PACE RS232 User Manual

1

PACE RS232 Communication Protocal

（PACE-RS232-TY16S）

2018-07-05

2

Change Record

2018-07-05

Initial finalization

wang

3

1、Physical interface and Communication mode

1.1 Physical interface

The serial communication mode is adopted for Physical Interface,which is adopted by standard RS232
communication mode.It provides a information transmission methods by Asynchronous mode,a start bit,a stop
bit,no check bit .The data transmission rate is 9600.

1.2 Communication mode

The Communication mode adopts the Master-Slave response mode.when the PC software or monitoring
equipment initiates communication command as the host,the BMS responds the return command as the slave.if
the host don’t receive the response caomand or error information in 500 ms when the host has sent the
command.in this case,this communication will be failed.

2、Protocal format

2.1 Frame format

Char A.1 Frame format

Ordinal

1 2 3 4 5 6 7 8 9

Bytes

1 1 1 1 1 2 LENID/2

2 1 Format

SOI

VER

ADR

CID1

CID2

LENGTH

INFO

CHKSUM

EOI

2.2 basic format explanation

Char A.2 Basic format

Ordinal

Symbol

meaning

Remarks

1

SOI

START OF INFORMATION

（7EH）

2

VER

Protocal version（V2.5）

（25H）

3

ADR

Device address（0－15）

4

CID1

Device indication code（device type description）

5

CID2

Command information：control indication code（data or action
description）

Response information：return code RTN

6

LENGTH

INFO length of bytes（including LENID and LCHKSUM）

7

INFO

Command information：control data infaomation (COMMAND_INFO)

Response information：response data information(DATA_INFO)

8

CHKSUM

Check sum

9

EOI

END OF INFORMATION

CR（0DH）

Remark：VER-means communication veision，usually uses V2.5，as 25H.

ADR-means battery pack address,BMS uses four-digit toggle switch to set the address，the address range

is 0~15.

2.3 Data format

2.3.1 Basic data format

4

Beyond that the SOI and EOI is transmitted by 16-hex format,other items is transmitted by 16-hex ascii
format.every byte uses two ascii,for example,when the CID2 = 4HH,the 34H and 42H will be transmitted in
two bytes.

2.3.2 LENGTH data format

Char A.3 LENGTH data format

High byte

Low byte

Check sum code LCHKSUM

LENID（means the information’s ascii bytes）

D15

D14

D13

D12

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

2.3.3 LEDID

LENID means the ascii byte number of INFO,when LENID = 0,that means INFO is not.all data bytes is not
uppt to 4096.

High byte is sent at first and low byte is sent at second for LENGTH information with four ASCII code.

2.3.4 LCHKSUM

The calculation method of check code：D11D10D9D8+D7D6D5D4+D3D2D1D0

After sum, module 16 takes inverse plus 1

For example：

INFO:中 ASCII code number is 18，that’s LENID＝0000 0001 0010B。

D11D10D9D8+D7D6D5D4+D3D2D1D0＝0000B＋0001B＋0010B＝0011B，module 16 is 0011B，0011B takes inverse plus
1 is 1101B，so LCHKSUM is 1101B。

so：LENGTH is 1101 0000 0001 0010B，that’s D012H。

2.4 CHKSUM data faomat

All char ascii code is calculated for sum without SOI,EOI and CHKSUM，the result module 65536 takes
inverse plus 1。

For example：

When send or receive the data sequence：

“~1203400356ABCEFEFC72\R”（“~”is SOI，“CR” is EOI），

So the last five char “FC72\R”FC72 is CHKSUM，

Calculation method：

‘1’＋ ‘2’＋ ‘0’＋ …＋‘F’＋ ‘E’＝31H＋32H＋30H＋…＋46H＋45H＝038EH

038EH module 65536 is 038EH，038EH take inverse plus 1 is FC72H。

2.5 DATA_INFO data faomat

This protocal use the fixed point data type to send information.

1）int format（INTEGER，2byte）

Signed int －32768－＋32767

Unsigned int 0－＋65535

High byte is send first,and the low byte is send second。

5

2） unsigned char（CHAR，1byte，0－255）

Char A.4 Fixed point data type

Ordinal

Telemetry content

Data type

Transmission unit

1

Battery cell voltage

Unsigned int
mV

2

temperature

Unsigned int

0.1K

25.5℃ = 25.5 * 10 + 2730 = 2985（0.1K）

-12.4℃ = -12.4 * 10 + 2730 = 2606（0.1K）

3

Total battery voltage

Unsigned int
mV

4

Charge or discharge

currnet

Signed int

10mA（the charge current is positive,the discharge
current is negative）

5

Battery pack capacity

Unsigned int

10mAH （ include the remain capacity,the
fullcapacity and designed capaticy）

2.6 data time

DATA_TIME and COMMAND_TIME format can see as the chart：

Char A.5 Data time format

items

range

Data type

remark

year

（0－99）

CHAR

（one byte,decimal-format）

month

（1－12）

CHAR

（one byte,decimal-format）

data

（1－31）

CHAR

（one byte,decimal-format）

hour

（0－23）

CHAR

（one byte,decimal-format）

minute

（0－59）

CHAR

（one byte,decimal-format）

second

（0－59）

CHAR

（one byte,decimal-format）

Remark:the year is transmitted by char-format，real value = data + 2000。The range is 2000-2099。

3、code allocation

3.1 equipment type code allocation table（CID1）

Char A.6 CID1 table

item

content

CID1

remark

1

Iron lithium battery

46H

（ suitable for
ternary lithium）

3.2 command information cade allocation chart（CID2）

Char A.7 CID2 table

item

content

CID2

remark

1

Pack number

90H

6

2

Pack analog information

42H 3

Pack warn information

44H 4

Control command

99H 5

Software veision

C1H

define

6

Product information

C2H

define

7

Charge MOSFET control

9AH

define

8

Discharge MOSFET control

9BH

define

9

Getting BMS data time

B1H

define

10

Setting BMS data time

B2H

define

11

Pack capaticy information

A6H

define

Char A.8 CID2 response information（RTN）

item

symbol

RTN

remark

1

normal

00H 2

undefine

01H 3

CHKSUM error

02H 4

LCHKSUM error

03H 5

CID2 undefine

04H 6

Undefined

05H 7

Undefined

06H 8

Operation or write error

09H

define

4、command explanation

4.1 getting pack number

Char A.9 Getting pack number information

Item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

90H

LENGTH

CHKSUM

EOI

Remark ：LENID = 00H。

For example,if the bms address is not equal to 1,the pack number responses the address as 1.if the bms
address is equal to 1,as the master-slave mode,pack number is up to practice.

Char A.10 Response information

item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2

1

7

Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：LENID = 02H，DATAINFO is the pack number information。

4.2 getting pack analog information

Char A.11 Command information

Item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2

1

Format

SOI

VER

ADR

46H

42H

LENGTH

CHKSUM

EOI

Remark ：LENID = 02H。

INFO has one byte，as COMMAND：

COMMAND = FFH，getting all pack analog information。

COMMAND = 01H，getting 1’s pack analog information who’s address is one。

……

COMMAND = 0FH，getting 15’s pack analog information

Char A.12 Response information

Item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

INFOFLAG is 00H or 01H

Char A.13 DATAI data transmit order

item

content

DATAI bytes

Remark

1

* PACK number M / COMMAND value

1 2

PACK 1 battery data

See as chart A.14

3

……

……

M + 1

PACK M battery data

See as chart A.14

 When the command is FFH,the response information is pack number.otherwise ,the response information

is command value.

Char A.14 Analog content and transmit order

item

content

DATAI bytes

Remark

1

Cell number M

1 2

Cell voltage 1

2 3

Cell voltage 2

2 4

……

……

8

M + 1

Cell voltage M

2 M + 2

Temperature’s number N

1

M + 3

Temperature 1

2

M + 4

Temperature 2

2 M + 5

……

……

M + N + 2

Temperature N

2

M + N + 3

PACK current

2

the charge current is

positive,the
discharge current
is negative
(uint:10mA)

M + N + 4

PACK total voltage

2 M + N + 5

PACK remain capacity

2

uint：10mAH

M + N + 6

Define number P = 3

1 M + N + 7

PACK full capacity

2

uint：10mAH

M + N + 8

Cycle number

2 M + N + 9

PACK design capacity

2

uint：10mAH

4.3 getting warn information

Char A.15 Getting pack warn command information

Item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

44H

LENGTH

CHKSUM

EOI

Remark ：LENID = 02H。

INFO has one byte，as COMMAND：

COMMAND = FFH，getting all PACK warn information。

COMMAND = 01H，getting PACK1 warn information。

……

COMMAND = 0FH，getting PACK15 warn information。

Remark :as the master-slave mode,you can get more pack data information by the RS232 who’s address must
be 1.otherwise,you can only get one pack information.the command can be 01H or FFH.

Char A.16 Getting pack warn command response information

Item

1

2

3

4

5

6

7

8 9 bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：DATAINFO is consist of INFOFLAG and WARNSTATE，WARNSTATE can see at chart A.17。

9

INFOFLAG can be 00H or 01H。

Char A.17 Response DATAI data transmittion order

item

content

DATAI bytes

Remark

1

* PACKnumber M / COMMAND value

1 2

PACK 1warn information

See at chart A.18

3

……

……

M + 1

PACK Mwarn information

See at chart A.18

* when the command if FFH,the response information is pack number.otherwise that is command value.

Char A.18 One pack warn information and transmittion order

item

content

DATAI bytes

Remark

1

Cell number M

1 2

Cell voltage 1 warn

1 3

Cell voltage 2 warn

1 4

……

……

M + 1

Cell voltage M warn

1 M + 2

Temperature number N

1 M + 3

Temperature 1 warn

1 M + 4

Temperature 2 warn

1 M + 5

……

……

M + N + 2

Temperature N warn

1

M + N + 3

PACK charge current warn

1 M + N + 4

PACK total voltage warn

1 M + N + 5

PACK discharge current warn

1 M + N + 6

Protect state 1

1

See at chart A.19

M + N + 7

Protect state 2

1

See at chart A.20

M + N + 8

Instructions state

1

See at chart A.21

M + N + 9

Control state

1

See at chart A.22

M + N + 10

Fault state

1

See at chart A.23

M + N + 11

Balance state1

1

Balance state for 1-8

M + N + 12

Balance state2

1

Balance state for 9-16

M + N + 13

Warn state1

1

See at chart A.24

M + N + 14

Warn state2

1

See at chart A.25

description：

10

—— 00H：normal；

—— 01H：below lower limit；

—— 02H：above upper limit；

—— 80H～EFH：user define ；

—— F0H：other fault。

Char A.19 Protect state1 explanation

BIT

content

Remark

7

undefine
6

Short circuit

1：Short circuit protect 0：normal
5

Discharge current protect

1：Discharge current protect 0：normal
4

charge current protect

1：charge current protect 0：normal
3

Lower total voltage protect

1：Lower total voltage protect 0：normal
2

Above total voltage protect

1：Above total voltage protect 0：normal
1

Lower cell voltage protect

1：Above total voltage protect 0：normal
0

Above cell voltage protect

1：Above cell voltage protect 0：normal

Char A.20 Protect state 2 explanation

BIT

content

Remark

7

Fully

1：Fully 0：normal

6

Lower Env temperature protect

1：Lower Env temperature protect 0：

normal

5

above Env temperature protect

1：above Env temperature protect 0：

normal

4

Above MOS temperature protect

1：Above MOS temperature protect 0：

normal

3

Lower discharge temperature protect

1：Lower discharge temperature protect

0：normal

2

Lower charge temperature protect

1：Lower charge temperature protect 0：

normal

1

above discharge temperature protect

1：above discharge temperature protect

0：normal

0

above charge temperature protect

1：above charge temperature protect 0：

normal

Char A.21 Instructions state explanation

BIT

content

remark

11

7

Heart indicate

1：ON 0：OFF
6

undefine
5

ACin

1：ON 0：normal
4

Reverse indicate

1：ON 0：normal
3

Pack indicate

1：Pack indicate 0：unuse
2

DFET indicate

1：ON 0：OFF
1

* CFET indicate

1：ON 0：OFF
0

Current limit indicate

1：ON 0：OFF

Char A.22 Control state explanation

BIT

Content

Remark

7

Undefined
6

Undefined
5

LED warn functiuon

1：unenable 0：enable
4

Current limit function

1：unenable 0：enable
3

Current limit gear

1：low gear 0：high gear
2

undefine

1 undefine
0

Buzzer warn function

1：enable 0：unenable

Char A.23 Fault state explanation

BIT

content

remark

7

undefine
6

undefine
5

Sample fault

1：fault 0：normal
4

Cell fault

1：fault 0：normal
3

Undefined

2 NTC fault（NTC）

1：fault 0：normal
1

Discharge MOS fault

1：fault 0：normal
0

Charge MOS fault

1：fault 0：normal

Char A.24 Warn state1 explanation

BIT

Content

Remark

7

undefine
6

undefine

12

5

Discharge current warn

1：warn 0：normal
4

charge current warn

1：warn 0：normal
3

Lower tatal voltage warn

1：warn 0：normal
2

above tatal voltage warn

1：warn 0：normal
1

Lower cell voltage warn

1：warn 0：normal
0

above cell voltage warn

1：warn 0：normal

Char A.25 Warn state2 explanation

BIT

Content

Remark

7

Low power warn

1：warn 0：normal
6

High MOS temperature warn

1：warn 0：normal
5

low env temperature warn

1：warn 0：normal
4

high env temperature warn

1：warn 0：normal
3

low discharge temperature warn

1：warn 0：normal
2

low charge temperature warn）

1：warn 0：normal
1

above discharge temperature warn

1：warn 0：normal
0

above charge temperature warn

1：warn 0：normal

4.4 control command

Char A.26 control command information

Item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

99H

LENGTH

CHKSUM

EOI

Remark ：LENID = 02H。

INFO has one byte，as COMMAND：

COMMAND = 06H，enable LED warn function

COMMAND = 07H，unenable LED warn function

COMMAND = 08H，choose high gear

COMMAND = 09H，choose low gear

COMMAND = 0AH，enable current limit function

COMMAND = 0BH，unenable current limit function

COMMAND = 0CH，unenable buzzer warn function

COMMAND = 0DH，enable buzzer warn function

Char A.27response control command information

13

Item

1

2

3

4

5

6

7

8 9 bytes

1

1

1

1

1

2

LENID/2

2

1

Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：LENID = 04H。

4.5 software version information

Char A.28 getting software version information command

Item

1

2

3

4

5

6

7

8

9

Bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

C1H

LENGTH

CHKSUM

EOI

Remark ：LENID = 00H。

Char A.29 response information for version command

Item

1

2

3

4

5

6

7

8 9 bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：LENID = 28H。

DATAINFO is consist of software version，includes of 20 char，if not 20 char, you can set space。

4.6 getting product information

Char A.30 getting product information command

Item

1

2

3

4

5

6

7

8 9 bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

C2H

LENGTH

CHKSUM

EOI

Remark ：LENID = 00H。

Char A.31 response for product information command

Item

1

2

3

4

5

6

7

8 9 bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：LENID = 50H or 28H。

4.7 charge MOSFET control

Char A.32 charge MOSFET command information

Item

1

2

3

4

5

6

7

8

9

bytes

1

1

1

1

1

2

LENID/2

2

1

Format

SOI

VER

ADR

46H

9AH

LENGTH

CHKSUM

EOI

14

Remark ：LENID = 02H。

INFO has one byte ，as COMMAND：

COMMAND = 00H，open charge MOSFET。

COMMAND = 01H，close discharge MOSFET。

Remark :if discharge MOSFET is closed,the charge MOSFET can’t be closed

Char A.33 response for charge MOSFET control command

Item

1

2

3

4

5

6

7

8 9 bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：LENID = 02H。

If RTN is 00H，that means operation is success,otherwise failed

4.8 discharge MOSFET control

Char A.34 discharge MOSFET command information

Item

1

2

3

4

5

6

7

8 9 bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

9BH

LENGTH

CHKSUM

EOI

Remark ：LENID = 02H。

INFO has one byte ，as COMMAND：

COMMAND = 00H，open discharge MOSFET。

COMMAND = 01H，close discharge MOSFET。

If charge MOSFET is closed,you can’t operate the discharge MOSFE

Char A.35 response for discharge MOSFET control command

Item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2 1 format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：LENID = 02H。

If RTN is 00H，that means operation is success,otherwise failed

4.9 getting BMS time and date

Char A.36 getting BMS time and date command information

Item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

B1H

LENGTH

CHKSUM

EOI

Remark：LENID = 00H。

15

Char A.37 response information for getting BMS time and date

Item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：LENID = 0CH。

DATAINFO has six bytes，that is time and date information，see at chartA.38。

Char A.38 DATAINFO content and transmission sequence

Item

content

DATAI bytes

Remark

1

Year

1

value＝transmist date
+ 2000

2

Month

1 3

Date

1 4

Hour

1 5

Minute

1 6

Second

1

4.10 setting BMS date and time

Char A.39 Setting BMS date and time command information

Item

1

2

3

4

5

6

7

8 9 Bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

B2H

LENGTH

CHKSUM

EOI

Remark ：LENID = 0CH，

DATAINFO has six bytes，that is time and date information，see at chartA.40。

Char A.40 Date and time INFO content and transmission sequence

Item

Content

DATAI bytes

Remark

1

Year

1

value＝transmist date

- 2000

2

Month

1 3

Date

1 4

Hour

1 5

Minute

1 6

Second

1

Char A.41 Response information for setting BMS date and time information

Item

1

2

3

4

5

6

7

8

9

16

bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：LENID = 00H。

4.11 getting pack capacity

Char A.42 Getting pack capacity command information

Item

1

2

3

4

5

6

7

8

9

bytes

1

1

1

1

1

2

LENID/2

2

1

Format

SOI

VER

ADR

46H

A6H

LENGTH

CHKSUM

EOI

Remark ：LENID = 00H。

Char A.43 Response for getting pack capacity command information

Item

1

2

3

4

5

6

7

8 9 bytes

1

1

1

1

1

2

LENID/2

2 1 Format

SOI

VER

ADR

46H

RTN

LENGTH

DATAINFO

CHKSUM

EOI

Remark ：LENID = 0CH。

DATAINFO has six bytes，that is time and date information，see at chartA.44。

Char A.44 Capacity INFO content and transmission sequence

Item

Content

DATAI bytes

Remark

1

PACK remain capacity

2

unit：10mAH

2

PACK full capacity

2

unit：10mAH

3

PACK design capacity

2

unit：10mAH

5、example

When we use this communication mode,the address is not limited.the BMS response information can be the
BMS address.besides CID2 code is 42H and 44H,other CID code is used for only one BMS pack.for example:

Getting pack analog information：

7E 32 35 30 30 34 36 34 32 45 30 30 32 30 31 46 44 33 31 0D （COMMAND = 01H）

7E 32 35 30 30 34 36 34 32 45 30 30 32 46 46 46 44 30 36 0D （COMMAND = FFH）

Getting pack warn information：

7E 32 35 30 30 34 36 34 34 45 30 30 32 30 31 46 44 32 46 0D （COMMAND = 01H）

7E 32 35 30 30 34 36 34 34 45 30 30 32 46 46 46 44 30 34 0D （COMMAND = FFH）

Response command information explanation：

Command information：7E 32 35 30 30 34 36 34 32 45 30 30 32 46 46 46 44 30 36 0D

Response information：
7E 32 35 30 30 34 36 30 30 46 30 37 41 30 30 30 31 31 30 30 44 34 32 30 44 31 34 30 44 31 33 30 44 31

33 30 44 31 33 30 44 31 33 30 44 31 33 30 44 31 33 30 44 31 31 30 44 31 32 30 44 31 33 30 44 31 31 30

17

44 31 31 30 44 31 32 30 44 31 30 30 44 31 33 30 36 30 42 42 37 30 42 42 37 30 42 42 38 30 42 42 36 30

42 42 33 30 42 42 44 30 30 30 30 44 31 35 35 31 32 38 45 30 33 31 33 38 38 30 30 30 30 31 33 38 38 45

33 41 43 0D

Response information explanation：

7E（SOI）

32 35（VER，that is veision 25H，V2.5）

30 30（ADR，the battery address is 0）

34 36（CID1，46H）

30 30（RTN，00H）

46 30 37 41（LENGTH，F07A，LENID is 07AH，DATAINFO length is 122 ，LCHKSUM is FH）

30 30（INFOFLAG is 00H。other information is DATAI）

30 31（PACK number，01H）

31 30（battery cell number M，is 10H，that has 16 cell）

30 44 34 32（first cell voltage：0D42H，that’s 3394mV）

30 44 31 34（second cell voltage：0D14H，that’s 3348mV）

30 44 31 33（third cell voltage：0D13H，that’s 3347mV）

30 44 31 33（forth cell voltage：0D13H，that’s 3347mV）

30 44 31 33（fifth cell voltage：0D13H，that’s 3347mV）

30 44 31 33（sixth cell voltage：0D13H，that’s 3347mV）

30 44 31 33（seventh cell voltage：0D13H，that’s 3347mV）

30 44 31 33（eighth cell voltage：0D13H，that’s 3347mV）

30 44 31 31（ninth cell voltage ：0D11H，that’s 3345mV）

30 44 31 32（tenth cell voltage：0D12H，that’s 3346mV）

30 44 31 33（eleventh cell voltage：0D13H，that’s 3347mV）

30 44 31 31（twelfth cell voltage：0D11H，that’s 3345mV）

30 44 31 31（thirteenth cell voltage：0D11H，that’s 3345mV）

30 44 31 32（fourteenth cell voltage：0D12H，that’s 3346mV）

30 44 31 30（fifteenth cell voltage：0D10H，that’s 3344mV）

30 44 31 33（sixteenth cell voltage：0D13H，that’s 3347mV）

30 36（temperature number N，06H，has 6 temperatures）

30 42 42 37（first temperature：0BB7H，that’s 2999，26.9℃）

30 42 42 37（second temperature：0BB7H，that’s 2999，26.9℃）

30 42 42 38（third temperature：0BB8H，that’s 3000，27.0℃）

30 42 42 36（forth temperature：0BB6H，that’s 2998，26.8℃）

30 42 42 33（fifth temperature （MOS）： 0BB3H，that’s 2995，26.5℃）

30 42 42 44（sixth temperature（environment）： 0BBDH，that’s 2994，27.5℃）

30 30 30 30（PACK current，0000H，unit:10mA，range：-327.68A-+327.67A）

44 31 35 35（PACK total voltage，D155H , that’s 53.589V）

31 32 38 45（PACK remain capacity，128EH, that’s 47.50AH）

30 33（user define number P，03H）

31 33 38 38（PACK full capacity ，1388H , that’s 50.00AH）

30 30 30 30（cycle times，0000H）

31 33 38 38（PACK design capacity，1388H , that’s 50.00AH）

45 33 41 43（CHKSUM，E3ACH）

18

0D（EOI）

remark
when communication debugging between monitoring equipment and BMS by RS232,we should pay attention to

this situation:

1、 We should know the BMS is working or not,which can be judged by LED.if all LED is closed,we can push

the key at 3-6 seconds to wake up the BMS.

2、 We should confirm that the monitoring equipment’s baud is suitable with datasheet.

3、 When we analysis the data,please pay attention to the data’s type.