UPS protocol

Hardware requirement 硬件要求

BAUD RATE . . . .. . . . . . . . : 2400 bps

DATA LENGTH   . . . . . . . . . : 8bits

STOP BIT . . . . .. . . . . . . . . : 1 bits

PARITY . . . . . . . . . . . . . . . . . : NONE

1       Query Command Q1

Computer: Q1<cr>

UPS: UPS status datastream ,such as MMM.MNNN.NPPP.PQQQRR.RS.SSTT.TU<cr>

UPS status datastream :

(a) Start byte : (

(b) I/P voltage :MMM.M

M is an integernumber ranging from 0 to 9.

The unit is Volt.

(c) I/P faultvoltage : NNN.N

N is an integernumber ranging from 0 to 9.

The unit is Volt.

** For ON LINE UPS**

Its purpose is toidentify a short duration utility fail which cause ON line UPS to go toBatterymode. If this occurs input voltage will appear normal at query prior to failand will stillappear normal at next query. The I/P fault voltage will holdutility fail voltage till next query.After query, the I/P voltage will be sameas I/P voltage until next utility fail occurs.

(d) O/P voltage : PPP.P

P is an integernumber ranging from 0 to 9.

The unit is Volt.

(e) O/P load : QQQ

For Off-line UPS:

QQQ is a percent ofmaximum VA, not an absolute value.

For On-line UPS:

QQQ is maximum of W%or VA%. VA% is a percent of maximum VA.

W% is a percent ofmaximum real power.

(f)I/P frequency : RR.R

Ris an integer number ranging from 0 to 9.

Theunit is HZ.

(g)Battery voltage: SS.S or S.SS

Sis an integer number ranging from 0 to 9.For on-lineunits battery voltage/cell is provided in the form S.SS .For standby unitsactualbatteryvoltage is provided in the form SS.S .UPS type in UPS status will determinewhichreading was obtained.

(h) Temperature :TT.T

T is an integernumber ranging from 0 to 9.

The unit is degreeof centigrade.

(i) UPS Status :<U>

<U> is onebyte of binary information such as

<b7b6b5b4b3b2b1b0>.

Where <bn> isa binary number "0" or "1".

UPS status :

Remarks

Bit7   1 : Utility Fail ( Immediate )

6     1 : Battery Low

5     1 : Bypass/Boost Active

4     1 : UPS Failed

3     1 : UPS Type is Standby (0 is On-line)

2     1 : Test in Progress

1     1 : Shutdown Active

0     Reserved (always 0)

(j) Stop Byte:<cr>

2       Query Command Q4

Computer: Q4<cr>

UPS: UPS status datastream ,such as HHH.H   LLL.L NNN.N PPP.P QQQQQQ RR.R   KKK VVV SS.S   TT.T <cr>

UPS status datastream :

(a) Start byte : (

(b) Input maximum voltage: HHH.H

(c) Input minimumvoltage: LLL.L

(d) input faultvoltage: NNN.N

(e) Output voltage:PPP.P

(f) Output currentpecentage : QQQ

(g) LoadpercentQQQ   

(h) Input frequency:RR.R       

    Positive BUS volt KKK

    Negative BUS voltage: VVV

    Battery voltage SS.S

    Temperature TT.T    (90' --> 860)   

    Utility fail A

    Battery low B

    Bypass/Boost Active     C

    UPS Failed              D

    Test in progress   E

    Shutdown Active   F

    Site Fault G

    EPROM fail   H

    Test passed - Result :OK   I

    Test passed - Result :Failed   J

    Test not Possible or Inhibited K

    Test Status Unknown L

    UPS normal mode   M

    UPS 110% overload   N

3       SET UPS inout

Computer : VS?<cr>

UPS: (220      note: return the set voltage.

Computer : V220<cr>

UPS: ACK      note: Setting in bypass mode

Computer : V230<cr>

UPS: ACK      note: Setting in bypass mode

Computer : V240<cr>

UPS: ACK      note: Setting in bypass mode

Computer : V200<cr>

UPS: ACK      note: Setting in bypass mode

Computer : V208<cr>

UPS: ACK      note: Setting in bypass mode

4       Frequency setting.

In bypass modesetting, a

FS？     query   50/ 60/00

FS50    setting 50Hz

FS60    setting 60Hz

FS00    setting Atuo

5       Output Powerfactor

SG?   

SG07   0.7PF

SG08   0.8PF

SG10   1.0PF

6       Line Input Frequeny Set.

In bypass modesetting, a

SL？     Check line freq range

SLMM.M NN.N   MM.M   lowfreq point   NN.N high freq point

7       关机命令 :

Computer : S<n><cr>

UPS: Shut UPS output off in <n> minutes.

(a) The UPS output will be off in <n> minutes, evenif the utility ispresent.

(b) But if the battery under occur before <n>minutes, the output is turned off

immediately.(c) After UPS shut down, the controller of UPSmonitors the utility. If

the utility is there, the UPS

will waiting for 10 seconds and connect the utility tooutput.

(d) <n> is a number ranging from.2,.3,...,01,02,.., to 10.

For example : S.3<cr> --- shut output off in (.3) minutes

8       旁路设置命令 :

Computer : BO0<n><cr> cancel bypass

UPS: ACK

Computer : BO1<n><cr> enable bypass

UPS: ACK