Xylem ECOCIRC XL, XLplus Electronic drive - Manual (Page 23)

8 Appendix 2
– Modbus
registers
8.1 Data Organization
The drive offers the below Modbus Virtual Memory
(see par. 8.2), based on a data set that can be divided
into 2 main subsets:

Parameters , that is “Readable and Writable”
data [R/W] used for setting a specific
behaviour, activating a function, writing data,
etc. inside the drive.

Information, th at is “Readable” data [R], used
for acquiring values or feedbacks from the
drive
8.2 Modbus Virtual Memory
The complete data-set managed by the ecocirc XLplus
is accessible considering a Modbus Virtual Memory
made exclusively of Holding Registers, representing
both Parameters and Information: readable and
writable the Parameters, readable only the Information.
For a detailed description of the Modbus Virtual
Memory organization, refer to the related document
“ecocircXL - Modbus Parameters Table”.
8.2.1 Parameters Tables
8.2.1.1 Parameters Table 1
It is a set of parameters [R/W] used for standard
settings: generally the same operations or functions a
user can perform/activate through the user interface.
MB. ADDRESS
(HEX)
PARAMETER DESCRIPTION
0x0000 OPERATING MODE
0 = OFF
1 = ON
0x0001 CONTROL MODE
1 = CONSTANT PRESSURE
2 = PROPORTIONAL PRESSURE
3 = CONSTANT CURVE
0x0002 NIGHT-MODE ACTIVATION
0 = NOT ACTIVE
1 = ACTIVE
0x0003 AIR VENTING PROCEDURE
0 = NOT ACTIVE
1 = ACTIVE
0x0004 PROPORTIONAL PRESSURE SETPOINT
(for CONTROL MODE = 2)
0x0005 CONSTANT PRESSURE SETPOINT
(for CONTROL MODE = 1)
0x0006 CONSTANT CURVE SETPOINT
(for CONTROL MODE = 3)
0x0007 AIR VENTING POWER ON
0 = NOT ACTIVE
1 = ACTIVE
8.2.1.2 Parameters Table 2
It is a set of parameters [R/W] used for advanced
settings: these operations or functions cannot be
performed/activated through the user interface
MB. ADDRESS
(HEX)
PARAMETER DESCRIPTION
0x0030 TEMPERATURE CONTROL MODE
0 = NOT ACTIVE
1 = PROP. TEMPERATURE TO HEAD
2 = CONSTANT TEMPERATURE
0x0031 ABSOLUTE TEMPERATURE SETPOINT
0x0032 DIFFERENTIAL TEMPERATURE SETPOINT
0x0033 TEMPERATURE PROBE
0 = INTERNAL
1 = EXTERNAL
2 = DIFFERENTIAL
0x0034 TEMPERATURE SLOPE
0 = INCREASING
1 = DECREASING
0x0035 K
P
FOR TEMPERATURE CONTROL
0x0036 K
I
FOR TEMPERATURE CONTROL
0x0037 TEMPERATURE CONTROL SAMPLING TIME
8.2.1.3 Parameters Table 3
It is a set of parameters [R/W] used for twin pump
settings.
8.2.2 Information Tables
8.2.2.1 Information Table 1
It is a set of information [R] used for standard use:
generally the same data a user can acquire through
the user interface
MB. ADDRESS
(HEX)
INFORMATION DESCRIPTION
0x0200 INPUT POWER
0x0201 HEAD [H]
0x0202 FLOW [Q]
0x0203 SPEED
0x0204 WATER TEMPERATURE
MB. ADDRESS
(HEX)
PARAMETER DESCRIPTION
0x0060 CIRCULATOR CONFIGURATION
0 = TWIN MASTER
1 = TWIN SLAVE
2 = SINGLE
0x0061 TWIN PUMPS CONTROL MODE
0 = BACKUP
1 = ALTERNATE
2 = PARALLEL