Data Pro
P/N 10029355 Rev AE
Operation Manual
Page 91 of 92
21.2 Device Description
This area is used to set particulars for each device. The items listed in this section will change
dependent upon which com port it the device is connected to.
i.
Owner
– An automatically generated name that lets the Data Pro know which com port connects to
the device.
ii.
Version
– A user definable field that the user can use to identify a different version of a Modbus
map.
iii.
Unit Id
– This will be the slave address used to poll data from this device by another master device
connected to the Data Pro. Initially, the Unit ID is automatically generated. The Unit ID must be
unique. It cannot match another Unit ID on the Data Pro. If the Data Pro is on a Modbus network
with other Modbus devices, the Unit Id cannot match any other slave address of devices on that
network.
iv.
Modbus Address
– The address that the Data Pro will use to communicate with the device. This
address must be unique for a single comport. The Modbus Address can be duplicated on a
different comport.
v.
Baud
– (Only visible for Com1, 2, 3, 4) The baud rate used to communicate between the Data Pro
and the device. The baud rate must be the same for all devices on that comport. One of the other
comports may have a different baud rate.
vi.
IP
– The IP address for the device. (Only visible for TCP/IP)
vii.
Port
- The Modbus port that the device uses, Port 502 is default standard for Modbus TCP. (Only
visible for TCP/IP).
viii.
Name
– The name is the Data Pro filename for data. The Data Pro application will use the name
as to reference the device. The name cannot contain any spaces.
ix.
Model
– A user definable field to help identify this device
x.
Description
– A user defined field to help identify this device
xi.
Word Order
– This field can be set to “High/Low” or “Low/High”. Word Order defines the byte
storage order for communication between the Data Pro and the device.
xii.
Coil Reg Start
– If the device has coil registers that are to be polled this will be the first address in
the devices map. This address will be used by the Data Pro to determine if the Modbus Address
offset is
‘0’ based or ‘1’ based.
xiii.
Input Reg Start
– If the device has input registers that are to be polled, this will be the first address
in the devices map. This address is used by the Data Pro to determine if the addresses are
‘0’
based or
‘1’ based.
xiv.
Holding Reg Start
– If the device has holding registers that are polled, Holding Reg Start will be
the first address in the devices map. The address is used by the Data Pro to determine if the
addresses are
‘0’ based or ‘1’ based.
21.3 Device Modbus Map
This is the actual Modbus map that the Data Pro will use to poll and the data that it will store
and make available to a master device that is polling the Data Pro.
i.
Register
– The address of the parameter the Data Pro will poll on the device.
ii.
Name
– A description of the parameter that is polled - If the Modbus map is under the DataPro
mode control, the description will be from a drop down list of devices that can be assigned.
Otherwise, the user may enter the description for that parameter.