19
!
StAr
/
StoP
control start/stop, chapter 9.1
SEt1
/
SEt3
change of the set value (day/night) for output 1, chapter 9.1
bLoc
/
boFF
keypad block on/off, chapter 9.1
hAnd
/
hoFF
unconditional manual mode on/off, chapter 9.1
Pr-1
÷
Pr-4
,
End
implementation of the process control function (ramping), chapter 12.7
SAUE
saving of factory parameter values (chapter 10)
14. CONNECTING THE CONTROLLER TO A COMPUTER AND AVAILABLE SOFTWARE
It may be useful (or necessary) to connect the controller to a computer in the following situations:
- remote monitoring and recording of current measurement data and process (status of the outputs) control;
- quick configuration of parameters, to include copying of settings to other controllers of the same type
In order to establish communication over long distances, it is necessary to establish a connection in the RS485 standard
with an available port in the computer (directly or using an RS485 converter), as described in chapter 15. Moreover, as a
standard, the controllers are equipped with a PRG port which enables connecting to a computer using an AR955/956
programmer (without galvanic isolation, cable length approx. 1.2 m). Both the programmer and the RS485 converter
require installation of the supplied serial port drivers on the computer. Communication with devices is effected using a
protocol compatible with MODBUS-RTU (chapter 16). The following applications are available (on a CD supplied with the
AR955/956 programmer or to be downloaded from the Internet at
www.apar.pl
,
Download
section, for operating
systems Windows Vista/7/8/10):
Name
Software description
ARSOFT-WZ1
(free)
- display of current measurement data from the connected device
- configuration of the type of measurement input, the indication range, the control options,
the alarms, the display, the communication, etc. (chapter 10)
- creation on the disk of a "cfg" file with the current configuration of the parameters for future
use (copying of configuration)
- the software requires communication with the controller via the RS485
or PRG (AR955/AR956) port
The detailed descriptions of the aforementioned applications can be found in the installation folders.
NOTE:
Before establishing the connection, make sure that the MODBUS address of the device (parameter 51:
Addr
) and
the speed of transmission (52:
br
) are the same as the settings of the software. Moreover, in the software options,
set the number of the COM serial port in use (in the case of the RS485 converter or the AR955/AR956 programmer
it is the number assigned by the operating system during installation of the drivers).
