1. P1R11FA10 - 001 : User manual

	The following table shows the mapping of the MODBUS protocol WORD that you can be read. All the WORD must be read with the “Holding Registers”.

Modbus Word Address	HA548.04 parameter description	HA548.04 Address	Acces type R/W
0001	Progressive number of refresh cycles	n.d.	R
0002	Error numbers of the comunication toward the HA548.04	n.d.	R
0003	Co1 Torqe threshold	FC28	R/W
0004 0005	Basic differential speed (dn 0)	FC2A	R/W
0006	Co 2 Torque threshold	FC2E	R/W
0007 0008	Differential modulation speed (dn 1)	FC30	R/W
0009	Co 2 Torque threshold	FC34	R/W
0010 0011	Safety differential speed (dn 2)	FC36	R/W
0012	Calculated torque of the screw	FC4E	R
0013	Temperature reading to the analog input IA2	FC50	R
0014 0015	Absolute differential ratio cylinder / screw (long)	FC52	R
0016 0017	Screw speed	FC56	R
0018 0019	Cylinder speed	FC5A	R
0020	Couple read to the analog input IA1	FC5E	R
0021	Torque for screw torque calculation	FC60	R
0022	Torque differential for predictive calculation	FC62	R
0023	Couple preditive purposes	FC64	R
0024 0025	Adjusting differential speed set point	FC66	R
0026	Inputs state	FC6A	R
0027	Outputs state	FC6C	R
0028
0029
0030
0031
0032

The default settings is of the MODBUS/RTU module is:

Mode = Slave
Protocol = RTU
Card Id = 1
Baud-rate = Selectable (See the CN2 paragraph)
Stop-bit = 1
Parity = none
Responce-delay = 5 milliseconds

	Accepted modbus requests
	Type request	Description
	3	Read Holding Register
	6	Write Single Holding Register
	16	Write Multiple Holding Register

Enter to the HA548.04 setup and to set the following parameters:

Code	Description	Value
rS	RS 485 Enable	1
br	RS 485 Speed transmission	9600
db	Number of the data bits	8
Sb	Number of the stop bits	1
PA	Paruty bit	0
rc	Delay of the character transmission	5
CI	Address code	1

The 4 leds L1, L2, L3, L4 shows the diagnostic:

L1 = Transmission to HA548.04 in progress
L2 = Receive from the HA548.04 in progress
L3 = Modbus message in working
L4 = Configuration error

	For reset the communication errors, press the RESET button

To test the modbus functionality on the PC, you must use a program “Modbus RTU Master”.
You can use the ModScan32 program of WinTech (www.win-tech.com)

	Connect properly the USER port (CN2 pins 4A, 5A, 5B) to the serial port of the PC, and then set the dips SW2.1-5 OFF e SW2.6 ON.

Press to menù Connection → Connect:

Select the serial port on your PC (eample COM2)
then in the Configuration section, to set Modbus communication data (Baudrate can be selected as described under CN2)
then in Protocol Selection, to set the data as in the following picture