ProSoft Technology 5201-MNET-ASCII - Manual (Page 25)

MNET ♦ ProLinx Gateway Modbus TCP/IP Protocol Configuration
Modbus TCP/IP Interface Module Driver Manual
ProSoft Technology, Inc. Page 25 of 78
September 1, 2010
2.5.2 Commands Supported by the Module
The format of each command in the list depends on the Modbus Function Code
being executed.
The following table lists the functions supported by the module.
Function Code Definition Supported in Client Supported in Server
1 Read Coil Status X X
2 Read Input Status X X
3 Read Holding Registers X X
4 Read Input Registers X X
5 Set Single Coil X X
6 Single Register Write X X
7 Read Exception Status X
8 Diagnostics X
15 Multiple Coil Write X X
16 Multiple Register Write X X
22 Mask Write 4X X
23 Read/Write X
Each command list record has the same general format. The first part of the
record contains the information relating to the communication module and the
second part contains information required to interface to the Modbus TCP/IP
Server device.
2.5.3 Command Entry Formats
The following table shows the structure of the configuration data necessary for
each of the supported commands.
1 2 3 4 5 6 7 8 9 10
Enable
Code
Internal
Address
Poll Interval
Time
Count Swap
Code
IP Address Serv
Port
Slave
Node
Function Code Device Modbus
Address
Code Register
(bit)
1/10th Seconds Bit
Count
0 IP Address Port # Address Read Coil (0x) Register
Code Register
(bit)
1/10th Seconds Bit
Count
0 IP Address Port # Address Read Input (1x) Register
Code Register 1/10th Seconds Word
Count
Code IP Address Port # Address Read Holding
Registers (4x)
Register
Code Register 1/10th Seconds Word
Count
0 IP Address Port # Address Read Input Registers
(3x)
Register
Code 1 bit 1/10th Seconds Bit
Count
0 IP Address Port # Address Force (Write) Single
Coil (0x)
Register
Code 1 bit 1/10th Seconds Word
Count
0 IP Address Port # Address Preset (Write) Single
Register (4x)
Register
Code Register
(bit)
1/10th Seconds Bit
Count
0 IP Address Port # Address Force (Write) Multiple
Coil (0x)
Register
Code Register 1/10th Seconds Word
Count
0 IP Address Port # Address Preset (Write) Multiple
Register (4x)
Register