phase voltage at the case of single-phase
three-wire phase voltage full-scale 300V setting is [0000H to 13BAH](0 to 5050), Less than
0.5％ of rated voltage is [0000H](0).
・ Active power，Reactive power：120％ rating [D120H to 2EE0H](-12000 to 12000). At the case of singlephase is [E890H to 1770H](-6000 to 6000). Less than ±0.5％ of rated power
and reactive power is [0000H](0).
・ Demand, maximum demand：±200％ rating [B1E0H to 4E20H](-20000 to 20000), At the case of single-phaseis [D8F0H to 2710H](-10000 to 10000). Less than ±0.5％ of rated power andreactive power is [0000H](0).
・Power factor：Less than 20％ of input voltage full-scale and less than 2％ of rated current are[1388H](5000).
・Frequency：±1％ of measuring range. 45 to 55Hz：44.9 to 55.1Hz [118AH to 1586H] (4490 to 5510)
55 to 65Hz：54.9 to 65.1Hz [1572H to 196EH] (5490 to 6510)
45 to 65Hz：44.8 to 65.2Hz [1180H to 1978H] (4480 to 6520)
Less than 20％ of voltage full-scale is [0000H].
・Active power，Reactive power：Minus data expresses with two's complement.
(-10000 to 0 to 10000：D8F0H to 0000H to 2710H)
Note(４) The default setting of phase-voltage full-scale setting is 300V.
Note(５) By multiplying the electric energy data by the multiplier data, it becomes kWh (kvarh).
Example) Watt-hour (kWh) ＝ Watt-hour date × Multiplying factor data ＝ 123.4×100 ＝ 12340kWh

15

SFLC-211-194

6.8 Maximum / minimum reset request
Used to perform maximum / minimum reset for this product.
When 00H is specified for the address, there will be broadcast.

Function code is 06H.

(1) Maximum / minimum reset request (Query)
When making a maximum / minimum reset request, it is necessary to send the write data including the data
address and the element to be reset.
If a data address is transmitted, please subtract 40001 from the address in data-address list.
1

2

3

4

5

6

7

8

Address

Function
code

Data address

Write data

CRC

01H

06H

012CH

001FH

0837H

Data address list
Function code
06H

Data address
40301

Item
Maximum, minimum reset● Maximum minimum reset, Bit allocation of write data (６)B15 B14 B13 B12 B11 B10

B9

B8

B7

B6

B5

B4

B3

B2

B1

B0

－

⑩

⑨

⑧

⑦

⑥

⑤

④

③

②

①

№
①
②
③
④
⑤
⑥

－

－

－

⑫

⑪

Contents of output
Voltage (Maximum，Minimum)
Current (Maximum，Minimum)
Active power (Maximum，Minimum)
Reactive power (Maximum，Minimum)－
Power factor (Maximum，Minimum)

№
⑦
⑧
⑨
⑩
⑪
⑫

Contents of output
Frequency (Maximum，Minimum)－
Demand current (Maximum，Minimum)
Demand power (Maximum，Minimum)－－

Note(６) Except an applicable bit and the measurement factor that doesn’t exist by the model, data is
not reset as for ON (1).
(2) Response
If data change is performed normally, the following response will be returned from this product side.
If broadcast (address 00H) is specified, there is no response.
1

2

Address

Function
code

3

4

Data address

5

6

Change data

7

8
CRC

The same data as the write data of the maximum / minimum reset element is returned to the change data.

16

SFLC-211-194

6.9 Loopback test
The loopback test is a function to test whether the master and slave (SFLC) are communicating normally.
Arbitrary data is returned as it is. There is no broadcast. Function code is 08H.
(1) The request of loopback (Query)
When performing a loopback test, it is necessary to send data and diagnostic codes used for diagnosis.
Specify 0000H as the diagnostic code. Specify any value from 0000H to FFFFH for the diagnostic data.
1

2

3

4

5

6

7

8

Address

Function
code

Diagnostic code

Diagnostic data

CRC

01H

08H

0000H

04D2H

6296H

(2) Response
If loopback request is performed normally, the following response will be returned from this product side.
1

2

Address

Function
code

3

4

Diagnostic code

5

6

Diagnostic data

7

8
CRC

The same data sent by the master in (1) is returned as the diagnosis code and diagnostic data.

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Revision A,

DATE：December 2, 202017