1、-10—10V。 When the voltage of -10V-10V is converted to F448-0BB8Hex (-3000-3000) at 6000 resolution; At 12000 resolution, it is converted to E890—1770Hex (-6000—6000).
2、0—10V。 At a voltage of 0-10V, it is converted to 0-1770Hex (0-6000) at a resolution of 12000; 12000 resolution is converted to 0-2EE0Hex (0-12000).
3、0—20mA。 At 0-20mA, it is converted to 0-1770Hex (0-6000) at 6000 resolution; 12000 resolution is converted to 0-2EE0Hex (0-12000).
4、4—20mA。 At a current of 4-20mA, it is converted to 0-1770Hex (0-6000) at 6000 resolution; 12000 resolution is converted to 0-2EE0Hex (0-12000).
The above is just a brief introduction, different PLCs have different resolutions, and the range achieved by the physical quantities you measure is different. There may be some differences in the calculation results.
Note: Wiring requirements for analog inputs
1. Use shielded twisted pairs, but do not connect the shield.
2. When an input is not in use, short the V IN and COM terminals.
3. Isolation of analog signal line from power line (AC power line, high voltage line, etc.).
4. When there is interference on the power line, install a shock absorber between the input part and the power supply unit.
5. After confirming the correct wiring, power on the CPU unit first, and then power on the load.
6. When the power is off, cut off the power supply of the load first, and then cut off the power supply of the CPU.
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