Filter
Top Products
6-9SectionSystem Settings
168
6-8 Starting Operation
After completing screen data transmission and setting the communication
conditions, connect the NT31/NT31C to the host and start operation.
Note Check the operation of all screen data and host programs carefully before using
them. If incorrect, the system may operate unpredictably.
Press the Quit touch switch on the System Menu screen or other screen. The
NT31/NT31C switches to the RUN mode and starts operation.
The operation at the start is as follows.
Display of The System Initialization Screen
When establishing the communication with a host, the System initializing char-
acter string is displayed on the screen. If the communication with the host cannot
be established, the System initializing screen remains up. If this is the case,
check the settings at the host and the PT side, the cables and wiring.
In addition, creating screen number 9000 enables the display of a screen other
than the System initialization screen.
Transmission of The Contents of Memory Tables
If the Resume Function memory switch is set to ON, or if the initial values of the
memory tables are used, the contents of the numeral/character-string memory
tables are copied to the allocated words at the host.
↓
Display of The Startup Screen
The startup screen is displayed on reading the contents (screen number of the
screen to be displayed) of the first word of the PT status control area.
If the contents are not correct for a screen number, or there is no data registered
for the set screen number, an error message is displayed.
Execute the host program and confirm that the following operations are per-
formed normally.
• Confirm that the NT31/NT31C screens switch in accordance with the host pro-
gram.
If the screens do not switch correctly, check the connection between the
host and the NT31/NT31C, and also check if the hardware settings are cor-
rect. For details, refer to Section 4 Connecting to the Host from the RS-232C
Port, or Section 5 Connecting to the Host from the RS-422A/485 Port.
• Confirm that the operation results of touch switch and numeric value/character
string input at the NT31/NT31C are sent to the host correctly by displaying the
contents of the host words and bits using a Programming Device (e.g. CX-Pro-
grammer).
If the results of operations at the NT31/NT31C are not sent to the host cor-
rectly, check the setting of the display elements. For details on setting dis-
play elements, refer to the description of each display element in the Refer-
ence Manual.
6-9 System Settings
The NT31/NT31C allows a variety of functions which are convenient during op-
eration to be set with memory switches. This section describes the memory
switch settings relating to the operation environment.
Since the memory switch settings are backed up to the flash memory by the bat-
tery in the NT31/NT31C, they are not cleared when the power is switched OFF.
6-9-1 Memory Switch Setting Screens
There are four memory switch setting screens. The required screen can be dis-
played by using the [
] (next screen) and [ ] (previous screen) touch switches.
Switching to the RUN
Mode and Starting
Operation
Confirming the
Communications
between the NT31/NT31C
and the Host