Type:Logic ICs
Condition:New
Model:PD3058-PLC32V
Decoration and construction contents:Installation engineering
OneSummary
This style of 32 way analog input module.It is derived from the 12 module, which is actually the increase in the number of channels.
The relevant technical parameters are the same. Standard SixteenbitADchip.
The sampling GND is completely isolated from the three terminals of power supply and communication.
Common specifications are as follows:The divider resistor has been integrated inside the module.
| Range specification | application area | Divider resistance ratio ADFullness | Actual measurement range |
| 5V | 5VInternal voltage measurement | 82K:3.24K 256MV | -3VLeft and right+5.8V |
| 10V | 10VInternal voltage measurement | 150K:3.24K 256mV | -7VLeft and right+12V |
| 30V | 30VInternal voltage measurement | 390K:3.24K 256mV | -20VLeft and right+31V |
| 60V | 60VInternal voltage measurement | 787K:3.24K 256mV | -40VLeft and right+62V |
| 160V | 120VInternal voltage measurement | 2.2M:3.24K 256mV | -110V reach +173 |
| 260V | 12VBattery18Series voltage216VThe highest260V | 3.3M:3.24K 256mV | -120V reach +260V |
| 500V | 12VBattery24Series voltage288VThe highest350V | 3.3M:3.24K 512mV | -240V reach +521V |
ThreeModule interface
Power Supply(+,-)Power supply8V-30VThe positive and negative poles. The power supply has reverse connection protection.
The two(+)It's linked together, two.(-)They are linked together.
(A,B)meet485AA,B.
GNDVoltage: common terminal, internally connected with (power supply)-)
IN1-IN32Voltage input
The indicator lights are always bright and will flash when communicating.
5 Module application technology
5.1 MODBUSagreed interpretation
Please refer to "V2.4Single-phase three phaseLEDLCDThe general instruction of instrumentMODBUSThe introduction.
We can use the test tools provided by us to view the collected data. The following figure.
Test access-12Vand+12V.
A higher resolution can be obtained by selecting the appropriate decimal number according to different ranges.. The following chart is for fuel cells.32road2VModule of range.
The test voltage of the user is-0.5V-+2Between V, precision error is required.2mVWithin.
So choose4The decimal number is very accurate and the error can be controlled.0.2mVWithin.
Voltage detection scheme for series battery
Because there is such a problem in series sampling, for example,IN1=1.000VIN2=2.123VIN3=2.987VIn fact,
Battery voltage is: battery.1=1.000VBattery2=2.123-1.000=1.123VBattery3=2.987-2.123=0.865V.
Users can subtract the collected data themselves to get effective data, which is a bit troublesome, so we provide a set of difference registers.
Specially complete this subtraction operation.
For example, a series battery is the following channel register.60HStart data selection3A decimal number.
To get the voltage of each battery, read the difference register.80HStart data selection3A decimal number.
Modscan32test Symbolic integer register
Modbuss pooltest Symbolic integer register
| Word address | describe | Word address | describe |
| 80H | The first1Road input value | 90H | (17road-The first16Input value) |
| 81H | (2road-The first1Input value) | 91H | Principle same |
| 82H | (3road-The first2Input value) | 92H | Principle same |
| 83H | Principle same | 93H | Principle same |
| 84H | Principle same | 94H | Principle same |
| 85H | Principle same | 95H | Principle same |
| 86H | Principle same | 96H | Principle same |
| 87H | Principle same | 97H | Principle same |
| 88H | Principle same | 98H | Principle same |
| 89H | Principle same | 99H | Principle same |
| 8AH | Principle same | 9AH | Principle same |
| 8BH | Principle same | 9BH | Principle same |
| 8CH | Principle same | 9CH | Principle same |
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