Nortech EasyGrid V1, Руководство пользователя

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EasyGrid User Guide
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10.2.2 Supported Functions
Data Type
Function Code
(decimal)
Access Description
Read Coils 1 Read Only Read one or more Coil Input(s)
Read Discrete Inputs 2 Read Only Read one or more Discrete Input(s)
Read Holding Registers 3 Read Only Read one or more Holding Register(s)
Read Input Registers 4 Read Only Read one or more Input Register(s)
Write Single Coil 5 Write Only Write One Coil
10.2.3 Modbus Data Format Description
Name
Size
(bits)
Size
(Integer)
Description
Bit 1 1 For Single Coils and Discrete Inputs
Int16 16 1 Signed Integer,
values are represented in 2’s complement notation
UInt16 16 1 Unsigned Integer
Int32 32 2
Signed Long, values are represented in 2’s complement notation
UInt32 32 2 Unsigned Long
Float
(IEEE 754)
32 2
The Lowest Address is the MSB part of the Float
The Highest Address is the LSB part of the Float
String x x Null terminated string with each characters coded on a word (UTF16)