Condition:New
Type:Logic ICs
Model:PD3041-4AI4AO
No.:1
Color classification:4-20mA input 0-10V output
Decoration and construction content:Hydropower project
As long as the output, please note that 4-20mA input 0-10V output, of the 20mA+4 4 into the 10V out of the 30V+4 4 into the 20mA out of the 30V+4 other specifications, please note that 4 into the 20mA out of the 20mA+4 4 into the 10V+4 out of 10V
This style 4 road analog quantity input +4 analog output module,
Is derived from the independent function of the module, and related technical parameters of the same, can refer to.
If you do not need a combination function, you can split the sale.
For example, users only need4AOThis is the model.PD3041-4AOMask label"4AO"Will be lit by black spots.
1 PD3041Main characteristics
quarantineRS485InterfaceModbus-RTU Agreement.
Power supply: DC8-30V
Analog sampling precision:16Or18positionAD.
Analog output accuracy: 4 independent 12 or 14 bit DA.
Current output type:0-20MA (MAX 21mA), the output voltage is the same as the supply voltage, and the load resistance is not more than910Europe.
Voltage output type:0-5V,0-10V, the output current is not more than 5MA (finite flow short circuit protection)
2 product picture
The interface is as follows:
A:RS485 Serial communicationA
B:RS485 Serial communicationB
Power SupplyV+DC power supply cathode
Power SupplyGNDDC power supply negative pole, common end
AIN (x)Analog input terminal
AOUT (x):Analog output
3 Register information table and function code
3.1 Function code03H(read),06H(write)
Parameter setting register information table 10H-15HPermanent preservation;16H-19HPower down is lost when the power is on.0.
Word address | byte position | describe | Parameter description | attribute |
10H | low8position | Communication configuration Initial value:00 | BIT<7> Parameter protection function= 0Close = 1open See note BIT<6:5> Retain BIT<4:3>00=No verification01=Parity check10=Odd parity check (11=Odd parity check BIT<2:0>001=1200 010=2400 011=4800 100=9600 000=9600 110=19200 101=14400Other combinations are not defined, in accordance with9600Handle | RW |
high8position | Postal address Initial value:01 | Set value range=1reachTwo hundred and fifty address0For a broadcast address (if the communication program is set to the value of the0, equivalent to1) | RW |
11H | | Retain | | RW |
12H | low8position | No.1Road analog output control mode Initial value:00 | See note II | RW |
high8position | Retain | RW |
13H | | No.2Road analog output control mode | RW |
14H | | No.3Road analog output control mode | RW |
15H | | No.4Road analog output control mode | RW |
16H | | No.1Road analog output value | Voltage or current output value,2Byte unsigned integer, numeric unit is:UA,MV. When the module is powered on, the value is0. Therefore, the power must be written before the output value will have output. | RW |
17H | | No.2Road analog output value | RW |
18H | | No.3Road analog output value | RW |
19H | | No.4Road analog output value | RW |
Comment ii:
0,4-255Mode0, there is no corresponding relationship between analog input and analog output. The analog output value can be set up by the host computer through the communication.
1Follow mode1,The analog output value of this mode can not be set up by the host computer through the communication. Output value is1:1Follow the input values change.
Note that if the input and output types are different, for example, the input is0-20mA, the output is0-10V, then enter10mAWill cause the output value to be10V, input and then improve the output will not change.
2Follow mode2The analog output value of this mode can not be set up by the host computer.
Set output=y, input=x, this mode is in accordance withY= (8 * x) /5 + 4, conversion.
The purpose is toX=0reach10convert toY=4reach20.
3Follow mode3The analog output value of this mode can not be set up by the host computer.
Set output=y, input=x, this mode is in accordance withY= (5 * x) /8 - 2.5, conversion.
The purpose is toX=4reach20convert toY=0reach10.
3.3 Function code10H(write continuous register)
16H-19HRegister supportMODBUSThe10HCommand. The significance of this function lies in:
Use06HCommand setting4An output, it should be written separately4Time, and use10HCommand can be written at once4One output.
3.2 Function code03H(read)
Data register information table
This part of the address and data format and the "analog acquisition module" the same, so you can use the "analog acquisition program" test.
Word address | describe | Parameter description | attribute |
20H | No.1Analog input value | Value as32positionFloatType, standardIEEE-754Floating point format. Numerical unit for:mA,V. | R |
22H | No.2Analog input value | R |
24H | No.3Analog input value | R |
26H | No.4Analog input value | R |
28H-3EH | Retention, read value as0 | | R |
40H | No.1Digital output code | Value as32Bit unsigned long integer(signed int long). | R |
42H | No.2Digital output code | R |
44H | No.3Digital output code | R |
46H | No.4Digital output code | R |
48H-5EH | Retention, read value as0 | | R |
60H | No.1Analog input value | Value for symbolic integer,-32768 - 32767Unit for:UA,MV. For example:25432Express25432 (uA,MV)Amount to25.432 (mA,V) | R |
|
