sauter equitherm EQJW245, Operating Manual

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EQJW245
Communication functions
Current measured values and operating statuses (for example) can be read out
via Modbus. The controller outputs can be switched. The list of the available data
points is given in the Annexe, Section 6.3.1.
If desired, the controller will monitor the activity of the Modbus interface. As long
as valid Modbus enquiries are registered regularly, the controller will reset the
time monitoring. If no more enquiries are directed to the controller for 30 minutes,
it will operate independently again. Changes to the controller outputs triggered
via Modbus then become invalid. This function can be disabled with CP27.
The EQJW245 is compatible with the ‚Modbus-Frame‘ protocol extension.
Enquiries in standard format are answered in standard format, and frame
enquiries receive an answer in frame format. This format allows reliable data
transmission even if the data are segmented during transmission. For Modbus
communication via modem, it is advisable to use the frame format because
precisely timed data transmission from the sender to the recipient is often not
available with modern transmission methods (modem with compression and
error correction functions, digital telephone network). Details about the protocol
extension are available on request.
6.3.1 Modbus data points (holding register)
Number of
holding
register
Description Comment
Read
only Decimal
points
Units
With
math.
Sign?
40001 Product number Product number, device code Yes 0 No
40003 Firmware version Firmware version Yes 2 No
40004 Hardware version Hardware version Yes 2 No
40006 Int. SerNo Internal serial number Yes 0 No
40010 OutdoorTemp_AF1 Measured value for input T
A
No 1 °C Yes
40013 FlowTemp_VF1 Measured value for input T
F
Yes 1 °C Yes
40014 HotWaterTemp2 Measured value for input T
W2
Yes 1 °C Yes
40017 ReturnTemp_RüF1 Measured value for input T
RF
Yes 1 °C Yes
40020 RoomTemp_RF1 Measured value for input T
R
Yes 1 °C Yes
40023 TankTemp Measured value for input T
W1
Yes 1 °C Yes
40100 Time Time (hours, minutes) No 2 No
40101 Date Date (day, month) No 2 No
40102 Year Year No 0 No
40103 Switch position - top
Rotary switch:
0= Position for inputs, 1=Auto, 2=Off,
3=Manual, 4=Normal, 5=Reduced
Yes 0 No
40104
Switch position -
middle
Rotary switch:
0= Position for inputs, 1=Auto, 2=Off,
3=Manual, 4=Day, 5=Night
Yes 0 No
40105
Switch position -
bottom
Rotary switch:
0= Position for inputs, 1=Auto, 2=Off,
3=Manual, 4=Normal, 5=Reduced
Yes 0 No
40106 Mode_Rk1
1=Auto, 2=Stdby, 3=Manual, 4=Sun,
5=Moon
No 0 No
40107 ControlSignal_Rk1
Opening for control signal Rk1 [0 to
100%]
No 0 % No