Orion System PT-Link II LON - Manual (Page 16)

PT-Link II LON ® Technical Guide
PT-Link II Interface 16
Using RUINET
Figure 23: Data Array Overview Screen
Figure 22: Connection Overview Screen
Figure 24: Data Array Detail Screen
Using RUINET
Before continuing with the troubleshooting, make sure the PT-Link II
is connected correctly and the RUINET software is installed, running,
and functioning correctly.
Verifying Proper Communications
From the RUINET Main Screen, press <O> to go the Connection
Overview Screen. This screen supplies information on communication
between the PT-Link II and remote devices. A number of aspect screens
are available, and some of the aspect screens have more than one page.
Use the space bar to toggle between aspects and use the
<PgUp>
and
<PgDn> keys to toggle between pages of the same aspect. The Connec-
tion Overview and Settings Aspect Screen is shown in Figure 22.
The main purpose in this screen is to verify that messages and characters
are being transmitted and received. In addition, it shows the number
of communication errors. If the PT-Link II connection “03” is the
protocol connection, verify that is communicating appropriately. If it
is not, check that the PT-Link II LEDs are working properly, the unit
is wired correctly, and the PT-Link II is confi gured correctly. If the
number of errors is constantly increasing, move to the Error Screen by
pressing the
<Space Bar>
3 times to fi nd out the cause of the errors.
Use the
<PgUp>
and
<PgDn>
keys to toggle between pages of the
Error Screen.
Verifying Proper Values
To verify that the correct values for each unit are being communicated
to the PT-Link II , move to the Data Array Overview Screen. To get to
the screen, press
<A> from the RUINET Main Menu. See Figure 23
for screen details.
In the Data Array Overview Screen (Figure 23) you will be able to see
the data arrays of all the units connected to the PT-Link II denoted by
an array name “DA_XXX_IY”—Y being the address of the unit minus
one. The Address of the unit is determined by a set of dip switches.
To view the values being communicated from a specifi c unit, move to
the Data Array Detail Screen (Figure 24) of the unit by entering the
number under which it is listed. For example, for the unit listed in the
third position, enter
<03>
.
To understand what each value means, look at the Data Array Tables
for the desired unit type, VCM-X, SA, or VCM. You can change the
writable values from this screen by using the modify command. To use
the modify command, press
<M>
from the Data Array Detail Screen
and then enter the Offset you want to change followed by a space and
the new value.
Example: To change the Cooling Supply Setpoint to 60 in the VCM, press
<M>
, enter
<58 60>
, and then press
<Enter>
. This could be useful to
prove that the unit can take and keep the setpoints properly.