Metronic FP4, Руководство по эксплуатации

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FP4, FP4W
62
15 MODBUS RTU / MODBUS TCP TRANSMISSION PROTOCOL

15.1 General information
Process values and totalizers are available as holding registers and input registers . It
is only possible to read the data.
15.1.1 Data types
uint/int
16bit
Reg
(Bit 15…0)
HByte LByte
2. 1.
uint/int/float
32bit
Reg_L (Bit 15…0) Reg_H (Bit 31…16)
HByte LByte HByte LByte
2. 1. 4. 3.
uint/int/float
32bit sw
Reg_H (Bit 31…16) Reg_L (Bit 15…0)
HByte LByte HByte LByte
4. 3. 2. 1.
int/double
64bit
Reg_L (Bit 15…0) Reg_H (Bit 31…16) Reg_L (Bit 47…32) Reg_H (Bit 63…48)
HByte LByte HByte LByte HByte LByte HByte LByte
2. 1. 4. 3. 6. 5. 8. 7.
15.2 Registers addresses
Process values are available in the floating-point format as per IEEE-754 for the 32-bit
digit type with the floating point and single precision (32-bit floating point single).
The totalizers are available in the floating-point format as per IEEE-754 for the 64-bit
digit type with the floating point and double precision (64-bit floating point double) or in
int 64bit format.
Timers are available in uint 32bit format.
Addresses table of Process values
No. measuring
channel
Register number Modbus address
Size
(in registers)
1 300000 / 400000 00 2 (32bit float)
2 300002 / 400002 02 2 (32bit float)
3 300004 / 400004 04 2 (32bit float)
4 300006 / 400006 06 2 (32bit float)
5 300008 / 400008 08 2 (32bit float)
6 300010 / 400010 10 2 (32bit float)