Toshiba T2 Series Modbus Module Operation Modbus Commands, Modbus Function Code T2 Command

Page 12

5.Modbus Module Operation

5.1.Modbus Commands

When a MODBUS command is used, the Modbus module translates it to the corresponding T2 register access protocol.

	MODBUS FUNCTION CODE		T2 COMMAND

01	Read Coil Status	DR	Read Device/Register
02	Read Input Status	DR	Read Device/Register
03	Read Holding Register	DR	Read Device/Register
04	Read Input Register	DR	Read Device/register
05	Force Single Coil	DW	Write Device Register
06	Force Single Register	DW	Write Device/Register
08	Loop Back Diagnostic test	**** Not Supported by EX10-MML11
15	Force Multiple Coils	DW	Write Device/register
16	Preset Multiple Registers	DW	Write Device/register

For more information on the Modbus protocol, please refer to the Modbus Protocol Reference Guide, see Additional References.

For more information on the T2 register access protocol, please refer to the Computer Link Function Operation Manual, see Additional References.

Page 6

Image 12

Contents Prosec T2-Series Important Information Safety Precautions Hazard ClassificationsAbout This Guide Contents Page Overview System Configuration To 1 ConfigurationModbus Module To N Configuration External Features and Switch Settings Specifications Modbus Module Operation Modbus Commands Modbus Function Code T2 CommandModbus Data Types and T2 Register Mapping Data Type Attribute Modbus No OffsetReg/Device Address T2 Restricted Registers Modbus T2 Address mapping ExampleModbus Module Setup Modbus Module DIP Switch SettingsStation Number BR2 BR1 BR0 ReservedASY and DLY switches Parity CheckParity PEN EVNExample Configuration Settings ASY DLY Had BR2 BR1 BR0 PEN EVN Wiring Connection to the Modbus Module CPU Setup for the Modbus Module Trouble Shooting If the LED indicators are not flashing, check the followingIf the LED indicators are on solid Additional References Toshiba International Corporation Toshiba Corporation Toshiba do BRASIL, S.A