Modbus Ascii - VETEC P1001 Series Manual

Select protocol P2, using the previous page.
The displayed value is available as a 32 bit 2's compliment signed integer in registers
0x0000 and 0x0001
Register 0x0000 Display value low word
Register 0x0001 Display value high word
The decimal point position is available in the low byte of register 0x001E.
The high byte is not currently used, but should be masked off to guarantee compatibility with
future firmware releases.
Some examples:-
If meter shows 9
If meter shows 9.9
If meter shows 9.99
If meter shows 9.999
Display value reads 9
Display value reads 99
Display value reads 999
Display value reads 9999 Decimal position reads 3

Modbus ASCII

Decimal position reads 0
Decimal position reads 1
Decimal position reads 2
9