Black Box GEH-6510 manual Adding a Register Group

Adding a Register Group

Click this button to add a new register group. The Select Register Group Type dialog box appears:

Enter the Register Group name. The name may be up to 20 alphanumeric characters and cannot include embedded spaces or special characters, such as: + * / /, ? () “ ‘.

Select the register type from the Select Register Type pull-down list. The Modbus Register Types shown are determined by the function codes selected previously. The four types of register groups that support some of the Modbus function codes are R0, R1, R3, R4. The table below describes the types, registers, supported codes, and uses.

Type Code

Type of Register

Supported Function Codes

Use

R0	Coils	01	Reading coil status
R0	Coils	05	Setting/forcing/
			executing coils
R0	Coils	15	Setting/forcing
			multiple coils
R1	Contacts or discrete	02	Reading
	inputs		contact/discrete
			inputs
R3	Actual value or input	04	Reading actual value
	register		or input registers
R4	Setpoint or holding	03	Reading setpoint or
	register		holding registers
R4	Setpoint or holding	06	Presetting single
	register		setpoint register
R4	Setpoint or holding	16	Presetting multiple
	register		registers

You will need the device’s Modbus RTU protocol specification for the correct codes to add or delete.

Click OK to accept your new register group – the Register Group dialog box is displayed for you to finish defining the characteristics of the new register group.

70 • Chapter Six - Advanced Options DDE Server User’s Guide