Datasheet

RCP s e ri e s
6. AnalogFunction(ReadOnly)
7.EEPROMFunction(ReadOnly)
6.1 AnalogfunctionareprovidedbyasinglePCF85914-channel8-bit A/Dconverter.WhenthisdeviceisreadbytheICbuscontroller,itprovidesan8-bit
6.2 A/Dscaling
TheEEPROMisa2048bit(256byte)devicewhichispreprogrammedatthefactorywiththefollowingdata:
wordwiththefollowinginformation:
Thevoltagereadingismadeinsidethepowersupplyunitbeforethe"Oringdiode"andistypically0.5Vhigherthantheactualoutputvoltage.
Thefollowingtableforthescalingshouldbeemployed:
VALUE=BYTEVALUExRESOLUTION
PCF8591slaveaddress
PCF8591controlbyte
2
3
4
Bit
Bit
OutputVoltage
Address
12V
4
12V
56
12V
104
24V
20
24V
72
24V
254
48V
40
48V
88
48V
Range
Bytes
0~16V
16
16
16
16
16
16
0~33V
20
0~65V
0~80A
0~55A
0~30A
0~100
0~100
2
0~100
Scaling
Data
0.0625V/Bit
Manufacturer
SerialNumber
Revision
Countryofproduction
ModelName
OutputVoltage
Dateofproduction
CheckSum
0.129V/Bit
0.254V/Bit
0.312A/Bit
0.215A/Bit
0.117A/Bit
0.391 /Bit
0.391 /Bit
0.391 /Bit
Tolerance
5%
A/DChannel1
A/DChannel2
A/DChannel3
Voltage
Current
Temperature
+3%,-5%
+2%,-5%
10%
10%
10%
3
3
3
Value
Value
2
1
A/DChannel FUNCTION
OutputVoltage
OutputCurrent
Internal Temperature
NotUsed
7
7
1
0
6 5
6 5
0 0
0 0
4
4
1
0
3
3
A2
0 0
2
2
A1
1
1
A0
0
0
0
0
1
0
1
0
:OutputVoltage
:OutputCurrent
:Internal Temperature
R/W
1000~3000WFrontEndPowerSystem
FileName:RCP series-SPEC2011-12-19
5.2DigitalFunction(ReadOnly)
DigitalfunctionareprovidedbyaPCF85748-bitI/Oportdevice.WhenthisdeviceisreadbytheICbuscontroller,asingle8-bitwordprovidesthe
followinginformation.
BIT FUNCTION GOODSTATE FAIL STATE MEANING
Inputpowerfail
Outputvoltageislessthanspecification
Internaltemperatureisover60 .PSUturnson
Temperatureexceedsnominaloperatinglimit.PSUturnsoff
Failureofaninternalfan
Notused
Notused
Notused
0 1
1
1
1
1
0
0
0
0
------ ------
------ ------
------ ------
0 ACInputFail
1 OutputPowerGood/Fail
2 TemperatureWarning
3 Over TemperatureProtection
4 FanFailWarning
5 NotUsed
NotUsed
NotUsed
6
7
2
EEPROMslaveaddress
Bit 7 6 5 4 3 2 1 0
Value 1 0 1 0 A2 A1 A0 R/W
PCF8574 slaveaddress
Bit 7 6 5 4 3 2 1 0
Value 0 1 0 0 A2 A1 A0 R/W
Read:1
Write:0