# Reading four consecutive Modbus Registers for modulo 10k

**URL:** <https://discourse.nodered.org/t/reading-four-consecutive-modbus-registers-for-modulo-10k/66087>\
**Category:** General\
**Created:** [5 August 2022 17:00 UTC](https://discourse.nodered.org/t/reading-four-consecutive-modbus-registers-for-modulo-10k/66087 "2022-08-05T17:00:31Z")\
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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [5 August 2022 17:13 UTC](https://discourse.nodered.org/t/reading-four-consecutive-modbus-registers-for-modulo-10k/66087/2 "2022-08-05T17:13:50Z")

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> [@Very Large Numbers Modulo 10k](https://discourse.nodered.org/t/very-large-numbers-modulo-10k/66069):
>
> Here is how modulo 10k is described. 64-bit unsigned value returned in four consecutive 16-bit registers, where R4 is the last register and R1 is the first register. Each registers range is 0 to +9,999: R410,000^3 + R310,000^2 + R2\*10,000 + R1 I have created a Modbus function read of four registers to create the math. The resulting numbers appear to be too large for Node-Red to use. What is the work around? Need to do these multiplications and then add the numbers together. Any help?

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