166
••••
Modicon
QUICKDESIGNER
When the panel ID number is put in the PLC trigger register, the selected panel will be displayed. The
panel change occurs ONLY when the value in the register changes and the change overrides anything
else being displayed. If you leave
Panel trigger tag
blank, panel selection is done using the GOTO
PANEL operator.
You can use a combination of Panel trigger tag and GOTO PANEL operators. The operator can select
different panels by pressing a GOTO PANEL button, and the PLC can select a panel by changing the
panel ID number in the Panel trigger register. In this situation, the GOTO PANEL operator will write
the panel ID number to the Panel trigger register to initiate the panel change. The important point to
remember is that a new panel is displayed when a change occurs in the PLC trigger register.
If you use Panel Trigger Tag, you should also select a Initial Panel. If the Panel Trigger Tag register in
your PLC is equal to 0 or an unused panel ID number, and you don't use a Initial Panel, the display
screen will be blank.
The
Watchdog tag
selection is a register in the target PLC that is written to in intervals determined by
the Timeout setting. The target display will write this register in the selected time period. Your PLC
requires additional logic to examine and test the data in order to determine if a communication fault has
occurred.
Serial Port Pin Assignment
The following drawing illustrates the pin assignments for the QUICKPANEL serial communication
port. Note that pins 4 and 5 should be jumpered.
14 Reserved(VCC;max 0.25A)
15 TXB-Sending Data -
16 RXB-Receiving Data -
17 No Connection
18 CTSB Clear to Send -
19 DTRB Request to Send -
20 DTR-Data Terminal Ready
21 CTSA Clear to Send +
22 DTRA Request to Send +
23 Reserved (BUZZGND)
24 Reserved
25 Reserved (BUZZOC)
1 FG - Frame Ground
2 TXD - Transmit Data
3 RXD - Receive Data
4 RTS - Request to Send
5 CTS -Clear to Send
6 Reserved
7 GND - Signal Ground
8 CD - Carrier Detect
9 TRMX - Terminator for RXA
10 RXA - Receiving Data +
11 TXA - Sending Data +
12 No Connection
13 No Connection
Modbus Slave Tag Variables
The tag variable table for the current Modbus Slave driver is shown below.
Address Format: D
Bit Delimiter for IR and OR: .
Bit Range for IR and OR: 1 to 16
Bit Format for IR and OR: D